Ok so this is my third trans swap in the past 4 months....i did all the work myself in my driveway....the newest transmission i just bought a week ago which is an AWD trans because i have an 06 limited AWD. I got it swapped in 2 1/2 days by myself. But this trans is also stuck in 2nd gear. I've checked the wiring harness at every plug and everything in between...on the second transmission i replaced both speed sensors, range sensor, crankshaft sensor, and the shift solenoid. And that one was still in second gear also. I replaced the pcm a couple weeks ago also because the retarded people at the dealership said my pcm was fried and i needed a new one. They wanted to charge $1800. Its pathetic. But yeah so I've done all that. I also have good grounds, I've got the big 3 in 4/0 welding wire, 4/0 power and ground from the alternator to the battery, im also running four agm batteries, ive got 0 gauge grounds from the tranny to the battery, and from both ground strap points to the battery. So I'm good to go as far as power and grounds