Thread: Old tachs
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Unread 02-29-2016, 12:39 AM
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Quote:
Originally Posted by Redneck View Post
That's an impressive task your undertaking and a great way to keep the brain and hands active too.

Seen as your THE duramax guy I have a duramax/Allison question. My gmc is giving me a slight problem witch I think I got narrowed down to a broken wire or bad connection. Once in a while my tranny will go into limp mode throwing a p0700 code and p0659. I've taken it into the local dealership all they have done for me is change the TCM and check the fluids clear the codes and charge me a **** load with the reoccurring issue. I need to get ahold of the wiring diagram and pin location that connects the TCM to the transmission. I'm looking for wire #11 on the TCM to pin 14 on the Ali connector it should be running 12volts. I've looked the internet over without success.
The common issue seems to be a break in that wire you describe when I searched it.
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