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Kevin Kinzie (not verified)    March 23, 2025 - 11:05AM

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Have a 2020 chevy 2500hd has issues with rear locking up...dealership said no code throwen we can't diagnose it.... fast forward 3 yrs later a recall for my transmission for TCM re program and update,
When the TCM wouldn't take the reprograme they had to dig deeper. Realizing my torque converter and pump were blowen.. guess what still no code throwen bu truck but rear end locked up twice and every stop it downshift so hard I thought it was gonna blow up....still only 99,680klm on truck. Scard to drive it.

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