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Old 09-13-2022, 04:09 PM   #13
1976gmc20
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Join Date: May 2015
Location: Montana
Posts: 3,696
Re: Duramax/Allison downshift?

Well, NOW - a year and a half later - she apparently has big transmission problems. Shifting weird and RPM all over the place.

Broke down in Woodland Park west of Colorado Springs again pulling gooseneck with horses. She got a mobile mechanic to "reset" the TCM and only got to Florissant before it started acting up again. She got friends with a pickup to come get her and her friend and her trailer.

So the little shop there say they can't find anything wrong with it. No TCM codes. They told her to just come drive it home empty but her trusted mechanic on west slope says "No!"

So her options are:
1) get a ride and go drive it home
2) have insurance pay for tow to dealer in Col Spgs (they can't work on it until 22nd)
3) Somehow tow or haul it 100++ miles over Monarch Pass to her local trusted mechanic
__________________
Current/past Chevy/GMC trucks:
1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD

Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner
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