2003 Ford Exploreer 4x4 5R55W Auto Tranny.

From driving the car it does not shift into 2nd or 5th gear. The O/D light flashes, and the check engine light comes on. Gives Code P0775, which indicates a problem with Solenoid 2.

This weekend I changed the Shift Solenoid Pack with a brand new one from Ford, and the exact same problems still exist. It's as if I hadn't done anything to the car.

I have read somewhere that 2nd and 5th gears share a band in the tranny, could the the problem.?

Thanks.

 

did you reset the computer?

Matt

 

Funny how that works. Fix a problem and the silly computer thinks it's still a problem till you make it check the system by resetting it.

Fred

 

Hmm.

Well I didn't actuall reset it with my code scanner, but when I first started up the car, the check engine light was off, and the O/D light was acting normal, so I had assumed the codes were clear. I actually had to drive it for a little bit before the lights came back on.

Clearing it with my code scanner may be worth a try.

After thinking about it for a couple of minutes, I rememered that I did have the battery disconnected for a couple of hours while I changed the solenoids. So I am thinking this should have reset the computer..

 

Ok, just for the excercise I took a code scanner and clear the codes. However, the same problem still exists.

Any other ideas?

Thanks.

 

i dont think it would be the band. im wondering if your selenoids arnt bypassing. do you still have your old selenoids?

Matt

 

Yeah, I've got them.. What do you mean by bypassing?

Thanks.

 

i wonder if fluid isnt making it past the orings.

there is a check you can perform to see if your old selenoids are actually bad. try this and post your results

https://www.ford-trucks.com/lc/lc.ph...g%2Findex.html

Matt

 

Ok, I did some resistance checks on my old soelnoid body, and I beleive that it was actually good. So, that wasn't the problem.

Any ideas? Things I can check.

I can get a salvage tranny, I have been considering just swapping it out.

 

you could tighten your bands.... rockledge could help you with those instructions. try pm'ing him

Matt

 

Ok, I was able to adjust my O/D band. In fact after I torqued it and then backed it off 2 turns, I don’t believe it was out of specifications. So, I guess the good news is that I don’t believe my O/D band is broken.

I also checked my ohms between the PCM (Connector 175B, I believe) and fuse 37. I got approximately 29 ohms for all of the pressure and shift solenoids, so based on that I don’t believe I have a broken wires, or bad connection, between the PCM, and the solenoid body.

I did notice the following. I can start out driving the car. The O/D light will be off. I kept accelerating once I reach 30mph, the O/D will start flashing, because the car will have not shifted into 2nd gear.

However, if I accelerate to 25mph, and release the gas, the car will shift into 2nd, then I put my put back on the gas, and keep accleration and it will shift into 3rd and 4th normally.

This reminds me of the time I had a bad vacuum modulator on a C-6. I could do the same thing, let off the gas and it would shift.

But to my knowledge these don’t have vacuum modulators, they are all electronic, so I am really confused.

Anyone have any ideas?

Thanks!

 

If it were the 5R55E, I'd say you have a valve body problem.

BTW, have you ran this problem by the good people in the Explorer Forum?

 

Yeah, I posted over there, but didn't get any responses.. I'll try again. Thanks.

 

yep, sounds like a valve body problem. there is a fix in the tech folder at the bottom

Matt

 

So, do you all think I need to replace the valve body assemly and sepearator plate?

Thanks.