2006 gmc 4x4, Stock minus exhaust. trans appears to have been rebuilt at some point in its life.
truck will randomly range inhibit on the 1-2 shift when cold in the morning. does it almost every sunday morning when leaving for church.
stop and clear codes in park and your good to go.
I have checked the harness plug, installed a different tcm, and checked fluid level.
I have not pulled the pan off and verified filter installation, or visually checked internal harness. I wanted to make sure it wasn't a common harness issue or something and wanted to have parts on hand if it was.
thanks in advance guys. stay safe
truck will randomly range inhibit on the 1-2 shift when cold in the morning. does it almost every sunday morning when leaving for church.
stop and clear codes in park and your good to go.
I have checked the harness plug, installed a different tcm, and checked fluid level.
I have not pulled the pan off and verified filter installation, or visually checked internal harness. I wanted to make sure it wasn't a common harness issue or something and wanted to have parts on hand if it was.
thanks in advance guys. stay safe
