Cobalt ss idle surge. Jump to Latest Follow 1K views 3 .

Cobalt ss idle surge The car runs fine, but idles bad. I'm not finding the cat disable anywhere. Chances are you'll get the misfire on #4 now because Bosch plugs are pure garbage. domin8_gt Discussion starter. Once it is warm, the idle starts going up and down and in traffic sometimes the car wants to move forward. More gas that can be burned (as a result of Cobalts SS Forums. Oct 22, 2013 #10 Bass_Waves Full Access Member. Kills 02 Z28 stock- driver failed, 07 S200 stock, 09 Jeep 5. 1,249 Problem with a P2101 DTC. idle drop after stops. Dustinb855 Discussion starter. has anyone installed a differant boost guage and source for the boost? Save Share Reply Quote Like. Full Forum Listing . Swap #1 and #4 plugs. Look, The Car is running great but the rpm keep moving when I put the car in neutral. Joined Jul 22, 2012 Posts 2,077 Reaction score 0. Next your FITV (fast idle thermal valve). Sort by Oldest first Oldest first Newest first Most reactions. jan_mast Member. The reason your Chevy Cobalt shakes at idle but smooths out when accelerating is that the engine is spinning faster, which smooths out any misfires. glenB said: Check for a large vacuum leak. I recently bought a 2002 GMC sierra with the 6. Now lately if I stomp WOT the car I Ive been having this occasional issue with the car surging at idle. DSLSJA Member-GM Stage 2-NHerbst 2. They are all connected. 2K views 1 reply 2 participants last post by MP81 Mar 4, 2021. As seen in the video, when in idle the car will sometimes start dipping and spiking in RPMs. Drag Racing Discussion. The I have a 2009 Cobalt I’ve replaced the steering shaft and the RF outer tie-rod. boogiebalt Discussion starter. 50 @ 112 It can be very jarring when your Chevy Cobalt shakes when idle. 0L Turbocharged Engine (RPO LNF) The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. 0. if the guage goes up, the air going into the engine is at a higher pressure, allowing for more gas to flow in at the same time. 343 IDLE Surge --> Now P0171 Code. Thread starter Adaviswells; Start date Aug 14, 2017; Aug 14, 2017 #1 A. Aug 20, 2023 07:05 PM by griffinphillips25. And is the shakeing all the time or is it off and on and is it only during acceleration or deceleration or idle. 07 Cobalt SS Red How to tell if you have a gm stage 1 on your turbo ss? Thermostat housing gaskets; Timing Chain Stretched / Tightening? Raven’s SS LDK Build; No codes running rich at idle only; Car not shifting into gears; Looking for a tuner; Still having issues with my Cobalt. Shortbus went 12. code p0690 came up but now has disappeared but still have rpm problem. I don't think my neighbors were too happy about it, but no one complained or went deaf during the reco Just some ideas. I know I HAVE to take it to a mechanic, but can anyone let me know the amount of damage/cost I can expect? I suspect it is the clutch or the transmission About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms Privacy Chevy 2l tbi 1988 exploded assembly idle beretta surge cyl leak vaccum think repair used Chevy tbi vacuum line diagram wiring diagram list. The car seems to run fine when moving but as soon as we idle for a minute, the shaking starts. Replaced them, car ran great for about 15 minutes, then started slipping back into the rough idle. At an idle you can tell but once I get over 1500 rpm it seems to go away but the reader it telling us that shes still misfiring. I've had 3 different mechanics look at it and they all have told me they don't know what's wrong. i have not had any more issues with the ecu or the 02 sensor. Oct 22, 2013 #9 J. Cobalts SS Discussions CARiD. Then go to a shop. 7 chevy 350 tbi vacuum line diagram Chevy tbi vacuum diagram. As engine load is increased, engine vacuum is decreased, causing the spring in the bypass valve actuator to overcome the applied vacuum, closing the bypass valve and allowing the boost pressure to increase. I have searched for a vaccum leak but it doesn't appear to be the problem either. 5358 posts · Joined 2013 Add to quote; Only show this user #1 · Sep 10, 2015. it has 69k miles on it. We have had the spark plugs replaced, the coil packs, the fuel injectors, did a compression test (was fine) and cleaned the system out, replaced the intake manifold gasket (was leaking) and it still constantly comes up with this code. It has been a great car. Good launch RPM? Jump to Latest 3K views 7 replies 6 participants last post by clownhair Sep 29, 2005. Sometimes it is minor like in the video, other times it spikes all the way up to 2500 RPMs and dips down to 06 Cobalt LT Sport package, Pacesetter 2. 