The 2005 Jeep Grand Cherokee 3 7 doesn't have a transmission control module. The transmission fluid needs to be replaced every 30,000 to 60,000 miles. Along with fluid changes, terrible sounds will come from the transmission. Old transmission fluid will be awful to the ear. A worn out torque converter will cause a headache. The transmission is one of the most crucial parts of the vehicle. You will come into issues at some point. Hard shifts could come up and that is not good. You may experience shudders. The gears may become stuck. There might be jerking. If the transmission fluid leaks, that needs to be fixed quickly. Delayed shifts will cause acceleration issues. The transmission might slip.
Jeep 05
February 21, 2021
The TCM is in fact mounted to the bottom dash not on the firewall it is to the right of the steering wheel and cannot be seen without first pulling down on sound deadening insulation.
Chris
January 14, 2021
The 3.7 and 6.1 use the Mercedes NAG-1 transmission. These applications do in fact have a separate control module located under the dash by the steering column.
Charles A
July 16, 2020
You will not find a separate tcm in your 2005 jeep grand cherokee 3.7, It is built into the pcm/ecm of your vehicle.
What type of automatic transmission fluid jeep Cherokee 2005 v6 Laredo 3.7
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