ENGINE RUNS GOOD FUEL PRESSURE IS GOOD FUEL ...

  • Tiny
  • Nickco911
  • 2009 CHEVROLET SUBURBAN
  • 92,228 MILES

Engine runs good, fuel pressure is good, fuel quality is good. The Engine will shut down at 185F every time, only happens when engine is at idle. Does not show any warning lights before shut down and does not throw any codes to show that there is a problem. O2 sensor and mass air flow sensor are good. Throttle body plate is good. In shop at room temp.

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Friday, March 29th, 2013 AT 2:17 PM

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  • Tiny
  • Hmac300
  • EXPERT
  • 45,619 POSTS

Check fuel pressure need a number clean throttle plate on both sides and iac hole check ect and crank sensor for high resistance.

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Friday, March 29th, 2013 AT 2:20 PM
  • Tiny
  • Nickco911
  • MEMBER

It was the iac thank you

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Friday, March 29th, 2013 AT 2:36 PM

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