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I have a 2009 cobalt lt. When I turn the ignition switch, it acts like the battery is dead and it barely turns over. So, I figured I'd step on the gas a bit to help it out and surprisingly it starts but when it starts the dash gauges stay down for a few seconds then they flicker for a few seconds then the go to normal after about a minute. The rpm gauge doesnt immediately go in sync with the engine either until its been running for a bit. Once it's started the at runs as it should. Any ideas on what this could be?

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  • Cars & Trucks Master
  • 3,206 Answers

Clearly the battery needs testing - it could have a faulty cell that sometimes is apt to temporarily recover shortly after a load is applied.

If the battery tests ok and is fully charged the starter could be faulty or the battery leads, the engine ground lead in particular. A place to pay attention to is the inside of crimped terminals.

Having an assistant cranking the engine while you feel all the terminals in turn is a good way of finding a faulty or dirty crimp as it is likely to become warmer than the others.

Posted on May 12, 2017

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: Gauges jump and car is dead

Hi dcwise,

Coming to your rescue....Check on the earthing cables from the battery and especially from the management computer....Once those have been checked try replacing the engine main relay and go through all the fuses....Let me know if you live happily ever after

Best regards Johngee10

Posted on Aug 31, 2008

  • 366 Answers

SOURCE: gas gauge pegs right when ignition turned to run

check for bad or corroded wire in elect.circuit for gauge from sending unit!

Posted on Apr 04, 2009

  • 295 Answers

SOURCE: 1997 Jeep Garnd Cherokee had battery go dead. Once

Replace the battery if it is at least 4 years old. The computers will not power up if it does not have suficent voltage. put a new battery in it and check the charging system.

Posted on Jul 08, 2009

MNfisherman
  • 11896 Answers

SOURCE: Ford Explorer, 1998, V6 4L SOHC. Will not start.

Most partstores will test battery altenator and starter for free. Either your battery is dead or your connections are not metal to metal contact, or you starter relay may be shot. You can put key in on position and either test with a voltmeter or use a screwdriver and jump terminals on solenoid to see if starter turns.

Posted on Sep 26, 2009

redds55
  • 2620 Answers

SOURCE: 2004 Sebring 2.7L. The car was running fine with

check for 12 volts at the battery if it is anything less you will need a new battery.

Posted on Apr 04, 2011

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