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4l80e tranny wont move
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<blockquote data-quote="bigs10blazer" data-source="post: 466739" data-attributes="member: 7054"><p>ok ,,99 silverado 5.3, my sons truck,(16)), we put a cam and exhaust in the engine,,, wow runs great,,, 4l60e didnt last very long, my son found a deal on a 4l80e out of a 01 silverado, with flexplate and spacer plate,</p><p>we reserched as much as we could, there are some great websites out there for help, thank you !,</p><p>so we repinned the plug on tranny and at the ecm in the engine compartment, tranny wont move, we added 12quarts of oil, i assume the pump is working if it sucked down the fluid. the shifter on the dash shows the different gears it went in, reverse and drive,</p><p>we used the neutral switch from the 4l60, i know we need to tune the computer for the 4l80 but the guy says it should go into reverse and second gear with out tuning it. </p><p>when you start it up and put in reverse and drive the drive shaft changes direction, but wont try to move. is tranny just bad ? kid we got it from swears he drove truck , (he got the the 6.0 ) or is still in the tunning part that wont let it move , we unpluged big plug on tranny and it still wont move, someone said to try that,</p></blockquote><p></p>
[QUOTE="bigs10blazer, post: 466739, member: 7054"] ok ,,99 silverado 5.3, my sons truck,(16)), we put a cam and exhaust in the engine,,, wow runs great,,, 4l60e didnt last very long, my son found a deal on a 4l80e out of a 01 silverado, with flexplate and spacer plate, we reserched as much as we could, there are some great websites out there for help, thank you !, so we repinned the plug on tranny and at the ecm in the engine compartment, tranny wont move, we added 12quarts of oil, i assume the pump is working if it sucked down the fluid. the shifter on the dash shows the different gears it went in, reverse and drive, we used the neutral switch from the 4l60, i know we need to tune the computer for the 4l80 but the guy says it should go into reverse and second gear with out tuning it. when you start it up and put in reverse and drive the drive shaft changes direction, but wont try to move. is tranny just bad ? kid we got it from swears he drove truck , (he got the the 6.0 ) or is still in the tunning part that wont let it move , we unpluged big plug on tranny and it still wont move, someone said to try that, [/QUOTE]
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