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1999 Chevrolet Blazer Question: No third or fourth upshift by transmission after tcc module replacemet.



tj race, Schaller, IA, September 04, 2013, 19:55

Had no communication with tcc module until replacement. Transmission downshifts upshifts one to two fine but goes into a neutral mode when you over 30mph.It does go into 4wd drive now.

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