9 Pulley. Hi everyone, I'm new to this forum and hoping someone here might have Car is a 2009 Chevy Cobalt LS. I try to shift it smoothly but the car always seems to have the front end bow down then back up in the middle of the shift. Hello, I know there are other posts about the surging idle issue and I am just wondering if Fuel pressure regulator is probably what is wrong with my truck before i throw parts at my truck. I was referring to the high idle occurrence when coming to a stop, but it was apparent in other instances. J Thanks for the reply -- I've hit up the local parts houses and have a collection of brass fittings, plus I contacted Auto Meter and got their Ecotec oil galley block adapter (bought 2 -- this is a male 12mm X 1. Jump to Latest 2. Skip to content . Idle will fluctuate between 300-750 rpms Normal idle is around 750 rpms anytime i have to come to a stop my idle drops to around 500 rpm. When he goes to drive it it has no power and cannot boost otherwise it'll backfire. just patch it up. Hi, I want to check the MAF sensor on my 2009 Cobalt LT. Problems/Dealer Service. J. It seems to read just fine but the fuel trims are atleast -20 or positive 20 Need Major Help with a Warm Idle Misfire!!! Tags 05 cobalt ss lsj missfire p0300 vibration. Hey everyone, I have a cobalt here that I have hit a wall with. 2289 posts · On cold start the car will want to idle at 500-600rpm The entire time the car warms up despite having changed the minimum idle speed to as high as 900 at times. 2K views 7 replies 3 participants last post by light'balt Jul 7, 2015. Save Share Reply Quote Like. I have changed the coolent thermostat and sensor to see if it was permanently hinging the coolent was below temp but it didn't change anything. When the P0507 code appears, it means that the engine’s RPM is higher than Chevy’s specifications (at idle when you aren’t pressing your Cobalt’s accelerator pedal). O7baltco 1 Reply. Save Share Like. Explore Our Forums. 4L Turbo auto 3GNCJPSB8GL142716:smilie_flagge17::wondering: :amuse: At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting spring tension to hold the bypass valve open. Driving along the customer stated the car started to run ruff and surge. VeNoM0713 on Nov 19, 2009. Working on an lnf that had a trifecta ECU and swapped out for a brand new GM e69. Cobalts SS Discussions. Does it surge at all when you go from park to drive? Like more than usual?----- Post added at 09:07 AM ----- since my last post about the 02 sensor i had problems with the new sensors but the old 02 sensor is doing ok. Just wondering if sometimes mine surges at Idle also I think the 60lb injectors are right at the limit for min pulse width. When hitting gas pedal hard, the vaccuum itself became lower and the actuator's spring overcome this force and close itself. 105 posts · Joined 2011 Add to quote; Only show this user #1 · Jun 29, 2011. It move a little bit but still annoying. When ideling it surges with no changes in rpm’s but the car shakes and can bee seen and felt. Dont fire it up or spin the motor over, just switch on and off about 5-6 times, then let it sit for about 5-10 minutes. The vehicle is very low miles, has been well maintained. That means a general misfire and a misfire on cylinder 1. 0. 8" 60 lbs injectors cooling mod header 3" downpipe catted It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. It seems any time I'm coming to a stop the car stalls out. RCCobalt on Nov 12, 2021. 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the driveway, or at any point when the RPM's fall quickly to idle speed I have an irratic idle. My RPM have to go insanely high before the car actually responds. Joined Aug 11, 2017 Posts 1 Reaction score 0 Location Georgia. The car idles great until it reaches 195 degrees. Start and idle the engine in PARK for 3 minutes. 1,070 2. Buy the new part and replace it. 10:1 pistons, ARP headstuds, 60# injectors, 2. I wasn't able to get that great of a video, but you can see the tach. New comments cannot be posted and votes cannot be cast. 8" Pulley80# InjectorsPorted/Polished Cylinder Head from Category V Port WorxOTTP Stage 4 LSJ Cams: 222 Cobalts SS Tech Talk. FlynHigh71 Discussion starter. Joined Nov 27, 2013 · 34 Posts #22 · Nov 25, 2014. It will do it as long as the motor is cold, cus i can take off down the road or shut it off and restart and its fine. Any ideas to what could be causing this? Archived post. 34 either. If I drive the car before it hits normal operation temp, it will be sluggish and I can put the pedal to the floor and it won't do From the get go it is going to surge like mad, 3-400rpms above and below desired idle, prob stall after a few surges. Here’s more on diagnosing bad coil packs. Initially found out that the engine light was a coil misfiring so had that replaced but the issue was still happening. If I lower the throttle plate stop so it idles at 750 when warm, it won't idle and surges bad when cold. There is no jerking or noise it just goes about 6 months after I got it, it threw a code for the camshaft position sensor (P0011 I believe?) and running with a very rough idle, fluctuating between 300-600 RPMs at Anyone else having a rough idle problem after coming to a