2003 Ford Ranger High Idle

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COLLEGESTUDENT
  • MEMBER
  • 2 POSTS
2003 Ford Ranger 87000miles 3.0
From one day to the next the idle increased. Now idles at 1900rpm. When driving I push the clucth in the idle will increase to 3500rpm. This is especially annoying when I'm stuck in Los Angeles traffic and my motor sounds like I have my foot on the accelarator. It eventually goes back down to 1900rpm usually when I have come to a complete stop, but sometimes takes longer. No codes come up when I scan it. My guess is the idle control valve or the throttle position sensor. I tried to search for a vaccuum leak but could not find one. Please Help Me :(
Feb 18, 2007 at 4:49 PM
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CHEVY22
  • ✓Experienced Mechanic
  • 1,375 POSTS
with no codes i would suspect the iac , pull it out and see if it has alot of carbon on it , if it does con it and get a new one , they are fairly inexpensive

jim
Feb 18, 2007 at 10:24 PM

Suggested Repair

Remove the idle air control (IAC) valve and inspect it for heavy carbon buildup. Clean it if dirty, and replace it if needed; IAC valves are relatively inexpensive.

Conversation Summary

A 2003 Ford Ranger began idling at about 1900 rpm, rising to about 3500 rpm when the clutch was depressed, with no diagnostic codes and no vacuum leak found. The owner suspected the IAC valve or throttle position sensor. The expert recommended inspecting the IAC for carbon and cleaning or replacing it.

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