1990 Jeep Wrangler Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Jeep Wrangler

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1990 Jeep Wrangler Problems

Drivability Issues Due to Faulty Throttle Position Sensor

The throttle position sensor (TPS) may fail causing intermittent drivability problems like hard starting, stalling, and/or hesitation when accelerating. A failed TPS will require replacement, proper diagnoses should always be performed before replacing any parts.

Various Engine Oil Leaks

Engine oil leaks from the valve cover gasket, oil pan gasket and timing cover gasket are common.

Dusty Conditions May Cause the Rear Main Oil Seal to Leak

Some models are susceptible to rear main oil seal failures in dirty or dusty conditions. As dirt and dust collect on the oil seal, the abrasion wears through the sealing surface. A spacer is used between the bell housing and engine that has a small slot in the 12 o'clock position. Filling this slot with RTV silicone and cleaning the seal area can help prevent damage to the seal.

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1990 Jeep Wrangler Questions

can a 4speed auto trany go in it? what year will work? (1 answer)

I have a popping noise in the front end when I turn (1 answer)

ive got a 66 cj-5 that no matter what ive done still get water in the oil (1 answer)

I had a machine shop check and shave the heads , I also replaced the intake manifold gasket and head gaskets and still get water in the oil. this jeep has the AMC 304 motor in it . any ideas?

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1990 Jeep Wrangler Recalls

Recall 04E041000
BESTOP AFTERMARKET REAR SHELL ROOF RACKS,MANUFACTURED BETWEEN APRIL 27 AND MAY 20, 2004, DESIGNED FOR USE WITH THE BESTOP HARDTOP MADE FOR THE 1986-1995 AND 1997-2003 JEEP WRANGLER. THE COCKPIT COVER MAY NOT STAY LATCHED TO THE ROOF RACK BECAUSE THE LATCH BRACKET MISPOSITIONS THE ROTARY LATCH T...
Recall 02V041000
ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH MANUAL TRANSMISSIONS, THE PARKING BRAKE CAN SELF-RELEASE WITHOUT WARNING.
Recall 98V005000
VEHICLE DESCRIPTION: PASSENGER AND MULTI-PURPOSE VEHICLES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, ILLINOIS, INDIANA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, OR WISCONSIN, AND THE DIS...

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