1990 Jeep Cherokee Laredo High Revs Help.

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Oct 18, 2015 | 06:09 PM

DragonHawk015

Thread Starter

Newbie

Joined: Oct 2015

Posts: 1

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Model: Cherokee

1990 Jeep Cherokee Laredo High Revs Help.

Hey guys this is my first time on here and I'm just wondering if anybody has ever had to deal with a cherokee that wants to over rev. What I mean is my 90 Jeep Cherokee Laredo wants to rev up to 30k rpm in neutral and in drive will accelerate to 40 mph without me touching the gas pedal. If any of you guys have ever experienced this problem and was able to fix it please let me know.

Thanks,

Chris

Last edited by DragonHawk015; Oct 18, 2015 at 09:35 PM.

Oct 19, 2015 | 08:00 AM

Nick-B

Seasoned Member

Joined: Jun 2011

Posts: 319

Likes: 3

From: Key Peninsula, WA

Year: 1997

Model: Grand Cherokee

Engine: 4.0

Hi Chris and Welcome to the Forum.

When I first got my 1990, when I first started it up it would be OK then slowly increase to about 1500 rpm. Turned out the intake manifold bolts were loose.
Another possibility is a bad TPS (throttle position sensor).
If you haven't found Cruisers Tips yet, here's the link. LOTS of good info there.
https://www.cherokeeforum.com/f51/cr...x-tips-153657/