5r55s

Hi all! I have a 2003 Explorer XLT 4wd 4.0 with the 5r55s. I replaced the transmission with a reman little over a year ago due to the common solenoid problem. When I replaced the transmission, I had to replace the neutral safety switch as the factory one was damaged by the removal. Ever since...

I have 2007 Explorer 4.0 2WD 5r55s transmission that works weird recently. I've got transmission line popped out last month and lots of fluid came out. They fixed the line and filled the fluid. They explained it was a bad trans radiator. But after the repair I noticed the transmission started...

I've got a 2005 Explorer with a 5R55S transmission. I think the servo (or servo seal) is going out on the "D" automatic setting. I can hear it trying to engage, but it just slips. I can manually put it in third and drive away, though. When the transmission is manually put in 3rd gear (or 2nd or...

Im swapping a rebuilt 5r55s from a 2007 explorer limited trim 4x4 with the 4.0 into my dd 2008 explorer xlt trim 4x4 with the 4.0 as well. Curious if im gonna running into any compatibility issues when i go to swap them, particularly with the ecm/tcm? Will the 2007 5r55s plug and play with the...

Some background - I've had my 2004 Explorer v6 4wd for probably 3 years now, and feels like I've replaced pretty much everything. The transmission went out about a year ago, so I pulled a junkyard tranny and swapped it in, at which point I also put in a reman torque converter and applied the...

Hey! I got a V8 explorer recently with a 5R55S. The vehicle has about 100k miles on the dash. What maintenance should be recommended for this? I’m going to do the regular filter and fluid change but what preventative maintenance should I do to this to avoid the transmission blowing? The vehicle...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

I need to replace my 5r55W/s transmission in my 2005 XLT. I am currnetly looking at a quick fix by swapping in a Junik Yard tranny but I am considering either getting my existing re-manufactured or buying a re-manufactured tranny. Does anyone have any suggestions on where to buy or what to...

Hi everyone, I own a 2006 Explorer with a 4.0 V6 and 180,000 km on it. It recently stopped working in the reverse gear--it mainly slips/revs, at least when in 4 high/auto, grabbing/moving only slightly, even when on a level spot; a person with average strength could hold it back. When...

Bought a 2003 Eddie Bauer 4.0 4X4 from my cousin, who had it since new. Currently 107K on the clock. She sold it to me because the O/D light started flashing and "check transmission" message came across the info center, and she didn't want to fool with a transmission replacement. It is slow to...

New to the forum, been lurking for a while and trying to sort out my problem and I see this hasn't been brought up yet. 04 Explorer XLT with the problematic slamming in reverse. When cold, it doesn't happen, however once warm there is the delay, then slam. I took the reverse servo out to...

Hey I got another used tranny with less than half the km's than the last one and installed this weekend the correct way and now it's running. I put fluid in but only 3.5l in the pan plug and 1/4-1/2l in t/c now it seems like it's not pumping cause it still spilling out after running for 10-15...

05 Ford Explorer XLT 4x4 with 5r55s transmission. I rebuilt the transmission. Replaced bands, frictions, steels, servos, installed shift correction kit, etc, etc. Buttoned everything up today and backed it off of the ramps. Put it in drive and didn't have any power. Dropped it in to 1 and...

Hi All: First, lemme say what an awesome forum this is. I've spent the last three days reading intently and learning a ton. Thanx! My GF has a 03 Explorer with a 5R55S tranny; about 180K miles. Over the past four months or so, I've noticed a shudder at about 55-60mph that occurs...

I am posting this to help anyone experiencing the symptoms my 2005 4.6L AWD Explorer had when I bought it. I got the Explorer used at 97K miles with no history of the vehicle. I noticed at around 100K miles it appeared to slip in 5th. I researched this and found the SK5R55W/S Shift kit online...

Hello everyone, I recently rebuilt the transmission on my 165k 2002 Ford Explorer, saving around $2000. I have taken videos on the entire process, and I have all the information needed. I will be updating this post as I edit the videos and upload them. I don't know how many people are...