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5r55s

  1. W

    2006 Explorer XLT 4x4 4.0ltr transmission problem unlike anything I've seen.

    2006 Explorer XLT 4x4 4.0ltr 5R55S automatic transmission just over 171k miles. Ran excellently until last December. When it finally fell victim to the a/c condensation tube that drains onto the solenoid block pigtail connector debacle. Causing the solenoid block to suddenly fail. After...
  2. J

    Transmission clunk(metal on metal) when when first shifting from 1st into 2nd gear

    Hello, I have a 2005 ford explorer 4.0. it has 195k miles on it and i assume the second transmission in it (but I don't really know, i just read that those 5r55s transmissions blow up at about 135k miles). I did 3 pan drops and fills and had to replace the solenoid pack. My transmission makes a...
  3. F

    Transmission help!! 5r55s shift solenoid?

    Hi I've got a 2006 explorer 4.0l that I cannot figure out what to do next. So it wont shift without giving it gas or waiting like 10 seconds. It has a hard time shifting up, it will just slip and slam into gear. I ran my code scanner on it and got a p0750 and p0760 shift solenoid codes. I went...
  4. M

    5r55w solenoid pack compatibility

    Hey y'all can someone tell me if the 1L2Z and 1L2P solenoid packs are the same or if the 1L2P is compatible with my transmission? I have an 03 mountaineer awd 4.0 sohc with the 5r55w. I read that 02 and 03 require the non updated pack part number 1L2Z. But the only ones I can find online for...
  5. K

    5R55S to rebuild or not

    Hello all, I have a 04 Ford Explorer XLT which I have gathered has a 5R55S trans. The other day I lost 2nd gear. About 4 years ago I replaced the solenoid pack due to harsh rev. shift. Anyway that fixed that problem then, now I'm faced with this new one. I have pulled the trans. and tore...
  6. A

    5R55S drives forward just fine / Reverse only works if I do not press the gas

    New user here. I am having an issue with what I believe to be the transmission on my 05 ford explorer 4X2 XLS. I believe it has a 5R55S transmission and I came up with that by doing a VIN check online. It seems like when I drive forward everything seems normal. When I put it in reverse it...
  7. W

    swapping a 2004 explorer transmission in a 2003

    I posted this on an explorer FB page already, but I figured I'd get some more recommendations here. I have a 03 4.0 4x4 that the OD band broke and shot metal through the transmission. I was originally planning on rebuilding it myself, but would rather swap in a good trans and save a lot of time...
  8. D

    5r55s P0755 - Not the first and sure won't be the last

    Let's start off by saying I'm a chef not a mechanic but determined to learn to fix what I can. I got the check engine light on with with abnormal shifting. Pulled the code and got P0755 after some research decided to try the servo bore repair kit. (Little note that is a real struggle to do with...
  9. B

    Wrench light

    I have a 2007 Eddie Bauer, 4X4 w/ 5R55S transmission. About two weeks ago I changed the fluid and filter following the occasional illumination of the wrench light on the instrument cluster. No obvious problems but at 119,000 I figured it was due and thought changing the fluid could be...
  10. S

    5R55S slow engagement after fluid and filter service

    The transmission had no problems before servicing. After servicing, it is slow to engage after coming to a stop or coasting down to a lower gear, there is a delay engaging. After stopping it needs to hit 1800 rpm to engage and does so harder than normal. You can bring the rpms up slowly to about...
  11. C

    08 Ford Explorer 5r55s transmission part? Need Help.

    Hey guys! I'm new to the forums and first time owner of a explorer. I just recently bought one with a bad transmission. When I tore it down for the rebuild I noticed there was a rod broken underneath the reverse servo it holds the reverse band strut in place. I can't find this rod anywhere does...
  12. M

    Solenoid Pack replacement 4L2P with 1L2P

    Hello guys, I need to replace the solenoid pack for my 2005 with 5R55S transmission. The part number I removed from the car is the 4L2P-7G391-AA, i ordered on ebay a replacement and i got the 1L2P 7G391 AF. Do you know what is the difference between these solenoid packs??? Can i install the...
  13. D

    2010 explorer transmission swap

    I have a 2010 explorer 4x4 needing a transmission imagine that right? was wondering if I need any special tools to swap I read that it may need programming to shift right? don't know if its true thanks
  14. O

    Solving shift flare before it ever occurres?

