Diesel Place : Chevrolet and GMC Diesel Truck Forums - View Single Post - Question: Start up issue 1994 GMC Sierra 6.5 TD C2500
View Single Post
Old 10-30-2011, 09:31 AM   #4 (permalink)
Diesel Master
GenBiltstein's Avatar
Join Date: Nov 2007
Location: Prince George, Virginia
Posts: 1,965

Did you or anyone else conduct any maintenance on the truck? If you did then think about hat was done.

You should have gotten DTC 12. If you didn't then something is up with the self diagnosing capability with the truck.
This is what I pulled off of the net.
DTC 34 24x Crankshaft position sensor circuit error??
DTC 94 - Cylinder Balance Fault #5 Cyl?

I would check and see if you do have a crankshaft position sensor and check the connectivity.

As far as cylinder unbalance I can't answer..
Offline   Reply With Quote