E40D Riddle... Looking for Solution

[TUFFTRKN]

Ok, So here goes it... I have a 95 Bronco with a 351 W Fuel Injected and an
E40D Auto Tranny... First thing that happened was the Spedometer started jumping... So of course, the tranny did'nt know where to shift right. Then the spedometer just quit. Now, I have replaced the speed sensor in the rear end twice, the spedometer, and the neutral saftey sensor on the side of the tranny. I can reset the computer and it justs goes right back on after the first drive. It runs out down the road once you get it going. Lots of power off the line, but you have to let off the gas to tell it when to shift. The tranny fluid is clean, doesnt smell burnt and no metal shavings at all. I am at a loss with what to do. I dont believe that my tranny is bad. I dont however know where to go from here. I miss my bronco so much and all it is doing is sitting there and rotting. Any ideas or suggestions would be greatly appreciated!!! Thanks!!

ok.. new stuff everyone.. Thanks to all so far and I finally have what everyone has been asking for. So, first off, my ABS light is always on.. 2nd, my OD light on the shifter flashes constantly, 3rd it shifts hard in all gears, none more than the other. 3rd, Here are the codes... 33,24,52 Anything else I can do let me know and hope someone can help me from here.. Thanks a million everyone!

[stangmata]

click the E4OD diagnosis link in my signature.

[sackman9975]

Is the ABS light on (I imagine it is)? Did you pull codes? After you replaced the speed sensor, did it work for a short time or not at all?

[thePUNISHER]

which gear delays shift ? 2nd?

[TUFFTRKN]

Ok... I had to go jump start it and drive it to remember everything. I have been battleing this for almost 2 years, with no answers, so I parked it. Yes, the ABS light is on. Also, it shifts hard in all gears, it really depends on when you let off the gas and tell it to shift. if you just keep your foot on the gas then it will darn near rip your head off its shoulders. Also, when the computer is reset, as it was today, then all looks fine, but the ABS light. But after the first shift the OD off light on the shifter starts flashing. And, no I did not push it. It justs starts flashing after it shifts for the first time.

[thePUNISHER]

Originally Posted by TUFFTRKN

Ok... I had to go jump start it and drive it to remember everything. I have been battleing this for almost 2 years, with no answers, so I parked it. Yes, the ABS light is on. Also, it shifts hard in all gears, it really depends on when you let off the gas and tell it to shift. if you just keep your foot on the gas then it will darn near rip your head off its shoulders. Also, when the computer is reset, as it was today, then all looks fine, but the ABS light. But after the first shift the OD off light on the shifter starts flashing. And, no I did not push it. It justs starts flashing after it shifts for the first time.

ok good get us some codes. there is a trans fault code stored.....it may be speed senser related.....

[stangmata]

If the OD light is flashing, pull codes again.

[TUFFTRKN]

I will more than happily pull codes, however, it will have to wait until tuesday when I go to Great Falls. I live an hour away from civilization. I dont have on OBD 2 code reader and so I dont know how else to pull codes. If there is another way, let me know. thanks and talk to you about the codes next week if not sooner.

[sackman9975]

Originally Posted by TUFFTRKN

Ok, So here goes it... I have a 95 Bronco.....

Originally Posted by TUFFTRKN

I dont have on OBD 2 code reader and so I dont know how else to pull codes.

You don't have OBD2 because you have a 95. You have OBD1.

96 was the first year of the OBD2 system.

Originally Posted by TUFFTRKN

If there is another way, let me know. thanks and talk to you about the codes next week if not sooner.

Click here to learn how to pull codes with a paperclip or a piece of wire.

[miesk5]

yo
I had the exact same problem in our 96 last year;
The ONLY way to DIY properly is to Read the Codes as suggested by our pals here and then I strongly suggest you buy a Ford Bronco Electrical and Vacuum Troubleshooting Manual (EVTM), Powertrain Controls and Emission Diagnosis Manual (PCED), Service Manual CD from Steve83 or E Bay or Fireguy50 (if he has one for the 95)


The Pin-Point Testing for any Codes you find will save you $ and Time.

Althought the ABS (also ref to as da VSS or DSS) Sensor/connector or the 8.8's Tone Ring are often the problem in most instances of a "simple" VSS Code, other thAngs are cropping up such as my 96's burnt-out 4WABS Module and other owners' wiring shorts or opens as well as a bad PSOM or in 94's and some early 95s, an A pillar trim screw!
bad 4WABS Module:
btw here is one DIY test that can rule out a
PSOM Continuity Test Through 4WABS Module Connector in 93-96; "...jumper 14 to 21, & 39 to 22..." MIESK5 NOTE; See diagram. I did this on our 96; The 4WABS Module (also ref to as the Controller or ABS Computer) was toasted; 2 yard Controller's were also bad; NO RETURNS!
Source: by Steve83 (Steve, That dirty old truck) at FSB

[TUFFTRKN]

ok.. new stuff everyone.. Thanks to all so far and I finally have what everyone has been asking for. So, first off, my ABS light is always on.. 2nd, my OD light on the shifter flashes constantly, 3rd it shifts hard in all gears, none more than the other. 3rd, Here are the codes... 33,24,52 Anything else I can do let me know and hope someone can help me from here.. Thanks a million everyone!

