1995 Chevy Silverado

1995 CHEVROLET SILVERADO
18,800 MILES • 6 CYL • 2WD • MANUAL
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JIMMYDOWDEY
  • MEMBER
  • 1 POST
my truck idles at 2000 rpms. if i turn the heater on it drops to about 1500. i replaced the throttle position sensor.it did not solve the problem. when you rev the motor it slowly decreeses rpms.what else can i do?
Jan 27, 2010 at 12:02 PM
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SCOTTY DEE
  • ✓Experienced Mechanic
  • 592 POSTS
Check for any vacuum leaks first.

Scotty
Jan 27, 2010 at 12:47 PM
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SCOTTY DEE
  • ✓Experienced Mechanic
  • 592 POSTS
Defrost or Heater? Because when you turn on the defroster the ac has to run. The AC could be pulling it down more than it should.
Jan 27, 2010 at 1:17 PM
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