Question about 1998 Jeep Cherokee

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Excessive idle speed

Good afternoon, Lou here in Miami, Florida. I have a '98 Jeep Cherokee/Sport 4X4, in line 6. I just had the head replaced, but now experiencing excessice idle when I start it. It automatically goes to red-line. I've repalced all the sensors, made sure all bolts have been tightened, hoses have no cracks or brakes. Please advise..

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  • yadayada
    yadayada May 11, 2010

    Have you checked for any engine vacuum leaks with a can of carb spray?



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The problem may also be the automatic choke. It could be stuck in fast idle. check all choke settings and linkages clean if nessesary. There is a separate fast idle adjustment screw on the choke linkage that controls engine speed while the engine is warming up. The tip of the screw rests against a cam that slowly rotates as the choke opens during engine warm up. Turn this screw counterclockwise to decrease the fast idle speed.

Posted on Nov 06, 2008


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96 jeep cherokee sport 4x4

I have a 98 Jeep Cherokee and installed a tow hitch this past week. In order to install the necessary support plates with mounted nuts I had to remove the bumper.

First I unscrewed the two screws located at the bottom of each of the plastic rear fenders. The panels (fenders) are then freed by tapping them upward as they are secuted with slots mounted to the body.

WIth the fenders removed, you can now reach to the two mounting bolts which secure the bumber to the frame. They are about 6 to 10 inches from the side of the bumber towards the center. Remove both of these bolts, then release the two bottom bolts and the bumber is free. Be careful not to break the plastic splash guard which runs along the top of the bumber and fastends to the body below the hatch.

Besure to spray the bolts with a good penetrating oil to help free them up before you strip the heads.

Good Luck, hope my experience helps you!

-Been there!

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