Question about 2005 Chevrolet Cobalt

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My 2005 Chevy Cobalt Ls has been having problems ALOT! When I fust bought it in August of this year it had no problems until we hit a raccoon. The radiator and the air condensor was broken and had to be replaced at a crappy place. After that the car would overheat and shut off and the coolant was being expended in 3 days each time. I took it to a better mechanic and they said the guy put it in wrong, so they fixed it and said nothing was wrong with the car (they had it for 3 days.) 3 days later it wouldnt start ALL day. I tried everything...nothing. Out of nowhere, it starts with nothing being done to it? I took it to auto zone and had the battery tested. No problems. I poured HEET into the gas thinking it was bad gas. Filled the coolant. Checked oil. Ran fine for a few days with no problems. Then same thing and haven't been able to start for 3 days? Any ideas???

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  • Chevrolet Master
  • 3,225 Answers

If it cranks good but won't start, have a helper crank it while you check for spark at the spark plugs. If you have spark everywhere, use a gage and check proper fuel pressure. Also, check fuel injector pulse. Check everything with engine cranking. If your missing all three, check your crank sensor. Can you check applicable trouble codes?

If your saying the starter motor won't even crank the engine, that is a different issue?

Posted on Mar 13, 2017

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Posted on Jan 02, 2017

MrScary66613
  • 1990 Answers

SOURCE: Overheating 2005 Equinox, after belt replacement.

This could be Caused by a Faulty Tensioner not keeping the Belt Tight enough or even the Thermostat. Check the Belt and see how tight it is First.

Posted on Jan 02, 2009

ewashmidas
  • 362 Answers

SOURCE: low coolant light on 2000 chevy impala

There is a technical service bulletin that talks about engine oil contamination causing your problem. The bulletin number is 04-06-02-007 and is dated August 2004. If they came out with a bulletin on this it must be a common problem.

Dave



Posted on Feb 25, 2009

  • 295 Answers

SOURCE: HELP! HELP! SOMEONE PLEASE ! 2001 chevy blazer fuel problems

I would check to be on the safe side the fuel filter is going in the right direction. The arrow is pointing towards the engine away from the fuel tank, Then you need to make sure the fuel pump wiring connections are good contact and did not come loose when driving.

Posted on Mar 18, 2009

seanpwright
  • 2030 Answers

SOURCE: 2000 Chevy Malibu- check engine light

Have the DIS module checked and the coil pack for cyl 3. If either/both of those need replaced, have it done and have the codes cleared. Then see if it clears the others.

You may need a TPS (throttle position sensor) as well.

Posted on Sep 11, 2009

roniecon
  • 6826 Answers

SOURCE: 2005 chevy cobalt 2.2 is running rough (putting)

Number three cylinder is miss fire,it does not mean it is the coil,although it could be,remove the coil,and boot,and spark plug,inspect them to see if the plug,or boot look bad,replace the spark plug,and if the boot is burned or distorted,replace it,a fuel injector can cause a miss fire also,but change the spark plug and see if this solves the problem,if not replace the coil,if it is a dead miss,then the coil might be bad,as for the water in the fuel ,the cap is missing,,and 5 dollars worth of HEET will not hurt,also,fuel from the fuel station,can have water in it.It happens a lot.

Posted on Apr 03, 2010

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