Question about 2004 Pontiac Bonneville

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2004 Pontiac Bonneville SLE that after it is warm stalls when going from drive to reverse. RPMs gage drops and I can hear the engine dive down. It starts back up and drives just fine.

I have changed MAF and cleaned the throttle sensor. Has anyone else ever experienced this?

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  • Pontiac Master
  • 11,762 Answers

Idle air control ! Ford IAC Test stalling problems Ford GM Chrysler there all the same ! How does it idle out of gear , smooth or ruff !

Posted on Apr 21, 2015

Testimonial: "It runs smooth out of gear, like I say only happens when I shift from drive to reverse. Thanks, will have my mechanic check IAC"

  • Jeff Armer Apr 22, 2015

    If it only dies going in to reverse I don't think it's the IAC , Mite be fault with the trans range switch . this is a input to the PCM ,tells the PCM the vehicle was shifted to reverse. short in the range switch could bring down the PCM causing it to die !

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