Idle problems

Tiny
ROADGEAR
  • 1988 FORD F-250
  • 197,000 MILES

Hi guys, I have a 1988 ford f250. When I start it, it idles at around 850rpm but then jumps to 1900rpm. After a little while it will drop to 850rpm again but then will jump back up to 1900rpm. Could this be a throttle position sensor problem? This is driving me crazy. Any thoughts?

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Sunday, September 30th, 2012 AT 4:44 AM

1 Reply

Tiny
SATURNTECH9
  • EXPERT
  • 30,270 POSTS

Do you have any codes?Lets start there.

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Sunday, September 30th, 2012 AT 5:18 AM

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