06 Chevy Cobalt Missfire/Rough idle

Asked by Jul 29, 2013 at 12:44 PM about the 2006 Chevrolet Cobalt LS

Question type: Maintenance & Repair

I Habe A 06 Cobalt, Check Engine Light Is
On. It Has A Very Rough Idle Amd Smoke Is
Coming Out Of Exhaust.. Doesnt Smell Like
Fuel.. I Habe Replaced Spark Plugs, Coil
Pack, Icm, Amd.fuel Filter, Anybody Have
Anyclue On What To.Do Next?? Im Going
Broke On Cash And Patience.. Maybe Even
A Misfire.. Im Lost At This point

7 Answers

10,295

What color smoke?

2 of 2 people found this helpful.

White/Gray.. Its Not A Real.Thick Smoke But It Shouldnt Be Doing That.. Car Only Has 45 Thousand Miles On it

ItsLooks LikeWhen You Druve A Car In The Winter Without Letting ItWarm Up All The way

10,295

White smoke is water. Could just be condensation in the exhaust. Could also be a blown head gasket (which would explain the smoke and the rough idle. Are you losing any coolant?

1 of 1 people found this helpful.

Not Losing Any Fluid And Has Never Gotten Hot..??

10,295

Then it is probably just condensation in the exhaust. Have you run a compression check on the cylinders? Fuel pressure check at the rail? Are you getting a check engine light?

3 of 3 people found this helpful.
30

I am not sure but i might have had the same problem with my 2009 cobalt.i changed the camshaft actuator solenoid you have 2 of then on top of block under the cover. 1 is for exhaust 2 is for the intake mime was the intake side car runs like new now and no problems even after 11,000 miles. The parts run around 50 to 60 $

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

  • 06 Chevy Cobalt Missfire/Rough idle 7 answers

    I Habe A 06 Cobalt, Check Engine Light Is On. It Has A Very Rough Idle Amd Smoke Is Coming Out Of Exhaust.. Doesnt Smell Like Fuel.. I Habe Replaced Spark Plugs, Coil Pack, Icm, Amd.fuel Filter, A...

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • 06 Cobalt rough idle and smells hot 1 answer

    My 06 Cobalt started running rough and also dying at stops. It only seems to do this after the engine is warmed up and has been driven awhile. I also not a burning smell after this only outside the ...

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

  • 06 Chevy Cobalt LT idling rough-sputtering 2 answers

    My Chevy Cobalt LT 2006 is idling hard whenever I have it stopped. Driving is fine. No problems when driving. When stopped, in Drive or Park, it idles rough, lights dimming, acting like it's going ...

    2006 Chevrolet Cobalt LT

    -

    Maintenance & Repair

  • 06 Cobalt Rough Idle/Stall when stopping or quick deceleration 52 answers

    Hello All, Here is the problem I have. 06 Cobalt LT 2.2l 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 ...

    2006 Chevrolet Cobalt LT

    -

    Maintenance & Repair

  • 06 Chevy cobalt 1 answer

    Got oil changed in my 06 Chevy cobalt two weeks ago and the oil is already gone. I haven't noticed any oil leaks or anything

    2006 Chevrolet Cobalt LS

    -

    Maintenance & Repair

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,816 nationwide Cobalt listings starting at $500.

ZIP:

Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
lightGear
Reputation 1,150
#2 munron
munron
Reputation 980
#3 dandyoun
dandyoun
Reputation 960
View All

Related Models For Sale

Used Honda Civic
882 Great Deals out of 84,979 listings starting at $750
Used Chevrolet Malibu
1,169 Great Deals out of 79,728 listings starting at $2,500
Used Ford Focus
817 Great Deals out of 54,866 listings starting at $1,200
Used Ford Mustang
696 Great Deals out of 44,783 listings starting at $1,500
Used Chevrolet Impala
600 Great Deals out of 35,644 listings starting at $899
Used Honda Accord
1,055 Great Deals out of 68,303 listings starting at $1,000
Used Toyota Corolla
1,003 Great Deals out of 69,994 listings starting at $1,800
Used Nissan Altima
1,285 Great Deals out of 75,808 listings starting at $1,695
Used Chevrolet Aveo
23 Great Deals out of 1,636 listings starting at $2,100
Used Ford Fusion
1,288 Great Deals out of 76,498 listings starting at $1,500
Used Toyota Camry
1,244 Great Deals out of 84,502 listings starting at $750
Used Chevrolet Cavalier
3 Great Deals out of 977 listings starting at $695

Used Cars For Sale

2010 Chevrolet Cobalt LS For Sale
12 listings starting at $2,995
2009 Chevrolet Cobalt LS For Sale
109 listings starting at $2,175

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.