High idling problem

96,565 MILES • 4.8L • V8 • 2WD • AUTOMATIC
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JAMES0524
  • MEMBER
  • 6 POSTS
I'm not getting any trouble codes or no check engine light. However, when my car is in park or neutral it idles high. what could be the problem?
May 1, 2019 at 12:41 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

There are a few things that can cause a high idle. How high does it reach?

As far as possible causes, an engine vacuum leak, a faulty idle air control valve, or even a dirty throttle body can cause it.

Do me a favor. Take a look through this link and let me know if it helps:

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

Let me know.

Joe
Mar 25, 2024 at 1:44 PM
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