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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), GMC Mechanic
Category: GM
Satisfied Customers: 5783
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Traveling on cruise transmission disengages. No gears now

Customer Question

Traveling on cruise transmission disengages. No gears now fluid is now over filled by 4 inches.
Submitted: 9 months ago.
Category: GM
Expert:  Jerry Newton replied 9 months ago.

If the transmission doesn't move at all, it's NOT a TCM issue. TCM can fail completely/be unplugged and transmission will still have one forward gear and reverse.

The truck doesn't move at all, is that right?