I have a 1997 Mercury Mountaineer with a 4R70W trans behind a 5.0 liter. Vehicle sat for about 5 months. Went out to put it back on the road, and now the trans seems to be stuck in a forward gear no matter what the selector is in, park, reverse, neutral. Dropped the pan and replaced the filter and replaced what fluid was drained. no difference,.
View 3 RepliesI have a 98 expedition with a 4.2 liter 4x4 and what I believe to be a 4r70w transmission (u code on the door sticker)
The original transmission went at 105k miles and was replaced with a new factory ford transmission by a ford dealer 3.5 years ago. The new transmission only has 10k miles on it.
Now the new transmission only has reverse. reverse works like normal but no forward gears. the idle will change when i put if in gear, but will not move, acts like it is in N . There is no strange noises.
It's hard to believe a new trany is shot already, no towing, or off road use.
My question is : is there ANYTHING that can go bad that would cause this? The trany fluid is clean and clear bright red, and no burnt smell.
I want to check everything I can before calling a tow truck to have it looked at. I will have it repaired if needed, but I don't think I want to replace another tranny.
2006 f150 4x4 4R75E trans slipping in forward gears, reverse is ok. I dropped pan and it was clean. I dropped valve body and found OD servo shaft clip broken, the large snapring was I fine and in place. It allowed the inner shaft to float up and down. Would this cause my forward gears to slip or do I have a bigger problem?
View 14 RepliesMy 1999 7.3l Disel 4x4 transmission quit on me the other day. No forward or reverse. Got towed to my regular repair shop, and they are treating the transmission as a black box and recommending total replacement. The diagnostics they performed were to make sure it was shifting, and that indeed it wasn't going forward or reverse. They drained the fluid and said "it's pitch black" and said it had to be completely replaced.
Fluid level was OK, and it wasn't hot. I was driving along, and merging onto the highway. It downshifted, shuddred, and nadda. Free rev. I coasted to the next exit and into a parking lot. Verified that it was shifting, checked Rev and all forwards. It wouldn't shift into 4W, and 1-2 also wouldn't move.
I'm trying to figure out what might have happened... and if it's worth trying to have the truck towed to a transmission shop and have them diagnose and rebuild, vs just getting a remanufactured transmission. None of the local wreckers have any used transmissions, and the cost between a reman and a used is pretty negligible...
Not sure what the symptoms points to for exact failure mode, be it the torque converter, pump, input shaft, etc... I've never had an automatic transmission apart before, but built plenty of motors and am a machinist by trade. My preference is to try and root cause the failure...
I've been making steady progress tearing down the transmission from my 2002 E-150 but have reached a point that I can't continue. The ATSG AODE manual says to "Rotate the shell assembly to align indent with overdrive anchor pin and then Remove forward sun gear." This is the step right after removing the intermediate stub shaft.
Well, the stub shaft came right out but the shell will not rotate, move, or do anything. It certainly cannot be removed. How to get this out?
Background: The trans is being worked on due to a failure that prevented it from being driven and it actually stalled the engine when shifted into any forward gear. It would idle in park or neutral. It would also still allow the engine to run in reverse but the van would still not move. I was able to push it into the garage in neutral.
Had tranny fluid and filter replaced a couple months ago. It's in a 35 foot motorhome (F53 chassis). The motorhome is within it's GCWR. Climbing a 6% grade at 3,500 rpm, little more than half throttle, like all the other climbs. 80 degrees out. Engine temp was on the letter "R" on the word "NORMAL". All of a sudden my engine redlines as if it popped into neutral. I let off, put it into neutral, and try "D" again. Nothing.
At this point it's uphill so it's naturally slowing down and I try "2". Nothing. Even slower and I try "1". Nothing. Pulling over blocking the right lane on a blind curve on a grade is scary. Had pylon cones out, waving traffic to warn them down a ways, etc.
