Question about 2006 Pontiac G6

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Why is my wifes 2006 pontiac g6 car losing electrical power

The gauge for the thermostat quit working this time any other time it would just tick and the steering wheel jerks to the right i've changed the battery and starter and the alternator is testing fine what else would it be it did this last night when we was going down the interstate but when i put it in neutral n revved up on the engine the car got a little charge back but it went back to doing the samething about a mile later?

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  • williampo462
    williampo462 Oct 25, 2012

    just checked the fuses the evening and they were all ok i am going to take it to a pontiac dealer tomorrow to have it checked



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  • Pontiac Master
  • 76,630 Answers

Clean the battery cables and check the fuse boxes for corroded connections, esp the one under the hood.

Posted on Oct 25, 2012


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Posted on Jan 02, 2017

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SOURCE: I have a 2006 Pontiac G6 and I can't get the car

Make sure that your shift lever is all the way into the "Park" position. Failure to have it all the way in park will cause the key to get stuck and the starter to not turn your engine over.

If you are sure that the shifter is all the way in Park. then your key cylinder could be faulty and you are most likely locked out from starting the car by the Security System. With a faulty key cylinder, the Security System "thinks" that someone is trying to steal the car and locks out the starter and the fuel system.

Replacement of the key cylinder requires re-programming of the computer system so that the security system will recognize the new cylinder and allow the car to start.

Posted on Dec 05, 2010

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SOURCE: 2006 Pontiac G6 Transmission Jerking

I've had this same issue with my 2006 G6 on and off for about a year now. I've had three different places (one dealership and two service places) try to determine the problem and NONE of them have been able to get an Error Code when they ran a diagnostic.

The dealership replaced the battery, my one service guy did a complete tune up, changed the oil and air filter and checked the alternator. Again, he couldn't get an error code either.

I finally read on here that it could be the speed sensor, so I replaced that. It seemed to solve the problem for approx 6 months and now it's doing it again, only worse this time.

BTW - the speed sensor itself only costs about $40 - $50 bucks, so buy the part yourself (go to any auto parts store - but let them know that you need the speed sensor that goes by the transmission, not the one for the ABS) and have a local service mechanic replace it for you. It shouldn't take more than an hour TOPS, so don't let them rip you off on the labor just because you're supplying the part.

So after replacing the battery, spark plugs and speed sensor (not to mention maintenance related work - oil/air filter changes, etc) - I still have SOME sort of an electrical problem.

Posted on Oct 19, 2009

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