My 1995 F250 4x4 began shifting HARD, Like a C6, The Overdrive Light was flashing. There was no noise or driveability problems. I took it to the Ford Dealer immediately, within 20 miles, and they diagnosed a blown Torque Converter? They recommended a $2950.00 rebuild with updated Ford Parts? The Truck has 89K miles and has never towed anything. I have a 1000 LBS camper that I use a lot. The Transmission Fluid has been changed 3 times. I feel they have misdiagnosed this problem and are gouging me. Any thoughts or help would be appreciated.
Thanks,

 

It will take some research on someone's part. Determin the build date from the #s on your tranny and the build date of your truck to determine if your tranny has the updates. Ford updated that tranny in late '94 if memory serves me right. Get all the TSBs that pretain to the E4OD; they will tell you what the updates are. The updated unit is improved. $2900. sounds like they might be trying to gouge a bit. Rebuilds for the E4OD "ain't cheep" but that sounds a little high. Think Jasper sells a rebuilt unit for $1700. Search for E4OD using any search engine and educate yourself. Much luck, ray

 

Hi
I'd take it to a reputable shop that can scan the PCM for codes. Looking specifically for a P1728, it is a "slip code" for the TC. It usually is accompanied by a "off" lite flashing.
Did the truck stall at all in Reverse or Low?
If so, then the trans is shot and needs to be replaced, the TC and front pump have died.
Next, this you can do yourself, get under the truck, look at the drivers side of the trans, unplug the lever position sensor (it's behind where the cable hooks up) and check for water intrusion, (if any water, or moisture, replace it at once) corroded terminals, etc. If so, replace it and remove each terminal from the connector one at a time and clean them.
Check your reverse lights (make sure fuse is good) and if they aren't on with a good fuse, that's a sure fire way to tell that the sensor is shot.
When this sensor goes bad the PCM doesn't know what gear you have selected, so it goes to full max line pressure and HARD shifts, erratic TC engagement, loss of drive usually below 30mph until a stop. The "off" light sometimes will or won't flash. This sensor will also code.
If it ends up being the trans, REPLACE the coolers, the external one and the radiator (the cooler is in there and not replaceable). E4s are notorious for clogging the coolers with TC debris.

 

>It will take some research on someone's
>part. Determin the build date from
>the #s on your tranny and
>the build date of your truck
>to determine if your tranny has
>the updates. Ford updated that tranny
>in late '94 if memory serves
>me right. Get all the TSBs
I had the same problem. It turns out that around the master cylinder area are 2 tranny sensors. They had gone out, atleast one of them did. It was easier to replace both for about $300. Solved the problem for me.

 

 

ok, my 92 350 dually is flashing lights, shifting hard, and slipping on the torque converter w/ over 200,000 miles. what sensors are you talking about by the master cylinder? should the shift selector switch be replaced?

 

i'm with you...your dealer is probally jumping to conclusions. check my thread dated 9/28/04 ( p1728, trans slipping) i explain what my trk is doing. we are still checking the trans. my trans had "0" metal in the oil pan or on the magnet and no clutch material laying around. BUT everyone wants to condem the torque converter and front pump. i'll update my thread as i get new info or find the problem. hang in there!

 

i would leave the front pump out of it! yes the lock up clutch in the converter is slipping ,now wether the clutch is bad or what ever controls the lockup has issues i don't know. "FEDEXTECH"...do you work for fedex? assuming so, when the jasper dude comes in to the truck shop for his monthly visit, pick his brain ! he can tell you a lot more. BTW, i picked up a jasper rebuilt E4OD out of a 89 ford van for $65.00 at the local U-WRENCH-IT... Before installing it i will definately install a shift kit...a $1900+core trans!

 

The guys at the dealerships seem to think money is no object and actual diagnosis of a problem is a thing of the past. I took my '95 Ford van to the dealership when it started shifting hard from 1st to 2nd. Their plan was to replace everything related to 1st and 2nd and the estimate was $1100.00!!! This was out of warranty. I ended up taking it to a mom and pop and they found that my trouble was caused by a $3.00 spring that had broken in the transmission. My troubles were solved for $3.00 and the cost of a transmission service!!! To make it worse, the guy at the mom and pop told me that there was a Ford technical bulliten out about my specific problem. That was the end of my opinion that the dealership was the place to take my vehicle unless, that is, it's still under factory warranty.

Jeff

 

well you have a dealership that charges $80-$100 per hour, but the mechanic only makes $15-$25 per hour supplying his own tools! WTF is wrong with that picture???

 

If the torque converter is the culprit I would replace the trans cooler, flush the cooler lines, and yes have the trans rebuilt, not just flushed. Many transes have been ruined from the metal pieces from a shelled t/c going through a trans. Three of my own have done this. I also would not settle for a Ford rebuild. That price quote is a little high especially considering the quality of a Ford factory rebuild. I would go to a aftermarket shop.

 

Not sure if problem i am closing in on is same or not...
When speedo not working (always, really), it shifts late and hard. Actron code reader shows code 452 (VSS). Getting ready to ohm out harness from sensor on rear axle.

 

yup, i'd say your headed in the right direction...check vss for metal buildup.

 

you can pull the vss right from the rear axle, wipe it off and reinstall. If you get a zss code, 8 of 10 tmes, this actually works for the next 50, 000 miles.......

 

I have a 97 f350 with the E4OD and it's shifting hard with the overdrive light on, last time I checked it had 9 codes, but I replaced the neutral safety switch/TR Sensor, The AP Sensor, and the VSS I'm pretty sure is working fine.(speedometer works fine)It seems to shift harder from 1st to 2nd but I'm not positive, I think it's hard in all the gears. Any ideas besides what I've done? I have to recheck the codes at my buddy's shop. I'm also pretty sure it's something electrical, a sensor or something, so if anyone has any possible ideas about any stupid little thing that could be it. It probably is, and I really appreciate it if you'd let me know. Thanks!