I'm lost on this e4od?
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I'm lost on this e4od?
My shifting has been erratic and sloppy since I got this truck close to a year ago. This past week installed new sensor in the rear-end (rabs?), new speed sensor on the tranny, tach sensor, and new FIPL and adjusted that to within spec both idle and wot. Now truck is shifting too hard and holding gears too long before it will change into next gear. If someone can help it sure would be appreciated because I'm lost at this point. I've gone from one extreme to the other on these gear changes.
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From: south jersey
what did you set the fipl too? try backing it off just a little bit. when i changed mine the shifts were really soft and it shifted too soon it was set around 1.2 so i changed it and set it to 1.4 at hit held the shift for way to long for me so i backed down a little at a time and right now i got it perfect but i forgot waht its set at lol.
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i had the same probs with my old e4od truck.the computer is going bad and or is bad.the computers for this tranny is about as bad as the tranny its self.the computer is located behind the driver kick panel behind the E-break.the panel will just pop off pull the insolation away and you'll see the computer.this operates the tranny only.a good tranny shop can test the computer.I wold BS you its not cheap to replace.i would aslo invest in a addon module like the banks transcomand.the price of the kit is a lot cheaper than a new tranny ever 100,000 miles.al the e4od is and over grown gas tranny.not good for a diesel
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From: Powell River B.C.
Have you checked the computer for any codes, with a OBD I code reader?? If you have altered the condition from one extreme to the other it sounds like an electrical problem, connector ?? Fluid level OK and filter- fluid been replaced reciently??
Last edited by KJLYPW; Apr 3, 2007 at 07:18 PM.
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From: Powell River B.C.
Also harsh shift may be a problem with the MLP maual lever position sensor, the manual talks about a test box, but diagram shows two wires, in and out, Resistance on the sensor should be as follows P-3770 to 4607 ohms: R- 1304-1593: N-660-807: D-361-442: 2-190-232: 1- 78-95 ohms. If out of range and cant be adjusted, change the MPL sensor. Sounds like the only one you haven't done! Good luck.
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Ok, I didn't know about an MLPS on this truck. Can you tell me where to find this sensor? I want to check all possible problems myself before I take it to a tranny shop. Must be paranoid but I just don't trust any shops nowadays. I never would have guessed an 89 could have that many sensors and computers.
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From: Campbell River, B.C.
Originally Posted by whatsparkplug
Ok, I didn't know about an MLPS on this truck. Can you tell me where to find this sensor? I want to check all possible problems myself before I take it to a tranny shop. Must be paranoid but I just don't trust any shops nowadays. I never would have guessed an 89 could have that many sensors and computers.
I believe the MLPS is located on the shifter arm on the driver's side of the transmission.
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From: Manitoba
While your at it........
Check all the trans electrical connections especially the one on the right side with the tin cover, remove the tin heat shield, remove the solenoid connector by pushing on the center tab and pulling up on the wire harness. To install push down until a click is heard. Always reinstall the tin heat shield.
Your looking for corroded, bent or missing pins and water etc.......
Check all the trans electrical connections especially the one on the right side with the tin cover, remove the tin heat shield, remove the solenoid connector by pushing on the center tab and pulling up on the wire harness. To install push down until a click is heard. Always reinstall the tin heat shield.
Your looking for corroded, bent or missing pins and water etc.......
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