when driving my transmission gets stuck in third gear. If you touch the battery cables together it will reset but eventually stick again.
Sep 24, 2021 at 5:24 PM
Transmission gets stuck in third gear while driving
2005 JEEP GRAND CHEROKEE
ROBIN MIRACLE
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Hi,
Based on your description, it sounds like it is going into limp mode. This happens when a fault is recognized by the powertrain control module. Basically, it stays in one gear so you can get it to safety and then checked.
Here is what I suggest: At this point, we need to determine if there is a diagnostic trouble code being stored related to the transmission. To do this, the can-bus should be scanned. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. This type of scan will retrieve a code regardless of the module in which it is stored. Here is a video showing it being done:
https://youtu.be/InIlnsjOVFA
I realize most people don't own a scan tool. However, often times a parts store will do it free of charge.
I'm suggesting this because without a code, it becomes a guessing game. Do this and let me know the results. Additionally, I need to confirm the engine size. You indicated a 5.7, V6 engine. The 5.7 is a V8 Hemi. The 4.7L is a v8, and the 3.7 is a v6. Please confirm this for me.
Take care and let me know what you find or if you have other questions.
Take care,
Joe
Based on your description, it sounds like it is going into limp mode. This happens when a fault is recognized by the powertrain control module. Basically, it stays in one gear so you can get it to safety and then checked.
Here is what I suggest: At this point, we need to determine if there is a diagnostic trouble code being stored related to the transmission. To do this, the can-bus should be scanned. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. This type of scan will retrieve a code regardless of the module in which it is stored. Here is a video showing it being done:
https://youtu.be/InIlnsjOVFA
I realize most people don't own a scan tool. However, often times a parts store will do it free of charge.
I'm suggesting this because without a code, it becomes a guessing game. Do this and let me know the results. Additionally, I need to confirm the engine size. You indicated a 5.7, V6 engine. The 5.7 is a V8 Hemi. The 4.7L is a v8, and the 3.7 is a v6. Please confirm this for me.
Take care and let me know what you find or if you have other questions.
Take care,
Joe
Sep 24, 2021 at 8:49 PM