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Jeep Wrangler Problems

RepairPal has identified the most common problems with the Jeep Wrangler based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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36
Known Problems
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.

The tailgate hinges can corrode making it difficult to open the tailgate.

Side bars located near the door opening (on the sunrider soft top) may break or a pivot link may break. There are pivot links and side bars available so a complete soft top assembly may not be needed for the repair.
The hood support rod can rattle against the radiator driving over rough roads or when the doors are slammed. Installing a foam ring on the support rod can help to prevent the rattling.

A loud buzzing or whining when the transmission is in reverse may be caused by a regulator valve in the transmission valve body. A revised valve was released that does not resonate. Careful diagnosis should be performed because other causes can create the noise.

If the fuel gauge is inaccurate or not working, it may because the fuel tank has bowed upward and interfered with, or damaged the sending unit (fuel level sensor). If the fuel tank has bowed, fuel tank replacement will be needed.