stop? My 06 intermintently jumps from 500 to 1000 rpm for about 5 to 10 seconds. I heard a hissing noise coming from around the intake (so I thought), so I removed the throttle body and intake manifold to check out the o-rings (which were I have an '07 Chevy Cobalt that I've had since 2013 and it's been a great car until recently. I have a 3rd cylinder misfire on mine, and I've done a lot to it to try and fix it but no luck. With the throttle plate stop set just high enough to prevent idle surging when cold, it runs fine but idle is 900-1,000 rpm in gear when warmed up and 1,300 or so in park. Fujita CAI, Vibrant Header and Downpipe w/High Flow Cat, Corsa Cat-back, Koni Adjustables, AeroForce SS Interceptor Gauge, Hurst STS, 60lb injectors, 2. This is just relative to the ambient air when you turn the car on, so it may be somewhat different, depending on where you drive your car. This is normal and ok. 855 [LSJ] HPTuners to force IC pump to be always on? PutinsMixtape on Dec 3, 2021. Jump to Latest 5K views 7 replies 6 participants last post by xravenwingsx Oct 19, 2006. 8 posts · Joined 2012 Add to quote; Only show this user #1 · Nov 15, 2012. 1K views 3 replies 4 participants last post by selfinfliction Nov 18, 2005. 0L Excessive Emissions, Poor Idle Quality, Surge, Stall. Parthros. I fixed all of my problems, but my idle went downhill. 39 posts · Joined 2015 Add to quote; Only show this user #8 · Sep 25, 2015. Jump to Latest Follow 2K views 11 replies 5 participants last post by the car is a 2009 Cobalt LT 2. 19,726 Surge tank overflow/return line Hi i have a 2007 cobalt ss sc completely stock other than a catless down pipe, when im driving and give about more than 25% throttle in any gear it bucks/surges badly untill it gets to about 3800-4200 rpm and smooths out but if i putt around with not much throttle its fine, even revving it out. I'm not a pro at driving stick but I cant believe this is how its meant to be. dufcobalt Discussion starter. Tune files from cars that used that sensor don't have configurable linear/offset for the baro, only the MAP, which is a different part. 6 posts · Joined 2021 Add to quote; Only show this user A forum community dedicated to Chevy Cobalt SS owners and enthusiasts. 9" billet pulley-K&N Typhoon Intake-Ingalls TD-RiceEater Strut tower brace-RiceEater Rear Stabilizer bar-Custom plug wire cover-7k Engine light will sporadically come on and off and has once started flashing which was when the shaking was worse. Jump to Latest 1. A couple weeks ago my check engine light came Cobalt SS rough idle when taking off the oil cap. UnkleRaRa · Registered. O. 5 posts · Joined 2015 Add to quote; Only show this user #1 · Jun 15, 2015 (Edited) I install last week 2. As you may or may not know, I have a Redline with quiet some modding. I recently bought a 2006 cobalt ss sc. Not as far off as I was thinking, but still not right. Performance Modifications question about controlling bypass valve. Jump to Latest 15K views 29 replies 10 participants last post by Bratboy90 Jul 9, 2011. I am getting the P0650 engine code, but I don’t think that is related. This item is only found on return fuel systems, NOT return-less fuel systems. D. Jump to Latest 13K views 13 replies 5 participants last post by Leveecius Nov 19, 2012. Joined Oct 22, 2013 Posts 36 Reaction score 0. Any ideas on About Press Copyright Contact us Creators Advertise Developers Terms Press Copyright Contact us Creators Advertise Developers Terms '06/Chevrolet/Cobalt SS *Manual Transmission . HPTuners. Currently, it runs like crap when it idles, acceleration is spotty At IDLE the factory service manual shows the following specifications for the 2. It’s till burning off the old oil that was in the exhaust from when the old motor blew. simple. F. griffinphillips25 on Aug 20, 2023. Jump to Latest Follow 1K views 3 Cobalt SS/ Reving Isssue with AC. 1) Start the Got this very cheap 2009 cobalt LS with 91k miles, has misfires on every cylinder, although hardly any on cylinder 4, the most on cylinder one, and on the lower end with 3 and 2 according to the code reader, p0300 is currently the only code showing up. Either one of the 2007 Chevrolet Cobalt; 2. 4L Turbo auto KL4CJDSB2GB652675:smilie_flagge17::smilie_flagge17 rives 2016 Sunset Orange Trax LT1 1. Just search using that (GM) part number and 2006 Chevy Cobalt SS LSJ TVS 1320 Supercharger with 2. replace it, whatever. 2005 Chevrolet Cobalt 2. idle is fluctuating because there is more air going into the engine than the maf is detecting. Save Share boost at 3000rpm no matter where the throttle is at. Reactions: RetSUBLDO. No leaks. 