Jeep Cherokee Forum

Jeep Cherokee 1984-2001: Why Am I Stuck in 4WD?

Is your Jeep Cherokee stuck in 4WD and refuses to switch back to 2WD? Continue reading for the cause and solution of your stubborn drivetrain.

By Brett Foote - September 2, 2015

This article applies to the Jeep Cherokee XJ (1984-2001).

Four wheel drive is a wonderful thing, but only when you need it. Having the ability to send power to all four wheels can get you out of a lot of sticky situations, and can make for great fun along some trails on the weekend. But what do you do when your Cherokee suddenly decides that it doesn't want to shift back into two wheel drive? There are a number of reasons why this could happen, but that's where we come in. Keep reading and we'll help you get that stubborn drivetrain working properly again.

Materials Needed

  • Floor jack
  • Jack stands

Step 1 – Check the ATF fluid level in transfer case

Check and make sure that the ATF fluid in your transfer case is topped off, as insufficient levels can cause the 4WD system to get stuck. Leaks from the rear output shaft seal are very common in Jeep Cherokees. Also, check the condition of the fluid. If it is dirty or dark in appearance, it might be time to change it out. Once you verify that the fluid is topped off and clean, shift the transmission into neutral and attempt to shift out of 4WD.

Figure 1. Check to make sure you don't have a fluid leak in the transfer case.

Step 2 – Check your vacuum lines

4WD systems rely on vacuum pressure to shift between two and four wheel drive. Over time, these lines can crack and deteriorate, leading to a drop or complete loss of pressure that can eliminate the system's capability to shift in or out of 4WD. This is one of the most common causes of a stuck 4WD system. If any of the vacuum lines are damaged or worn, replacing them will get your system functioning properly again.

Figure 2. A vacuum line map for early Jeep Cherokees.

Step 3 – Check your linkage

Another common issue among Cherokees is linkage that slips off, eliminating the ability to shift in or out of 4WD. You can check this by crawling underneath and checking to make sure the linkage is still intact as well as connected properly. Also, check to make sure there is no excessive play in the linkage and that the bushings are in good shape. Replace any worn, damaged, or missing bushings.

Figure 3. Check your transfer case linkage to ensure it is intact, tight, and no bushings are damaged.

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