Question about 2010 Chevrolet Cobalt LS

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2010 chevy cobalt issues.Engine light comes on/off all the time.reset by removal of battery cable.I tune the car up by changing the spark plugs/boots properly with dielectric grease etc.Car ran fine o

Replaced spark plugs and boots, added cleaner in tank

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  • Donald Morrison
    Donald Morrison Nov 24, 2014

    read codes twice at Autozone,1- cam sensor bad,changed,2- code was timing jumped 37 degrees

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  • 193 Answers

Advance Auto will read your codes for free and give you a print out of codes. This will save you $100 and a lot of guess work. I know MAF, MAP and PCM sensors are common problems on these.

Posted on Nov 22, 2014

Testimonial: "after reading codes,replaced cam sensor,solved most issues.Read code after cam sensor,37 degrees out of time-timing jumped, car runs still,don't think it bent valves"

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6 Suggested Answers

6ya6ya
  • 2 Answers

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SOURCE: Chevy Aveo - Lousy Fuel Milage, From 33+hwy to 19mpg

try giving your car a simple service, change oil, oil filter, air filter, plugs and leads etc. also get your wheels aligned and balanced as having bad geo can also be bad for fuel consumption. if that doesnt work then id recomend a garage.

Posted on Dec 18, 2008

bunnydawg
  • 5158 Answers

SOURCE: 1999 Z24 runs rough when warm

Buy a couple bottles of gas line antifreeze.... the coil would have been my first suggestion... but it sounds like you have water in your gas as well.... gas line antifreeze is alcohol (not the kind you drink) it sucks up water tho.

Robert

Posted on Jan 17, 2009

wyatt1582
  • 453 Answers

SOURCE: 1992 chevy corsica runs rough,stall or dies after stopping

Sounds the EGR valve and EVP sen is bad even if you tested it. The EGR valve cntrols idle and if carbon up will make the car stall or idle high and low (rpms going up and down) This was common on all cars during that time. I would say replace the EGR valve and senosr. This should take care of the problem. One more thing have the fuel pressure check on the car.

Posted on Mar 20, 2009

  • 66 Answers

SOURCE: 1995 Chevy K1500 4.3L V6. Engine has inconsistant idle

Have you changed the fuel pump yet?I had the same exact problem.I replaced my fuel pump with an AUTOZONE PIECE OF JUNK fuel pump.That pump lasted almost 2 days.The second day i had it the truck didnt want to start but it did and it ran like ****,and when i put it in gear it ran as long as I didnt touch that gas pedal.You could go get a fuel pressure test or just replace it,your call.You might want to check your filter too but im sure its the pump.Good luck

Posted on Apr 27, 2009

greg_margo
  • 1959 Answers

SOURCE: Rough idle and acceleration on 1998 Chevrolet Silverado 5.0

Bad EGR valve comes to mind here. Assuming the plugs are good, the EGR valve woiuld be what I'd look at.

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Posted on Jul 26, 2009

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Replacing spark plugs


unless you have a specific issue with the plugs , don't waste your money changing them
the v6 engine has the rear plugs as platinum plugs because it is near impossible to change them and modern engines
( manufacturer design fault in the location of the engine and so they fitted special plugs before installing the engine )
plugs last the life of the engine
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all you have to do for a "tune up" is to have the fault codes read for sensor problems

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