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Discussion Starter · #1 ·
Wondering if anyone can confirm that I need a new tcm?
situation; drove home, everything fine, go outside to move my truck, no start, cycle the key two times with foot on break, truck starts. Advance track service light, engine light, wrench light, no gear indicator light, no action from trans gauge. Truck shift somewhat hard into reverse and will only stay in 4th or 5th while in drive. Hooked up tuner, took a minute but then threw U0101 code. I understand that the tcm is clearly not communicating. I run sct x4 tuner, have for over 40,000 miles, never an issue before. Read a few posts about 6.4s having same issue. I’m assuming it is a dead tcm from what I can gather off of other posts, but would like to hear some input before I buy one. Thanks
Truck is deleted, aftermarket exhaust manifolds, aluminum inter cooler piping, intake, 5 in exhaust, tuned.
 
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