No fluid on the ground, no slipping prior to this. I have reverse. I see no obvious linkage or electrical/wire issues underneath (from road debris, etc). It's at a shop but I want to know all I can so if they come back with something outrageous I can make a decision. I never pulled the stick, as I was coordinating traffic, highway patrol, a tow truck, etc.
The truck is a 2002 f150 4x4 5.4l... I was driving down the free way last night in 2wd doing about 90kpm when there was a loud bang like a ran over something. Speedo went to zero and abs light came on. Pulled over and shut it down. Crawled underneath to check so damage and couldn't see anything. Stared it back up put it in drive and it just revs. No forward gears or reverse. Fluid level is good, bright pink. Dropped the transmission pan, pan is clean and magnet has next to nothing on it.
View 14 RepliesI have a F150, 2nd 4.6, 122,000 miles. No forward gears. When put in drive, you can feel it trying to engage, but doesn't engage completely. Reverse is a solid engagement. Replaced filter and fluid, same issue.
View 12 Replies2003 Explorer with a slipping transmission...codes are P0731, P0732, P0733... Just had a new solenoid pack installed last week when O/D light came on and truck was clunking into reverse. Now, after new pack was installed the forward gears are slipping all over the place!
View 5 RepliesI am looking at buying a 91 f250 4x4 with a 5.0 and an e4od. When I start the truck I can feel It roll forward A little bit. I can put the trans In od or nuetral and It will drive and shift normally thru all 4 gears, no slipping and no noise no vibration, It shifts and acts perfectly normal. 1st and 2nd work fine as well. When I put it in reverse It rolls forward slightly then drops Into reverse, it will not actually back up, you can rev the engine to stall speed but no higher. Sometimes in park If you rev the engine It will actually over come the parking pawl and roll forward.
Also when In park I can rev the engine to stall speed only. It only starts in p or n, and the reverse lights come on in R so Im assuming the mlps is adjusted properly and the manual protion is adjusted properly. I pulled codes and had 3 in total, ect shorted, egr flow insufficient, and 1 code for torque convertor clutch solenoid I believe It was 632. Im assuming the reving up to stall speed Is related to the tc code. The fluid level Is fine but is a little dark In color, I tried doing a search with no luck ..
I have a 1999 F-250 4X4 7.3 lit Diesel engine. My problem is my transmission will go into reverse great no problem but it won't go forward. I have no problem rebuilding the transmission if that's what it needs, I just want to make sure there isn't a electrical issue from the PCM first?
View 14 RepliesI recently bought a decent looking 1999 f250 4x4 5.4 auto. It has no forward gears and will only move in reverse. I topped off the fluids and have found no leaks so far the cooler lines are crusty but dry. I am gonna need to swap this thing out or do some more trouble shooting if there may be a non rebuild issue to solve.
View 4 RepliesI have a 95 F250 with 7.5 and E4OD. I was towing my Jeep and trailer out for the weekend a few months back (its been parked since) and heard some noise coming from the trailer. So at a stop light I put it in park with the engine running for a second, went to put it back into drive and it hasn't gone back into drive since. Reverse works perfectly. Fortunately I was able to back up onto the center divide, unload my Jeep and back the truck onto the trailer and tow home with my buddies Chevy. Anyways, its been dead since. Where I can start to look? None of the forward gears work at all.
View 13 RepliesThe other day I was leaving my house. I started the car and heard a quick, loud chirp. That was the only noise it made so I continued to leave. I rolled out of my driveway and proceeded to put it in drive and found myself rolling backwards. I tried every forward shift, kicked on the 4x4 and continued to roll backwards. I thought reverse worked but found that it wasn't engaging either. My question: is there anything I can look at before resorting to taking it to the tranny shop? I'm in school for automotive and am confident in my abilities to test solenoids and maybe even dropping the valve body to check that. Other than that, I lack the skill to pull the tranny myself and work on it.
View 3 RepliesThe 91 bonneville stopped having forward gears but was drove back in reverse about 4 miles, reverse appears to work fine does this thing need new transmission or is there an easier fix...
