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Think it could be the TCM? I've tested just about everything I can and it's all come back good. I'm getting the TC replaced tomorrow because idk if that was replaced when the tranny shop did a "rebuild". Any more ideas would be helpful.

So I tried the manual shifting and it drove pretty well. Starting to wonder if the TCM could be the issue? everything else I've tested seems to be where it should be as far as resistance and condition upon visual inspection. I found one on eBay is it something to try?

I haven't tried driving it with the TCM unplugged. I'll try that tonight after work. Do I use the 1-2 and 3 selectors as the "manual" gears? And I have a solenoid kit I was going to return. I might install them on Sunday if the manual shifting doesn't work. The solenoids seem to be the fix for...

I've checked and replaced the brake light switch already. I'll take a look at NSS, TBS and CPS. As well as the rear speed sensor wiring. I'll post what I find.

Just got home from the gym to find 2 codes relating to the O2 sensors. I knew something was up with them. Found a blown fuse in the PDC and will be replacing it tomorrow. That should fix the sputtering issue I've been having. As for the transmission code, it seems to lockup/overdrive all the...

lawsoncl I'll check that out. Any ideas on the P0740 code/s?

Thank you for your input, but I'm not sure the fluid is the issue. Any other ideas? It's going into the shop on Monday to get a upgraded torque converter installed in hopes that that will fix it but just wanting to see if anyone else has had this issue and could help fix/diagnose it?!

I've had a P0740 and a P0740 PENDING code/s for the past 6 months. Had the transmission (AW4) rebuilt 3 times, luckily 2 were under warranty, we had another shop check wiring and replace the transmission wiring harness. I myself have tested the TPS, replaced the TPS, tested the solenoids at the...