1994 Jeep Grand Cherokee Problems

RepairPal has identified the most common problems with the 1994 Jeep Grand Cherokee as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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22
Known Problems

If a thumping or creaking noise is heard from the transmission tunnel area while driving over bumpy roads, a transfer case shifter repair kit is available which should correct this concern.

Vehicles with manual temperature control may develop a condition where warm air is coming from the instrument panel outlets when cold has been selected. Our technicians tell us a revised air distribution housing is available to correct this concern.

Internal leaks in the speed sensor or speed sensor gear adapter (speedometer adapter) are common. A revised speed sensor (white in color, old versions are black), used in production since November of 1993, solves the problem. If leaks develop between the sensor and the adapter or between the adapter and the transmission housing (transfer case if 4WD), a revised speedometer adapter is available.

One the 3.9L V6 and 5.9L V8 the carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.

On the 3.9L V6 and 5.2L V8 it is often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.

If the alarm sounds without anybody disturbing the vehicle (usually in the middle of the night), a new hood striker plate is available. Made of thicker material, it will maintain contact with the hood switch as the vehicle's sheet metal cools.

A software problem could cause a loud burst of static or sound to come out of the radio (usually within thirty seconds of turning it on). A replacement radio with updated software is available.