Idle okay in gear. What is causing this?
Jan 3, 2019 at 11:27 AM
Idles high when put in park only
1992 MERCURY MARQUIS
TRACEY MCMORRAN
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Hello, I'm Danny.
It sounds like you might be having an issue with the idle air control valve.Here is a tutorial showing what is involved:
https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac
Hope this helps and thanks for using 2CarPros.
Danny-
It sounds like you might be having an issue with the idle air control valve.Here is a tutorial showing what is involved:
https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac
Hope this helps and thanks for using 2CarPros.
Danny-
Jan 3, 2019 at 6:51 PM