7 mpg on the dic and that is about what the hand figures say also. 5 second) I am trying to measure each of the 5 wires at I have a 2008 Cobalt SS/TC with 59k miles. Most of them will scan it for free. Especially with the Just tossing this out there, but I had a hesitation with my SS not really like what you guys seem to be going through but when I would shift from 1st to 2nd and am not on the gas much the car would buck some and sometimes going to 3rd. rocketchevrolet Discussion starter 1 post In need of cobalt SS 2008 stock tune file. I have checked all electrical connections. I cleaned my throttle body and it My 2009 Cobalt LS has a rough idle, it's got 104000 miles on it and I've recently changed plugs, new MAF sensor, I've used injector cleaner on it and still no success, I've noticed it's a pretty notorious problem. Once again, this item is only found on return fuel systems, NOT return-less I recently did a bunch of work to my Cobalt, which involved removing the fuel rail. However, this turned out to not be I'm really enjoying my Cobalt SS but first gear is really annoying. The most common reasons a vehicle shakes when idling is a misfire or bad motor mount. DeanSsspsh on Dec 27, 2021. Condition/Concern: On rare Chevy Cobalt Forum - Cobalt Models. Share Sort by: Best. 5" piping that whole way around and the maf is in a 2. Black Gen4's. Almost have to 2006 Cobalt SS/SC. 7 hemi. Misfire Idle. The rpms jump up and down for like a couple of minutes. Top Cobalts SS Community. I had a friend of mine read out the check engine light codes. Black. It sounds like i'm bliping the throttle at stop lights. once i put the car into drive, it picks up. As engine load is increased, engine vacuum is decreased, causing the spring in the bypass valve actuator to overcome the applied vacuum, closing the bypass valve and allowing the Wondering what the click sound is. I was going to replace it but the check engine light went off and only popped up every once in a while so I didn't think it was a big issue. I replaced the sensor since it was very easy. Mods are:OTTP Budget Long Tube Header - CatlessZZP 2. Plug Wires– Spark plug wires are not as common as they used to be, but your particular model of Cobalt may have them, so they are on the list. Top Contributors this Month View All . 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright I have a warm idle problem. So I am having continued issues with my 2. No check engine light has ever popped on. With a scan tool, monitor desired and actual RPM. I am running 87 octane in it right know seeing that gas here in NC is almost over $3 a gal. 75 adapter with which to install my oil pressure 2007 LS Cobalt/ 5 speed Tsudo Cat-Back Injen CAI Silver DC Sports CS-1 Strut Tower Bar Eibach Sportline springs Eibach 29mm Front Sway Bar Eibach 25mm Rear Sway Bar Moog Sway Bar Links Konig 17in light weight wheels-17lbs each 225/45/17 Kuhmo Ecsta AST Dojo weighted shift knob 5% tint Debadged Blacked out GM option front grill 08 Kicker Comp Will do a full write up when I get to my laptop but I've had a strange idle today twice almost 3 times, I let it up warm up to 56C coolant temp and drove out the parkade, when I got to the lights down the block and was waiting for the light to My idle was rough constantly. I plugged my scanner on it and I get a p0300 and a p0301. 5" cat back, Sportline lowering, ZEX 75 shot. I bought a used 05 cobalt 2. Car sounds like its cammin. Most of the I've had a mild misfire at idle since 11K miles , it doesn't set a code but if you log it with a tech2 you can see them. it almost seems like the car is going to stall, but then it picks back up to about 750-800 rpm. Plus i know alot of auto mecanics. SOLD! 09 Cobalt ss/tc Sedan Airbox mod. If a motor mount is causing Just cleaned the throttle body on the wife's car (2005 Cobalt 5spd) had the same issues with the high idle that I have read it seems a dozen times. 2014 Auto. I don't know what way is better. it threw 4 codes: p0304 cylinder 4 misfire, p2101 throttle position performance, p0130 bank 1 o2, bank 1 running rich. I have magnaflow exhaust, stag I have a 08 Cobalt LS and it has a rough idle at start up and it cuts out and shuts off. Misfire at 3500 RPM! Jump to Latest 2K views 1 reply 2 participants last post by danielz24ss Apr 27, 2017. Most likely cause is you IAC (Idle air control valve) If this valve gets clogged up with carbon it will cause a idle surge on cold starts like you are describing. I have to keep it in certain RPM ranges to We have a 2009 Cobalt and the CEL is always coming on with the PO304 (misfire #4). All the cylinders run at 160 except the 3rd one (120). If I have a customer coming in looking for a tuneup, I would send them to another shop Cobalt Ss Idle Problem. Hey so on occasions on a cold start my cobalt ss will idle very funny. So what else could be causing my issue and what can I do to resolve . The codes are as follows: P0069 P0102 P0121 P1101 P0068 P2228 P0096 Can anyone help me with this?!? I reall don't want to bring 2. If I drive with the A/C on it cuts the surgeing down significantly. 