Okay so basically this is what is going on with my transmission.
I have a 2007 Toyota tacoma 4x4 DCLB 4.0 V6
I first started to get these issues about a week ago.
This is what it will do.
When starting engine and shifting to reverse it will not go into reverse it acts like neutral.
Truck will go into drive but won't always shift through gears right.
After driving for a little bit when I decide to park it sometimes will shift to reverse when I ask it to.
Sometimes while driving it will shift funky like It won't shift into 5th or will stay in fourth or stay in first just randomness.
Things I have done.
Put in a newer transmission
Changed the solenoids
Checked wiring harness for any imperfections and also checked resistance on wiring harness
Made sure all grounds were connected correctly.
I have hard reset the computer
Transmission fluid has been completely emptied and properly filled with new transmission fluid.
All fuses are good
All connections on the wiring harness have been cleaned and electrolyted and properly connected.
I have also hooked up my computer to the truck and I am able to turn the solenoids on and off with the computer and it will shift into the gears correctly. So I do not believe i have missed something on the wiring harness and I am not to sure of it is the ECM
Any help on this would be greatly appreciated I have been losing my mind over this.
DURANT Toyota in Weatherford TX has basically told me to go eff myself. I have taken it up there to them and asked them to look at it or run diagnostics to see if the ECM is bad. They acted like I never asked the first time. The second time I went up there they told me it would be a $500 diagnostic fee because its a "complicated" issue and it would take around 4-5 hours of labor to use their high tech diagnostic computer to find out the issue. (Not a joke that's what they said)
Please help somebody has had to have this issue.