    Has anyone ever tried the Servo bore o-ring fix before experiencing any delayed/hard shifts from 2-3 and 4-5? I have an ‘03 Explorer and it shifts fine but I anticipate it will start “flaring” between shifts. I’m familiar with the simplicity of the fix —temporary or not — and I’m considering...
  15. D

    Midwest shops that can bore and sleeve the servos on 5R55S?

    Hi all! I'm living in Forgotonia Illinois, next to Middleofnowhere, and no one even close to me is even aware of the servo bore issue. Can anyone recommend a shop that can bore and sleeve my case? I have it torn down, and I'm nearly ready to reassemble, but I would like to get it sleeved before...
  16. D

    advice needed re. 5R55S parts swap . . .

    I have two 2002 Ford Explorers built in June 2002--a 4wd XLT (doner vehicle, 116k miles) and rwd (restored XLS, 177k miles). I pulled the (good) engine from the doner truck, replaced all timing chains/cassettes/guides/tensioners; and am about to install in the 2wd XLS. Both vehicles have the...
  17. J

    2005 Explorer 5R55S Loss of 2nd Gear

    Hi, I have 2005 Explorer XLT 4.0 4WD with a 5R55S transmission that just lost 2nd gear and presumably 5th but haven't tested at that high speed. I am hoping you guys might be able to help me diagnose the issue. It has around 150k miles on it. Background and Symptoms: My wife was driving one...
  18. 9

    Do I need to change transmission fluid/filter?

    I've got a 2006 Mountaineer, 4.0 AWD with the 5R55S tranny in it. It has 146k on it, and have owned the vehicle for almost two years, since 117k. The transmission shifts good and has no slips. I have no idea the previous maintenance done on the vehicle before I bought it, only what I've done...
  19. A

    Will a 5R55E fit in a 2004 Explorer 4.0 4x4 currently with a 5R55S?

    My 5R55S is destroyed with multiple issues and the 5R55E is a few hundred dollars less for a remanufactured unit with sleeved servo bores and all the important valve body upgrades and such. Does anyone know if it will bolt up the same to the 4.0 engine and transfer case as the 5R55S does? I've...
  20. A

    Overdrive stopped working

    Hi all, My explorer previously had some problems with engaging any gear and I fixed that with a new valve body. Now, a couple months later, I am having completely different/new problems. I've done tons of research and I've narrowed the problem down to two possible parts. I would really like some...
  21. 08EddieCA

    Looking to buy a new trans - what is a "tag ID/numbers?"

    Hello, I'm finally ready to pull the trigger on a new trans. I can see, for example on rockauto, it will list the transmission for 4WD 5R55S. Then the description will add a TAG number or ID. What is this? I'm stumped. I have a 2008 Explorer Eddie Bauer, 4.0, A4WD, Build date in late...
  22. D

    2004 Explorer P0734 P0735 P0775 P0795 + parasitic battery drain

    The above transpired after a boatload of mostly unnecessary mechanical repairs perpetrated by an independent shop under the guise of being "required" repairs in order to pass PA State Inspection. None of these repairs involved the transmission. [EDIT] Ran fine for 1 week, then began...
  23. M

    Procedure for Periodic Maintenance Transmission 5-Automatic(5R55S)

    Hi guys, My Mercury Mountainer V6, AWD, 4.0 L., SOHC, Transmission 5-Automatic(5R55S) has been performing some strange in the automatic transmision. The efects are next: 1.- High RPMs for transitioning from 1st to 2nd and from 2nd to 3rd speed. I push the accelerator in normal way (I dont...
  24. The-HewMan

    5r55s started losing reverse then gone!

    Just 6 months ago my wife complained about a hard shift going to 4th gear. The fix was new solenoid pak and it's been fine ever since until a few weeks ago she was attempting to back up about a 20 degree incline with 6 persons on board but it would not move. However, shifting to 4X4 low...
  25. C

    Troubleshooting drivetrain issue on 2004 AWD

    Hi everybody. I appologise in advance for the length of the post. I just picked up a 2004 explorer limited 4.6 awd that supposedly needed a new transefer case. The previous owner had gotten the fluid changed in the tranny and tcase to try and make it last a little longer. I had the opportunity...
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