80e swap, not working??
#1
Launching!
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80e swap, not working??
okay i just swapped in a fresh 80 and i went over all my wiring and it acting weird. on the stands it go in to forward and reverse but when the tires get spinning under throttle, when i apply the brakes it kills the motor.
its throwing 2 codes
PO740 - TCC Circuit Malfunction
PO785 - Shift/Timing Solenoid Malfunction
if anyone has so input to what may be the problem please chime in..
also..
Nelson did the tuning part..
thanks,
-Nate
its throwing 2 codes
PO740 - TCC Circuit Malfunction
PO785 - Shift/Timing Solenoid Malfunction
if anyone has so input to what may be the problem please chime in..
also..
Nelson did the tuning part..
thanks,
-Nate
#7
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i told him that i swaped in a 6.0 and a 80e. called a week later and was told its taking alittle longer than expected because the 80e swap. so.. i would hope so.
thanks thunder
-Nate
thanks thunder
-Nate
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#8
High on diesel fumes
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If the tune is good then I'd start checking wires. Make sure you got the pins seated fully in the PCM connector. Double check that you swapped the correct ones. Check the round plug on the trans, and pull the pan and check the internal wire harness and make sure that it's ok.
My hunch is that the tune is not correct or that something is not right in the wires you swapped. I can't remember 100% for sure but I think those codes you have are the ones that get thrown because of the wiring difference between the 60E and 80E.
Check out this thread.
https://www.performancetrucks.net/fo...ht=p0740+p0785
My hunch is that the tune is not correct or that something is not right in the wires you swapped. I can't remember 100% for sure but I think those codes you have are the ones that get thrown because of the wiring difference between the 60E and 80E.
Check out this thread.
https://www.performancetrucks.net/fo...ht=p0740+p0785
#10
9 Second Truck Club
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Sorry to hear about your troubles. I can vouge that Nelson can tune the trans. He did my base tune, and the trans programing is the only thing I havent touched other than lock up, and shift points. Two years of running 10's on a shift kitted stock 80E and still works flawless, and not a spec of anything in the pan.
Hows the cam working out?
Hows the cam working out?