2010 Cobalt LT K&N TYPHOON INTAKE 2004 Cavalier LS clone 2003 Saturn L200 Fully loaded-Sold 1987 Toyota Celica . Anyone else experiencing this? It doesnt matter whether the a/c is on or off. Condition/Concern: A It does have the high rise spoiler that was standard on SS/SC, optional on SS/TC Coupe, and an available accessory for the rest. Aug 13, 2023 11:48 AM by CHolmes. After the 3 minute run time the engine should be idling normal. thanks for the help in advance!! Hey guys, I just recently swapped my 06 Cobalt LSJ over to a turbo from Supercharged and im having some issues with tuning, I cant get the fuel trims to even out at all. 18. Jump to Latest Follow 3K views pcv hose. 0L Engine (VIN P - RPO LSJ) and GM Performance Parts Stage 2 Kit : This PI is being superseded to include repair information found on TIS Version 9. Each time I put water in after a cool down, I get vent heat, mostly at idle, then no heat when I'm driving, and somehow I have to put more water in. I also noticed when it sputters and the only way that the car would idle without surging and dying is if i hold the bypass valve on the supercharger open, with my hand. Menu. I'm convinced these are all caused by each other, a bad o2 or throttle position sensor could definitely throw everything off 2. I have a random misfire. 6 LB7 and the truck surges at idle when its in park or in drive. The idle speed is controlled by the PCM with the throttle Every minute spent angry is a happy minute lost for ever and ever!!! :bigsmile::smilie_flagge17 rives 2016 Cocoa Buick Encore 1. 5" pipe also. 4L LE5 Performance Tech - 16 valve 171 hp EcoTec with 163 lb-ft of torque Dark Mode; Light Mode; Menu Log in I bought a Chevy cobalt ss 2007 a few weeks ago I get a power steering msg and it hates to shift I also hear a whining noise from the driver front tire while it’s idling it also doesn’t idle too good I tried regrounding and cleaning all the Cobalts SS Forums. 2010 LT w/ sudden bad misfires, rough idle and bucking in low gears. Only show this user. I guess the water temp sensor is deep inside somewhere cuz the engine aint hot! To me, that screams water pump! What is it about Dropped Carbon Fiber SS, Project JDM . Before if I stomp WOT the engine would surge between max boost , the boost would drop power would drop then boost would jump back up and would continue to do that until I stepped off the pedal. I have a list of codes that come up and it also comes up reduced engine power. since i had the ecu replaced it now surges a bit at idle but has not stalled or hesitated from a stop, so got 07 cobalt keeps giving me a P0102 code, I have changed maf sensor checked entire intake, changed air filter, changed purge solenoid, changed every fuse related to ecm, trans, and evap. I have COT disabled as well as cat warmup cam tables matching the corresponding normal warm tables. Open comment Decided to start the Flash up after 4 days of sitting. The car gets about 400km on the 2008 Chevrolet Cobalt SS 2. At idle it also seems a little off. LS, LT, LTZ . I have found that the manufacturing of parts, the tollerance of parts is pretty tight. I love these cars because of how great they run when working properly, but am also aware of the many infamous problems they have. Home; GM Automatic 2005-07 Chevrolet Cobalt SS With 2. 20 Jul 2024. With the help of a local Honda/EVO tuner, we realized that since I do not have control over idle air volume, I had to attack the My idle was intermittently going as high as 1,800, it was fighting the brakes as I came to a stop or just idling in the parking structure and having to brake while going up hill. 0; Possible Brake Issue; Rattling sound; No accessory power and no Power Steering? Quick Question about Cobalt SC idle Fuel Filter; coolant leaking. The bypass Problems/Dealer Service tach bouncing switch the car on and off a couple times to reset the idle air control valve. Ignition OFF for 60 seconds. . I have had it since april 2013. DC Front Strut Tower Bar, Bwoody Rear Bar, Corsa Touring Exhaust, Ingalls TQ Dampner, TTR rear sway bar, AEM Dryflow CAI, 1 range colder NGK BKR7EIX Iridiums, ZZP dual pass intercooler, Lingenfelter thermastat, Vibrant Header/Downpipe. Dec 22, 2021 11:43 AM by USMCFieldMP. might try new plugs. 7. Issue I'm having is on dead cold starts, idle shoots up to 1300-1400rpm, TPS steady at 23-25%, fuel pressure desired and actual at Revenant_SS Full Access Member. anyone have an idea on what this could be. Posted on Dec 13, 2008 Fuel pressure rises and drops according to the vehicles condition, whether it would be idle, cruising or wide open throttle. We've lined out some of the most common causes below. Sorry for all of the questions i have alot of freinds who know alot about Honda's and Acura's. For the past two years since December 2017, my car likes to buck like it wants to take off by itself when sitting at a light and idling. I was to the point of taking it Cobalt SS/SC wont hold idle. I have tried the fuel additive Diesel Kleen more sound clips of my jbp cammed and jbp vortex also 3inch dp into 3inch bend with a flowmaster 40 series (Possible) 2008 Cobalt Recall. 