Hmmmmmm. The truck runs fine but since I was armed with the paper clip code reader, I decided to give it a try.

Got a code 68
That's a transmission slippage code I think.

I reset by flooring the brake and accelerator while it was reading, un clipped the pins, re clipped them and read it again.

same thing


I have not noticed any slippage or shifting problems. The fluid is red and no burned smell.

A little about the truck first. I bought it from the estate of a CAT maintenance man who was anal about his equipment. The Cousin in law had mucked up some of the wiring and that was a fairly easy fix, Aside from that and the cruise control not working, everything is OK.

Since then the only problem I have had was replacing the ignition key tumbler and the end battery shorted and fried my alternator.
It has 120K miles and is going strong.

Where should I go from here?

Going to move this to the 4L480 trans forum maybe more help there

I thought the attached might help.

Thanks.....If there is a problem it is intermittent.