My idle doesn't return when I let foot off the accelerator

Tiny
BFITS
  • MEMBER
  • 2002 DODGE INTREPID
  • 2.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
My idle doesn't return when I let foot off the accelerator, but if I shift to neutral the RPMs drop to normal.
Tuesday, June 14th, 2022 AT 3:53 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
I have seen both the idle air control valve go out or get slow not adjusting the engine idle speed correctly. Also check the vacuum hose going to the PCV valve because they can tear and allow a vacuum leak. Here are two guides to help you with diagrams below to the PCV valve and IAC valve on your car:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

and

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

You should service the throttle actuator as well.

https://www.2carpros.com/articles/throttle-actuator-service

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Tuesday, June 14th, 2022 AT 5:18 PM

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