Diagnose Jeep transmission problems by checking the vehicle for common issues such as leakage problems, clutch problems and torque converter problems. Diagnose the simplest problems, such as transmission fluid leakages, before proceeding to more complex ones.
If the Jeep clutch occasionally jams, this can lead to the solenoid being locked or the incorrect calculation of transmission fluid in the torque converter. To solve the issue, engage the parking brake, start the engine, and shift the gear into neutral. Slowly push the clutch pedal while listening for noise. If no noise occurs, push the clutch to the floor, and listen for squealing. If there is squealing, the pilot bushing or release bearing might be damaged and should be replaced.
If the car jumps out of gear and into neutral, the attaching linkage on the gear shifter might be damaged or loose. Tighten or replace any of the defective parts. If the problem continues, the transmission mounts or engine might be loose. Tighten the loose nuts, and pry up on the mounts to ensure they are intact.
If the Jeep has a low level of transmission fluid, the seals in the transmission system might be faulty, causing leakage. To seal the leakage, replace the seals. Symptoms of low fluid include slow shifting or gear slippage.