5R55W trans stuck in reverse !

[samoyedman]

I are having bad experiance with 2002 transmission type 5R55W in a 4WD explorer. check engine comes on with 4 codes at once, P0743 torque converter clutch, P0750 shift sol. A P0755 shift solenoid B P0760 shift solenoid malfunction CP0765 Shift Solenoid D Malfunction . I replaced solenoid pack and still get there codes, plus every gear is reverse ! I also put in an updated valve body, and the trans fluid is full. any ideas ?

 

[Oxygen]

probably need a new transmission

 

[BrooklynBay]

Check the internal wiring harness, and the range sensor (DTRS).

 

[samoyedman]

I am thinking it is a connecting issue, I re-installed my old solinoid pack and got the same codes and problems. I am taking it apart today, and will look to see if it is connected properly. there is no internal wiring, the harness goes stright throught the case into the solonid pack.

 

[BrooklynBay]

The wiring going into the case is the internal wiring harness.

 

[samoyedman]

it was the way it was plugged in to the solonoid, all codes are gone now ,and the OD light too, but I still have all gears going in to reverse, could it be the low\reverse servo in the pan ?

 

[BrooklynBay]

Did you check the DTRS? This link should help you: http://www.ratiotek.com/5r55w-complete.pdf

 

[samoyedman]

checked it, not the DTRS. pinned out ok, and when I started it, and then unplugged it, I still has reverse in all gears, and the engine was under load in park. I am going to check the valve body now, maybe change in the old one.

 

[96eb96]

I Wonder if its a PCM/Computer issue. Also, check fuses and possible melted wiring coming from the trans. There were issues with harnesses melting over the exhaust manifold.

 

[5.0fatboy]

What was the fix I am having the same prob and going to fix it with tnt very soon. Please help