4l80e no speedo no help on truck site :(
01-13-2011, 03:54 PM
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4l80e no speedo no help on truck site :( my truck is a 2000 2500 silverado 4x4 6.0 4l80e. i lost reverse in my truck so i got a replacement trans. tore the old out and got the new in. i have the autotrac t-case. i plugged in all the plugs on the wiring and couldnt find a spot for the one. it seems to me that it goes in the back if the tcase somewheres. its like an oval shapped plug that has 4 pins on the inside. i have a feeling that this plug is causing my speedometer not to work? does anyone have a wiring diagram for my truck or knows where this exactly goes? i spent about a half hour under my truck today looking and cant seem to find it anywheres; im stumped. help me out. also looking for capacities on doing a filter and trans flush myself and also the t case as well. posted the truck site and well not one response there. someone please help me!
01-13-2011, 05:40 PM
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I believe there are plugs on both sides of the rear of the tcase and also on the front on the left side. T case takes 2 qts. And the ttans takes about 5 when dropping the pan.
01-13-2011, 06:12 PM
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i plugged in all the small 2 wire plugs the one im talking about is bigger and has 4 wires. it has an oval outside cover and square plug on the inside of it. if someone really had a wiring diagram that would be amazing!
