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When the coolant sensor plugged into the car it misfires and stalls?

Tiny
MARK.CASIPE
  • MEMBER
  • 2005 PONTIAC GRAND PRIX
  • 3.6L
  • V6
  • 2WD
  • AUTOMATIC
  • 192 MILES
Car rpm runs good when coolant temperature sensor plugged disconnected. But when coolant temperature sensor connected car misfire and stall. I have already replaced the coolant temperature sensor. What could be the cause of the problem? What needs to be checked next?
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Saturday, September 28th, 2024 AT 5:09 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,850 POSTS
It sounds like you have a bad PCM, but we should run the codes to see if any are stored, please go over this guide and get back to me:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over this guide and get back to us.
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Sunday, September 29th, 2024 AT 10:20 AM

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