94 f350 E4OD rebuilt W/shifting problems

[kevind95]

I have a 94 f350 with the e4od. The transmission doesn't shift properly unless i let up on the gas before each gear , then it shifts nice. The trany is totally rebuilt. My tranny guy is confident the trans mechanically sound he even took it back out and went through it again. I am on here just tring to get input to pass on to him . Below is info that I got from you guys earlier this year. He has made these adjustments . Do you have any other suggestions? I do appreciate the help as I do like the truck and I think we are close and with your help we might get there. $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ $$$$$$$$$ TRY THIS FIRST.....Get a OBD1 code reader....$30.00 Originally Posted by ford trans tech first ,read codes , on the idi 7.3 you have to hold the throttle at wide open before you start the test and during the test or you will recieve false fipl code , the cruise control servo will only affect the transmission if it is shorting out the speed signal circuit , you can simply unplug it to eliminate it , after that the most common cause is a speed sensor going intermittant or a flat spot in the fipl sensor this is a worn spot on the potentiometer that causes the voltage to fluctuate , but you need codes before replacing any parts now for the bad news , if it sets speed sensor code 29 replace the sensor in the differential . if the code returns then you probably have a bad PSOM / programable speedometer odometer module , on the 92 and later idi the speedometer module recieves the speed sensor signal first converts it then sends it on to the transmission control module so the speedometer can read normally but sends an erratic signal to the processor for transmission control , if it has a code 67 replace teh transmission range sensor on the shift lever on the left side of teh trans ----- Original Message ----- From: Kevin Dickey To: Kevin Dickey Sent: Thursday, January 03, 2008 12:16 PM Subject: F-350 possible problems SAVE....SAVE Does the speedo and tach work flawlessly..... have you ever reset the FIPL (fuel injection pump lever sensor. Check the connector in the pax side of the trans for corrosion......Most easy fix problems have to do with the vehicle speed sensor, the tach sensor, and most commonly the FIPL (fuel injector pump lever) adjustments. Tach or speedometer fixes are check wiring connections- replace sending units if defective, http://www.oilburners.net/forums/showthread.php?t=4134 is a link to an artical on how to set up / check the FIPL. If these don't seem to be the problem, then you need to have the trouble codes read. It wont hurt to check all connectors and grounds though-check for loose, dirty or corroded connectors. Fuel Injection Pump Lever (FIPL or TPS) Check and reset procedures. The FIPL is a fundamental part of the operating system of the E4OD transmission. It aids the Transmission Electronic Control Assembly in determining proper shift points in relation to throttle position and allows the computer to determine both WOT for downshifts and idle position for TC lock and unlock. Resetting or replacement of the FIPL can solve many of the problematic shifting issues with the E4OD trasmission mated to the 7.3L IDI's. Below are simplified procedures that can be used to adjust/reset the FIPL. Hook up the negative lead of the volt meter to the battery ground and the positiove lead to the center GY/W ( grey/white wire which is the FIPL signal wire, I use a paper clip up the side of the wire in the connector. The FIPL must be attached to the wiring harness. Engine low idle speed must be set to specs prior to adjusting the FIPL. Engine off key on........ With a warm engine, key on, engine off measure the voltage at the GY/W wire, if adjustment is required loosen either the bracket with bolts or just use the slack in the Torx screw holes. Now gently rotate the FIPL until you get some where between 1.05V and 1.1V. then tighten the torx screws or bolts which ever you loosened ensuring no movement of volt setting . Rotate the throttle lever to WOT see if you get 3.8 V but not more than 4.3 V. The FIPL mounting bracket can be moved but ensure it is centered for a good rotation. Any adjustment should be made by only rotating the FIPL. If a new FIPL is required, check tang engagement as you take off the old FIPL and then make sure that the tangs in the new FIPL engage the throttle lever properly. The closed throttle voltage: 1.1 V, .........wide open throttle voltage: minimum of 3.8 V but not more than 4.3 V.