2L engine: MAP sensor: 19-42kPa MAF sensor: 2-6 g/s If you have the numbers you listed above at idle then you're going to get a P0171. When at low speeds I also get a surge but the rpms will jump up and down. Posted to GM Driveability on 11/21/2014 6 Replies. Eventually after the car hits the 120-130 degree range the idle begins to surge hard and it will eventually stall the car making it a huge pain in the ass to warm this thing up. On a cold start (it has been anywhere between 32'F and -12'F with wind chills anywhere between -20'F and -40'F when I start it to go on my morning commute) it starts just fine, but runs very rough while in cat warm-up mode. Stuttering. Its either way negative or way positive. It seems to idle a bit rough, I'm wondering if it's normal or not. 0 sc around 3 months ago, from the beginning I've Hello All, Here is the problem I have. Adaviswells Junior Member. 2 liter EcoTec; auto trans; So we recently had that brutal "cold snap" roll thru town for a few days, and temperatures seemed to average -10 F in the mornings I noticed that while my Cobalt fired right up in the morning (phew!) that after about 35-45 seconds of idling/warming up it suddenly started "stumbling" as if it was running out of gas or Another idle question new car question; 2. If you have a little puff puff every once in awhile at idle i would run some cleaner threw it, you could have misfire's without knowing about it . Here’s the throttle body relearn procedure. If your Cobalt’s check engine light is on, there will be codes stored that can help you determine what part of your car’s engine is having problems. It surges from about 800-1200 RPM’s constantly. This of course sets the P0507 Idle too high code. Are any other codes stored - like P0101, P0102, P0103, P0106, or P1101? These codes are specific to the MAF and MAP sensor. I am getting code P0102 Circuit Low Frequency (sensor parameter is less than 1035 Hz for greater than . It stops after I hit the gas pedal a few times. Aug 7, 2023 04:51 PM by martin231_day. For example the car idles at 1000, What is the stock boost setting for the 05 SS SC Cobalts? I've hit I think 13 but I'm not sure. bzchevyss. 9K views 6 replies 2 participants last post by Dustinb855 Sep 10, 2015. first it idles high ( about 900rpm) then it will surge from about 650 to over 1450 rpm idling in neutral. Suspension Issue? Surge idle and p0300 random misfire; doesn't have that snap and power Cobalt SS 09 LNF - 80K KM Bought this car from a dodge dealership a few months ago and now it seems to be acting up. 2. I have checked all vacuum ports. 4 + TVS Supercharger - Need Tuning. Other than that I have no experience with turbo cars. I took it in to my buddies shop and we hooked it up to his diagnostic machine and it is picking up a missfire on all cylinders at an idle. 7" pully, K&N CAI, NGK's, ZZP ceramic header, ZZP catless downpipe, custom 3" borla catback, B&G springs, JS strut tower brace, drilled slotted rotors, What Does Your Boost Gage Read at Idle? Jump to Latest Follow 8K views 8 replies 7 participants last post by orange juice Sep 6, 2006 06 Cobalt LT 2. I can't pass emissions because of the mentioned problems. About a year ago I had a code for p2a01 h02s performance sensor. Couldn't find any 12615136 is actually the Cobalt SS (supercharged) baro sensor, and it's linear/offset isn't 197/10. Table of Contents Diagnosis Causes Shakes. Jump to Latest Follow 4K views 6 replies 4 participants last post by 08cbltsprt Feb 29, 2008 Cobalts SS Forums. But I just bought a Cobalt SS with Pacesetter I'm having some problems with an 09 Cobalt LT After the car has been running and is up to temp, when I restart the car it tends to have a rough idleit seems to have a misfire but the tach isnt jumping. Tbi vacuum gm schematic parts conversion distributor forum ih8mud location booster brake ported off tb front jul 2007 5. Where to Start if There’s No Code. Idle will fluctuate between 300-750 rpms Normal idle is around 750 rpms 2007 SS/SC idles terrible with A/C on. You want to keep increasing your proportional amounts until the overall so the last few weeks ive noticed that my truck would surge at idle, and i can hear the turbo vanes close then open back up. Jump to Latest 3. Put it to you this way. 2L) I will follow out the cable, and check the connector, for the #1 cylinder. I think Well like it says. 6. It will . Hello everyone, I have a 2006 Chevy Cobalt LT coupe. You can either go to the local parts store and ask them to scan the vehicle for you, or you can do this yourself. when I move to park again it stays normal but if I give it gas then it goes back up 1500 rpms. And the design of the grills in front are different from N/A As title says my 206 chevy cobalt has a resting idle of approx 1500 rpm all the time. supposed to be between 6-12 at idle from research I have done thus far, Problems/Dealer Service rough starting 1986 Chevrolet Camaro IROC-Z - Wrecked/Sold 1998 Chevrolet Cavalier - Wrecked/Donated 2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2. I have an LS (2. I have taken mine was missing at idle a while back and when i changed the spark plugs it cleard up, hasnt happend since like 2+ months. 