Question about 1989 Ford F 250
When u push in the clutch to shift gears the engine rev's up and wont stop till u tap ******* the gas feed . i have put on a new cable and an idle speed motor .
I had a similar problem, engine would fluxuate engine idle speed. I had to change the "Throttle Position Sensor." You might have that checked out.
Posted on Oct 19, 2008
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Posted on Jan 02, 2017
SOURCE: idle speed problem
Check the upper intake for vacum leaks, use a can of carb spray, if there is a leak then the engine will react when the carb spray gets sucked in the leak.
Posted on Sep 30, 2008
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