5r55w swap to 5r55s

[lizard man]

I have an 02 Explorer 4.0 4X4 Eddie Bauer with a bad 5R55W transmission. (loud whining noise and shifting problems) I also have a good 5R55S trans. from an 03 Explorer 4.0 4X4. If i put that tranny in my 02 will it work without problems? I want to sell it so i don't want lights coming on and such. Thank You

 

[JK080]

No it won't work, the two transmissions have different gear ratios, the computer will set gear ratio codes, you are going to have to find a 5R55W.

 

[lizard man]

Any chance that swapping the pcm or tcm from the donor vehicle or reprogramming the pcm from the 02 will work? Just a thought.. Thanks

 

[JK080]

I'm sure that could be possible, I personally have never done that.

Swapping things around tends to lead to some crazy issues so I always try to stick with what the vehicle came with, but I can understand why you would want to try it.

 

[lizard man]

That's what i am afraid of and I don't need any crazy issues. Thanks

 

[john cris]

I’ve got a 5r55s in my 2003 xlt 4x4 that has issues,
It won’t go faster than about 20 mph without binding up. Not sure how to describe it exactly but it’s like it just won’t shift into third. I drained the oil and dropped the pan just to look around. The magnet had some stuff, not that much though. I was surprised how much oil came out of it. I was very tempted to pull the solenoid block and try to test it. Seems logical that could be causing the problem?
I’ve been looking for a used replacement but haven’t found anything yet. Is that even worth trying?
After re install I didn’t use all the oil to refill. Could this have been over filled? Would that create this issue?
Obviously grasping at straws here. Would really like to just get it functional again, just for around town and mostly for my dogs.
It’s old and got 230k miles but it’s really in decent shape,
Yeah except for the tranny
Go Chiefs