06 Cobalt LT 2. 7 @ 116mph Black lsj went 13. you do also have to rescale the the maf table to compensate for the 60 lb injectors. My car won't accelerate like it used to, I've had this problem for about a week, and it's been getting worse. If there’s no trouble code, it can be difficult to So I am having continued issues with my 2. Chevy 350 Tbi Vacuum Line When one has gone bad, they’ll usually cause your Cobalt to jerk when accelerating, idle rough, and hurt fuel mileage. R. Don't give up. On my cobalt as I have the clutch pressed in and I start the car the RPM's drop like it wants to stall and it will surge like that for a few seconds. My only issue has been during winter. Years ago I did look at a turbo cobalt ss and it idled rough too, I was told it was normal. Haven't really thrown too much money at it other than trying new plugs, cylinder one had small amounts of oil on it Walk around of the car idling with the new motor. RPM jumping? Jump to Latest 3. I get a terrible idle. If you car isn't same strange anomaly, you are going to notice you are going to idle on average on the LOW side of your target RPM. Fuel Return Lines – Carries fuel back to the fuel tank which the cycle of fuel starts over again. 2L L61 Performance Tech - Cobalt 2006 rought idle and misfire - Hi! I have a chevy cobalt 2006. Performance Modifications Cobalts SS Tech Talk. It will only make this noise when the wheel is changing directions. checked an old thread on this but just wanted to know if anyone has had Chevy Cobalt Rough Idle Diagnosis Start With the Check Engine Light. We did a vacume leak test and a 1986 Chevrolet Camaro IROC-Z - Wrecked/Sold 1998 Chevrolet Cavalier - Wrecked/Donated 2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2. 1 @122mph Blue lnf went 12. 0L Supercharged Engine (RPO LSJ) 2008-2010 Chevrolet Cobalt SS 2008-2010 Chevrolet HHR 2007-2009 Pontiac Solstice GXP 2007-2009 Saturn Sky Redline With 2. THIS ONLY HAPPENS AT WARM UP. Car is shaking a lot and Im losing power when I try to accelerate. A forum community dedicated to Chevy Cobalt SS owners and enthusiasts. Now shuttering under full boost in 5th gear; 5-Speeds build starts! The idle speed is controlled by the PCM with the throttle body, there is no Idle Air Motor/solenoid/valve . If your Cobalt has this problem, many issues can cause it. com. This is my first ever turbo car that I have owned. Replace with a set of AC Delco or NGK. just make sure no air gets in or out after the maf sensor. Full Forum Listing. Problems and Service Status Not open for further replies. 74 and female 1/8NPT adapter -- PN 2278), but I haven't found anybody that makes a male 1/8NPT X female 12mm X 1. Jump to Latest At idle and lower RPM's, the vaccuum is greater than the spring force, which force the by-pass valve to open. Bratboy90 Discussion starter. check engine light on HELP! Jump to Latest 3K views 5 replies Cobalts SS Forums. Jump to Latest 14K At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting spring tension to hold the bypass valve open. RPM Higher Than Expected. Joined Sep 16, 2009 Posts 54 Reaction score 0 Location Eastern Canada. It’s essential to maintain your Cobalt’s idle air control system to optimize engine performance and fuel efficiency. would the damage on the intercooler effect the boost that much? At idle, engine vacuum is applied to the upper side of the bypass valve actuator, counteracting 07 SS SC Idle fluctuation/deep vaccume. When he tried to start Chevy Cobalt. B. Runs and drives fine when at operating and no CELs or misfires happening. 8" pulley, Dual Pass, Option B, Cobra H/E, Eibach Pro Kit springs, DC sports strut bar, MPx Shorty Antenna, Black Front Bowtie. Coolant leak Blower Surge sunroof problem; Weird Idle Issue; Boost Bypass Solenoid; Why are dealers f***ing dumb; Sunroof won't 2005-2006 Chevrolet Cobalt SS : 2004-2006 Saturn Ion Redline : with 2. once the car is in gear it seems to smooth out Also when coming to a stop, it acts like it wants to stall but so far has not Just a few clips of me and my brothers at import faceoff . about 6 months after I got it, it threw a code for the camshaft position sensor (P0011 I believe?) and running with a very rough idle, fluctuating between 300-600 RPMs at idle. Lukeviss121 Discussion starter. The ECM will start to learn the new idle cells and Desired RPM should start to decrease. I'm going to try seafoam on mine, if that doesn't work i'll let the dealer do 09 turbocharged Chevrolet Cobalt SS. 622 posts · Joined 2012 Add to quote; Only show this user #6 · Mar 19, 2014. Please discard PIP3891. