1995 6.5 t.d. no upshift
#11
You had the same codes get thrown and all?
Did your speedometer still work?
Did disconnecting your battery do nothing to give your shift back even for a minute or two?
#13
Fixed, yep three years later. Broken wire on the wires going into the transmission connector. Pink wire that provides 12 volts to the tranny. It was broken in the insulation about 5 inches up from the connector. No rub mark or cut I the insulation. Found it by tugging on the pink wire an inch at a time till it broke in my finger tips. Spliced it together and now we are up and running.
#14
Fix for Chevy not upshifing
i have just fixed my 1995 Chevy ton 6.5 diesel with the trans not up shifting. The problem in my truck was a loose ground wire on a tail light. I reconnected the ground wire with a connector and my truck shifts fine again.
My brother had a 1994 Chevy truck that also would not shift up and it was fixed by a new fuse for the tail lights.
The electrical system is the first place to start troubleshooting. Check fuses and lights first. I would check voltages at the trans next.
My brother had a 1994 Chevy truck that also would not shift up and it was fixed by a new fuse for the tail lights.
The electrical system is the first place to start troubleshooting. Check fuses and lights first. I would check voltages at the trans next.
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