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Cherry Bomb Batmobile
Rough Idle
After replacing the battery, spark plugs, coil packs, and ICM I noticed that my car kind of idles funny. I don't believe the RPMs needle bounces either when I feel the car acting weird. I've never taken the throttle body off before to clean it, I've only cleaned it while mounted. Currently there are no codes or lights on. When I replaced the plugs, coil packs, and ICM it did get rid of my misfire code I had. This was about 4,000 miles ago. In a couple of days I'm going to try removing the throttle body to clean it. From what I've read, 2005's have 4 bolts and a wire harness holding the throttle body on so it sounds pretty simple. Is a new gasket needed?
Last edited by Clarky215285; 05-02-2014 at 10:29 PM.
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Forum Regular
Join Date: Jun 2010
Posts: 142
Removed mine last year on a 2006 2.2l to clean it and did not need a new gasket....just assuming the 2005 is the same
good luck and just make sure the key is not in the ignition when you play with the throttle body
good luck and just make sure the key is not in the ignition when you play with the throttle body
2010 Chevy Cobalt LT
Coby7
And do not spray throttle body cleaner directly into the throttle body. Spray on a rag and wipe the throttle body clean. This way you will not remove butterfly shaft lubricant.
Every minute spent angry is a happy minute lost for ever and ever!!! 
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716
Never drive faster than your guardian angel can fly
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Will I need a new gasket?
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---------- Post added at 09:54 AM ---------- Previous post was at 09:47 AM ----------
Whoopssssss. No ones ever told me not to spray directly into it. I use to use an old tooth brush and do that
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---------- Post added at 09:54 AM ---------- Previous post was at 09:47 AM ----------
Whoopssssss. No ones ever told me not to spray directly into it. I use to use an old tooth brush and do that
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2005 Chevrolet Cobalt 2.2L Base Coupe Automatic
Até
Loki
I recommend it. I never reuse any gasket, as once it is crushed by torque it will never line back up the way it was
'09 SS/TC - Stolen
Mods - Injen CAI, CIA MAF Relocate CP's, Dejon FMIC,
Custom 3" DP, 3" Exhaust, GT3076R, Pioneer AVH-4100DVD, Hurst STS, ZZP triple pod, Autometer Cobalt boost/DPIC/WB gauges, Nitto NT05 245/40/18's, H&R Springs, 80:20 Meth Spray
Future - KSport Kontrol Pro Coilovers, 10% Tint, FMIC spray
538whp/501wtq @38 psi on meth and 93 oct on stock ish motor
06 EVO IX MR/SE - Sold
Mods - *Updated 10/6/13* AEM TRUboost EBC, 4in custom TBE, SD dual 93/e85 tune, ETS 4in Race Core FMIC, Dual Aeromotive 400lph Fuel Pumps, T4 Tubular Manifold w/ dual WG's, FP Super99HTZ DBB Turbo, GSC 274 mivec cams, ARP headstuds/rod studs, FIC 2150cc Injectors, Aeromotive FPR, Aeromotive Fuel Rail, catch can, Mini Battery Kit, Slim Coolant Fan, Kiggly Racing high pressure valve Springs/Titanium Retainers, Supertech Stainless Steel Valves, Dual VTA Tial 44mm WG's, 4g64 Stroker Manley Pistons, 155mm 2.4 LR Manley Turbo Plus I Beam Rods with ARP 625 Studs, 100mm forged non-billet Manley Crankshaft, Full H/E PNP with Port Matching, Kiggly Racing Girdle, Dual Tial 50mm BOV's, Excedy Triple Disc Carbon HD Clutch, AEM EMS
'95 Ram 2500 Diesel
Mods - 5in TBE, Boost Elbow set to 28psi, Adjusted fuel pump, Open Turbo.
Future Mods- Super Street Clutch (rated @1400ftlbs tq), 67mm turbo, 160lb valve springs, added timing, tubular exhaust manifold, larger injectors, possible 6 spd swap.
Master ASE Certified Gasoline/Diesel Technician since 2004
Speed Junkies Social Group
Yourcobalt Official Facebook Page!
Syndicate of Tuners Official Page! Up and going again as of 1/11/13
Click here to PM me if you have questions or issues!
2005 Chevrolet Cobalt 2.2L Base Coupe Automatic
No
'09 SS/TC - Stolen
Mods - Injen CAI, CIA MAF Relocate CP's, Dejon FMIC,
Custom 3" DP, 3" Exhaust, GT3076R, Pioneer AVH-4100DVD, Hurst STS, ZZP triple pod, Autometer Cobalt boost/DPIC/WB gauges, Nitto NT05 245/40/18's, H&R Springs, 80:20 Meth Spray
Future - KSport Kontrol Pro Coilovers, 10% Tint, FMIC spray
538whp/501wtq @38 psi on meth and 93 oct on stock ish motor
06 EVO IX MR/SE - Sold
Mods - *Updated 10/6/13* AEM TRUboost EBC, 4in custom TBE, SD dual 93/e85 tune, ETS 4in Race Core FMIC, Dual Aeromotive 400lph Fuel Pumps, T4 Tubular Manifold w/ dual WG's, FP Super99HTZ DBB Turbo, GSC 274 mivec cams, ARP headstuds/rod studs, FIC 2150cc Injectors, Aeromotive FPR, Aeromotive Fuel Rail, catch can, Mini Battery Kit, Slim Coolant Fan, Kiggly Racing high pressure valve Springs/Titanium Retainers, Supertech Stainless Steel Valves, Dual VTA Tial 44mm WG's, 4g64 Stroker Manley Pistons, 155mm 2.4 LR Manley Turbo Plus I Beam Rods with ARP 625 Studs, 100mm forged non-billet Manley Crankshaft, Full H/E PNP with Port Matching, Kiggly Racing Girdle, Dual Tial 50mm BOV's, Excedy Triple Disc Carbon HD Clutch, AEM EMS
'95 Ram 2500 Diesel
Mods - 5in TBE, Boost Elbow set to 28psi, Adjusted fuel pump, Open Turbo.
Future Mods- Super Street Clutch (rated @1400ftlbs tq), 67mm turbo, 160lb valve springs, added timing, tubular exhaust manifold, larger injectors, possible 6 spd swap.
Master ASE Certified Gasoline/Diesel Technician since 2004
Speed Junkies Social Group
Yourcobalt Official Facebook Page!
Syndicate of Tuners Official Page! Up and going again as of 1/11/13
Click here to PM me if you have questions or issues!
Not much to clean off but this is an after picture. I think the plate is just stained that color.
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---------- Post added at 01:27 PM ---------- Previous post was at 01:26 PM ----------
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---------- Post added at 01:27 PM ---------- Previous post was at 01:26 PM ----------
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2005 Chevrolet Cobalt 2.2L Base Coupe Automatic
Still feels like a roughish idle. What next?
Forum Regular
Join Date: Oct 2013
Posts: 111
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