View 7 RepliesMy '87 Chevy S-10 transmission slips like mad in forward gears and I can't go everywhere in reverse. The truck is gaaged in southern Virginia about 60 miles from my home and is used on some country property. The local transmission shop wants $1600 to rebuild the trans. He says he used sturdier parts than the replacement GM parts. I'd like to fix the truck because it comes in handy and was my dad's old mode of transportation around the Va. countryside, so it has sentimental value.
View 3 RepliesLast night transmission in my beloved '89 Caprice Wagon let go, it slips completely in all the forward gears. I was coming down a long hill using low gear for several minutes and when I put it back into OD at the bottom it seemed to skip a little but it was still making power well enough. I got off the freeway at my exit and stopped at a red light, when the light changed I was revving high but barely creeping through the intersection. I pulled over and this is what I figured out:-All the forward gears make essentially no power any more.-Reverse seems to work normally.-The fluid is at a normal level and not discolored or burnt smelling.
I don't know if this is related or just an amazing coincidence but the water pump also seems to have blown the gasket at the same time. I must have just happened within a few minutes of me pulling over because there was still a ton of coolant left and the temp was still in the normal range. I don't see how they're related but, like I said, the timing is too coincidental. Earlier this week but just a few miles ago I also topped the power steering fluid and oil.
It's a 200-R4 transmission, is it toast? Why does reverse work but all the forward gears slip completely? Is the water pump just a red herring? I did drive the rest of the way home in reverse.
I'm having trouble with the automatic transmission in my 04' Elantra, it acted like the speed sensor was failing, but later the same day it lost all gears, forward and reverse. after turning the car off and sitting a while I started it back up and had gears again, but the trany is making noise. Fluid level is ok.
View 3 RepliesI recently bought a 2001 Sante Fe 4X4, (my first Hyundai), that has transmission issues. It has about 135,000 miles on it. It will start easily, and go into Reverse just fine, but would not move in any forward gears. It would occasionally shudder a bit when put in 'drive', but only move forward a few inches. Recently, my mechanic backed it around, then decided to try it in forward again. This time it went forward a couple hundred feet, then quit moving forward. Do I need a new transmission, and if so, what vehicles use this same transmission? Or is there a sensor or valve that could be defective?
View 5 RepliesMy 2000 Subaru Outback (75,000 miles) runs well almost all of the time. Every so often, especially when the weather is cold and I have been making many short trips, the transmission will refuse to engage into any of the forward gears (Auto-Trans). It will do reverse, no trouble, but not the forward ones. It does not do this with any sort of regularity or consistency. I have had it checked by my mechanic and he said that although it did this it sounded fine and was not shifting roughly. Thinking it might be a fluid pressure problem, he put in fluid additive to soften the seals and this worked for about a week, then back to square one. I saw enough notes posted on other forums by other Subaru owners to know that this might be an issue with this year's model--maybe some sort of quirk that I hope can be fixed without a new trans.
View 5 RepliesI had been waiting to fix my explorer for a long time. The "previous owner" I will call him knowingly sold me a vehicle with a bad tranny without disclosing it... long story. To get to the important part, it had the common 2/3 shift flare. I dropped the pan, filter, and valve body, making sure to use a template and put the bolts where they go. Then i took the valve body to the work bench and replaced the gasket, which was surprisingly not blown. After more looking around, I realized the previous owner had already had the fix done. I tightened the EPC 1/4 turn and reassembled the tranny. When i started it, it was stuck in first gear. PRN21 all went forward (park just revved a bit due to the park lockout.)
I tore it back apart and found that the plunger on the side of the valve body was stuck in the 1st gear position. I pushed it back out and cleaned it up so it moved freely. Then I reassembled the tranny using new fluid again.
After that the tranny was stuck in neutral. I dropped the pan again today, and tightened the valve body bolts and made sure my solenoids are tight. Filled it back up slowly with the engine running. It shifted into gear for a second (tried to go forward while it was in reverse though). Then it was again stuck in neutral in all the gears again.