[TUFFTRKN]

ok.. So after about 2 hours of reading on other peoples problems, I did more digging. I pulled the pan and all is VERY clean under there. Also, the filter was secure and clean. I inspected and all is good inside the tranny. Just had to make sure that the filter didnt come out. Although I dont think that would cause my spedometer not to work, I had to look anyways.

[stangmata]

They are three digit codes, not two digit.

332 - EGR valve opening not detected
452 - Computer detected an error in the VSS or PSOM signal during the last 80 warm-up cycles.

Sounds like a problem with your VSS.

[gunterelectric226]

On your 95 the codes should be 3 digits. Are you sure the codes are not 332 and 452? I do not have a list in front of me but the codes should definatly be 3 digits.


Good luck

[Shadofax]

Originally Posted by stangmata

They are three digit codes, not two digit.

332 - EGR valve opening not detected
452 - Computer detected an error in the VSS or PSOM signal during the last 80 warm-up cycles.

Sounds like a problem with your VSS.

yea, so the 452 is still pointing back to not getting a correct speed signal. Can you give us more info. about replacing the sensor and the speedo, i.e. you did this or the dealer? Why did you replace the sensor, what did you see? what about the toner ring that is integral to the sensor getting the correct reading, no chipped/broken teeth? Did you check the distance from the sensor to the toner? too much/too little and ANY sensor, good or bad can feed incorrect signals to the tranny. What about all the wiring from the sensor to wherever it goes?

[TUFFTRKN]

Ok... From the beginning. I will try to make this short. The spedometer started jumping. The shifting became somewhat troubled at that point. Then the spedometer and odometer quit altogether. Also the ABS light was on. I replaced the sensor in the pumpkin on the rearend. (speed sensor I believe) That did not fix any of the problems. So, I bought a whole new dash and put it in. (to replaced the Spedometer and Odometer units) That did not fix it. So, I bought the Neutral switch on the DriverSide of the tranny and replaced it and set it right so it started and reverse lights came on. that did not fix anything. So, bottom line right now is, It has no spedometer, odometer, the ABS light is on constant, It shifts into all gears, but not smothly at all, The OverDrive light on the shifter flashes all the time, and I have opened up the tranny and it is super clean. Not a problem in it. I hope this is enough to help. and, thanks for the corection on the codes. I wondered why the two digit read outs didnt look right. LOL
so, I didnt check distance when I took the sensor out and replaced it. I have checked all the wiring for cracks and dirt. I also did not check to see if any teeth were missing. Would that cause it to quit working all together, or would it work funky cause it was missing a tooth or two. Look, I can rebuild a motor, replace many many things and fix what I cant. But this whole electronic thing has me baffled. If someone would have asked me what I thought it was when it first started I would have told them that any day they were going to have to come get me on the side of the road cause my tranny was almost gone. But I know different now. I just have no clue how to fix it. If there are things I need to check, you guys tell me and I can do it, no problem. I just dont know where to go from here. I do all my own work by the way. I dont take anything to our dealership. I toke this to them a while back after I knew it wasnt my tranny and they wanted to replace my tranny. I called them on it and they than said they couldnt and wouldnt spend the time to trace it for me. So, I would never go back to them. So, anything you can tell me is a step closer than where I am at now.

[Shadofax]

ok, so the problem is that you have been buying lots of stuff that could potentially fix the problem, without actually looking at the part to tell if it's an issue. The sensor for example, you bought one, that's fine. You looked at the toner ring? You measured distance from toner to sensor? Check the wires forward?

[TUFFTRKN]

Yes, I guess you are right. Buying parts on what different people said would fix it. I dont know what the distance should be in the rear end or even what to look for. Please let me know and first thing in the morning I will tear into it and see if that is the problem. I just want my bronco back!

[Shadofax]

I guess what I'd do at this point is first try and follow the wires to see if anything has happend somewhere forward. Next, Id recheck your sensor install, was it pushed all the way in and tightended properly? Next if you never did pull the diff cover, I guess it's time to do this. Buy gear oil and you get to have fresh fluid in there when you are done. Anyway, pull cover and inspect the toner ring. Any broken teeth? unusual wear at tooth ends? Up where your sensor comes through above the toner, there should be apx. 1mm of clearance. As I recall it can be as little as .8mm to as much as about 1.2mm. Yes, that is a small tolerance, which is why any dirt or obstruction up top that didn't allow the new sensor to fully seat could have caused you issues. If all this checks out 100% you've got to move on, I'd probably take it to my dealer at that point, since where the wires go and what to check next I wouldn't be certain.

I was going to post a pic of the toner/sensor on a custom install I did on a '78 D60 rear in mine but Supermotors is again not cooperating tonight.

Here's what you'll basically be looking at:

[john cooper]

before you tear into anything check your under hood fuse's you probably have a blown 10amp fuse.........that is what was wrong with my 1994 bronc