Join Date: Oct 2011
Feedback Score: 0 reviews
E4OD Shift Problems!!!!
I have a 1996 F-250 Crew cab. 7.3 Powerstroke with E4OD Tranny 4X4. Since I purchased truck about 2 years, when the speedometer reaches about 55mph the needle begins bouncing between 40 and 60 mph. As the speed of truck increases the bouncing continues but increases as well. I have not attempted to fix because it did not seem to affect the drivability of the truck. No other problems to note.
Please forgive my lack of knowing technical terms. Please bare with me!
About a week ago, the transmission started going into what I have been calling some sort of "safe mode", with no type of pattern or cause. And nothing that I do seems to "make" it do it. To explain: I may start my truck in the morning and drive all day with no problems whatsoever. The next morning, I may start the truck and by the time I get to the end of the driveway it has went into "safemode". To describe what I mean, it runs,drives and shifts perfect when it is first started. I will stop and when I go to take off again, it seems to almost instantly shift HARD into second and quickly into 3rd and then overdrive. After paying closer attention there have been times when at 25mph I am already in overdrive! Strangly enough, when I shove the accelerator down and "get on it" while it is in "safe mode", it seems to be better. Certainly not normal, but the RPM's will come up alot higher prior to shifting and shifting itself is much smoother. Again, not normal, but better! The only thing that will take the truck out of this mode is stopping and shutting the truck off for a few seconds. After starting the truck back up, it may go the rest of the day and not "act up" again. Or it may only go 5 min. and go right back in to "safe mode" and continue to do that for the rest of the day! I have had local auto parts store scan the computer three different time with no trouble codes showing. I have disconnected the batteries over night in an attempt to reset the ECM with no luck. Trans fluid is at normal level, normal color and does not have any type of burnt smell. Any help would be GREAT!!! I am desperate for at least a place to start trouble shooting! THANKS A TON!!!!