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Showing results for tags 'haul'.
what do you guys think? I installed a reman transmission on my 2013 gmc 2500 hd. My tow haul and manual shift does not work now. The orange wire is not the problem i have another truck same model i swapped the tow haul lever over from. Before i swapped i verified my donor trucks tow haul lever worked and installed it on my problem truck just to be sure. I know my manual shift worked prior to the transmission installation because the only way i could drive it was manually shifting 1-3. could this be an internal issue with the transmission or tcm? I do have a tpms light on and traction control light on. Considering the manual shift worked before i wouldnt guess this was the problem, but after the transmission installation i swapped over the tire and rims from my donor truck onto my problem truck.