Engine idle jumps from 900 to about 1,500 rpm's

1990 MITSUBISHI MONTERO

133,000 MILES • 3.0L • 6 CYL • 4WD • AUTOMATIC

JOHN BLAILE

MEMBER
2 POSTS
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I was going to check the timing as I already replaced the Throttle Position Sensor and Idle Control Valve. I saw a post about using a paper clip, but I can't find anything on the actually procedure. I will be cleaning the throttle body but thought I'd check everything.

Thanks,

Nov 4, 2019 at 3:26 PM

KASEKENNY

CERTIFIED EXPERT
18,907 POSTS

Yep. Here is the procedure including the paper clip.

Another thing to check is for vacuum leaks. Here is a guide that goes through how to do that:

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

Let me know what you find and we can go from there. Thanks

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Nov 4, 2019 at 6:50 PM

JOHN BLAILE

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2 POSTS

Thank you.

Nov 6, 2019 at 9:36 AM