1998 Ford Escort fast idle

1998 FORD ESCORT
140,000 MILES • 4 CYL • 2WD • MANUAL
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NONASRK
  • MEMBER
  • 2 POSTS
Sometimes when I shift gears the idle goes to 2500rpm. Sometimes I am in neutral and the idle increases. To stop it I have to shut the engine off at a red light. it goes a few miles, then the idle, while shifting increases again. I drove about 100 miles, no problem - after about 90 minutes took off again and the idle issue came back, for the return trip. What is causing the fast idle? It was checked for electrical and nothing showed up.
Dec 17, 2009 at 6:51 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the idle air control valve, throttle position and mass airflow snesors.
Dec 17, 2009 at 9:28 PM
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NONASRK
  • MEMBER
  • 2 POSTS
I have done what you said. Every thing looks normal, now what is the next step? what do I do to stop the fast idle? When i push in the clutch, the idle speeds up to 3000 rpm.
Dec 22, 2009 at 2:02 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check the ignition timing, also the throttle plate if its closing competely and for kinked acc. cable/sticking, throttle linkages to include vacuum leaks
Dec 22, 2009 at 3:59 AM
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