1987 GMC Sierra idle with A/C on

Tiny
BARECAT6885
  • MEMBER
  • 1987 GMC SIERRA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 270,000 MILES
My truck idle starts to slow until my truck dies when I stop like at a red light. Or any time I stop, I can keep it running by shifting to neutral what is this/
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Monday, March 2nd, 2009 AT 10:50 AM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Check the idle air control valve/throttle position and manifold absolute pressure sensor/PCV and EGR valves to include a fuel pressure test
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Monday, March 2nd, 2009 AT 11:18 AM

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