Torque converter unlocks at random?
Before exiting the interstate I went half throttle and it shifted to 3rd at 70 and the rpms went to 4K, stayed there and it didn't accelerate like normal. The rpms at 70 in 3rd should have started at around 3k.
Got back into town and it locked fine at 50-55. Is my tranny crapping out? This has me greatly confused.


Before exiting the interstate I went half throttle and it shifted to 3rd at 70 and the rpms went to 4K, stayed there and it didn't accelerate like normal. The rpms at 70 in 3rd should have started at around 3k.
This is not the first time. Happened when I went on a 1500 mile trip in the spring, did it maybe 3 times for a total of about 1 mile on the trip. Had a frost tune done before the trip.
Did it a couple times on a 20 mile trip a month ago, which was about a month after changing fluid/filter.
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