MY TRUCK WON'T IDLE AFTER IT WARMS UP

  • Tiny
  • Randerson3991
  • 1991 CHEVROLET TRUCK
  • 24,400 MILES

My 1991 chevy silverado wont idle. It idles when cold but when it warms up it wont idle when you put it in gear or come to a slow down or stop. I have replaced the IAC, coolant temp. Switch, worked on the EGR, fuel filter, cap, rotor, wires and plugs. Have checked everything I can think of, need help

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Tuesday, October 25th, 2011 AT 10:49 PM

1 Reply

  • Tiny
  • ASEMaster6371
  • EXPERT
  • 25,554 POSTS

Common for the gasket under the throttle body to leak vacuum and cause stalling. See if it is broken or cracked.

Roy

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Tuesday, October 25th, 2011 AT 11:33 PM

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