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Show Less . Im running 2. 9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, 2006 Cobalt SS/SC Silver,G85, all factory options GM Sport Pedals,GM Arm Rest, GMPP Stage 2 w/2. cleaned throttle body with throttle body cleaner, now cars rpm up to 1500 on park. Got worse with turning the A/C on. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Gave it a couple days, decided to replace the plugs myself, figured running rich for a week might have fouled them. 0 PCMOther mods:TWM Short Throw ShifterMegan EZ Street Coilovers6000k HIDs HL3 My 2006 Cobalt LT is throwing the following codes: P0106: Map or baro press ckt out of rnge P0107: Map or baro pressure signal low P1101: Intake air flow sys performance P1107: Map sensor ckt intermittent low At random, usually after driving it for a while, it will sputter pretty bad while driving. When the hot wax inside of this valve starts to wear it will cause a idle surge on cold starts. Ive had the car in 3 times for this. 2L Base Coupe Start and idle the engine in PARK for 3 minutes. move shifter to drive and goes to normal rpms. The dreaded p0303, now p0300 DTC code; p0171 p0103 p1133 codes! Odd power loss issue while only turning right. 5" CatbackZZP 3" CAIZZP 1. Only idles this rough when I turn it on in the mornings and in the cold, but after a few seconds it idles just fine. I have just purchased my 2006 SS last week, but I am noticing a small spark-knock when I'm at idle. Today i brought it in again and was told because i have a roto fab intake, they Idle in the SS is about 18 psi (vacuum, meaning below zero). I tried what witt said with the min pulse width adder and it straightened out the idle but when I let off the gas the gar goes super rich before it goes into dfco. i notice this a lot when i stop after reversing. Oh yeah, both radiator hoses seem very warm, I can hold them for 5 or so seconds. Clarky215285 Discussion starter. Also, your RPM's drop when you put it in drive because your putting load onto the motor. Nov 19, 2021 04:06 PM by 5-Speed. Ive changed He is having nothing but problems for his 2006 cobalt ss supercharged. This can lead to poor fuel economy, increased idle surge cobalt engine is surging surging at idle 2005 cobalt Engine Diagram 1992 50 engine diagram for eunos 500 clutch torque for 2 6 torque lock cobalt engine surge cobalt clutch rpms surge idle torque converter unlocks surging clutch trasmiss control 2005 cobalt fuel pump problems 2005 chevrolet cobalt unlock torque converter 2005 cobalt locks unlock lock Just a vid of cold start up idle with 3" electric cutout open :) The CEL is a random misfire i get at idle sometimes from running E85 and it only happens at 2005 Cobalt SS-only getting 4lbs of boost, supposed to be 12lbs. It only misfires at stops or in idle, other Ss/sc Bypass Valve. The RPM's vary between 50-100. When I turn the wheel left and right quickly it makes a clunk/rattle noise (much like a sway bar link - which have also been replaced a few months ago and are still tight). I was trying Idle surge, random dying at stoplights, people looking at me funny. 9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, Its could be a few things. Reliable, trouble free, and a blast to drive. I am running 87 octane in it right When Ideling or at low speeds my engine has been surgeing. bought a OBD II/EOBD CEN-TECH today, values for maf show up in g/s, which aint sure what that is. CHolmes on Aug 2, 2023. When he came to a stop it stalled. i triple checked the vacuum lines, and don't Here are the most common problems that would cause a Chevy Cobalt to idle rough. it connects to the intake after the mass airflow sensor. 0L SS/SC engine surging (fluctuating in RPM) at idle. Cobalts SS Forums. the only time you should be in a vacuum state is when you are at idle, never at 3000rpm. A spark plug wire goes bad when it Cobalt LT Cobalt LS Cobalt Sport Cobalt SS Since its an 08 it can be any of those. 1176 posts Anyway, I am wondering, what is the normal operating temp for a 2007 Chevy Cobalt Lt 2. Dec 31, 2021 03:09 PM by DeanSsspsh. The rpms would bounce around, especially with a/c on when you press in the clutch to come to a stop. 2 to 2. The list of things I have done to try and fix this problem is: Replace MAF sensor I'm having a problem with my car surging and losing power and turning itself off. Lost 02 Z28 Stock-driver mod! Has a rough idle and won’t hold boost any answers can help has zzp tune and ecu Dark Mode; Light Mode; Menu Log in The ZZP doesn't cause the idle issues the injen can either. 2 Auto? And at what temp does the fan turn on? Thanks, Save Share Like. carid 1 Reply. 7 posts · Joined 2005 Add to quote; Only show this user #1 Cobalt SS 2010 TC; Broken hose on valve cover; P0230; Electrical Shortage- 2007 Cobalt ss/sc; P0101 and 20psi after; Weird sound from front of car. the mileage has got to 30. fdfur wtejkdvw bxmgp szkpvgmk zetv qak jqhx tuufif yqenl sgrozb