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Idles at 2200 RPM's?

Tiny
NANCY CHRISTIAN
  • MEMBER
  • 1991 FORD F-250
  • V8
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
Replaced the ECM, engine runs very good but idles high at 2200 rpms. This is the second ECM replacement. Transmissions shifts fine, everything else seems normal.
Saturday, December 15th, 2007 AT 5:22 PM

2 Replies

Tiny
DAVE1.1
  • MEMBER
  • 2 POSTS
You might want to check the I A C, idle air controll.
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Saturday, January 31st, 2009 AT 8:44 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
I agree with DAVE1.1, it sounds like the IAC valve is stuck open and needs replacement, here is the location of the IAC and how to change it out. This guide should help as well.

https://www.2carpros.com/articles/engine-idles-too-high

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Tuesday, October 29th, 2024 AT 4:27 PM

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