I recently grabbed a 92 f250 supercab 4x4 with e4od. This trans is slower to shift into reverse than drive. Can anyone tell me if this is normal/common or a problem. Fluid looks good.

Also the shift pattern is totally new to me. It starts out in first with the tc unlocked, shifts to second, then under load the tc will lock in second (I understand this is normal and I like it), then when shifting to third the tc locks immediately.
I would expect it to shift without lockup then lock at a little higher speed.(thats what the 47re behind my cummins dodge does) Is this a warning sign? All the shifts are clean and if the third gear and overdrive behavior was more conventional I would consider this a great trans. Using the tc to split gears is definitely an advantage over the 47re. Currently the rpm drop going immediately into lockup is to much too keep it in the power range.

Thanks for any and all advice.

 

Check out the Throttle Position Sensor adjustment. Slip a paper clip into the terminal block along side the middle wire to hook up a voltage meter. Positve lead to wire, negative to battery. Now with power on, engine off, idle position you should read 1.05 to 1.1 volts, then at wide open throttle it should read 3.8 but not more than 4.3 volts. Adjust to get the lower voltage at idle. This helped "normalize" my shift patterns quite a bit, but basically I have the same thing with my transmission. I've learned to manually pop it out of overdrive with the button on the shift lever to get the rpms up into a power range before bogging down going up hill in OD.

 

Many of my posts on this forum are about my E4OD. I'm no tranny specialist, but I've had my tranny rebuilt 3 times and learned as much as possible along the way. Two weeks after the last rebuild I had the same problem with reverse as you are having. I called up the owner of the tranny shop and he had me bring back the truck. This rebuild was a full build up using every over engineered part I could get on it, so I didn't really know what could be wrong. Lucky for me the owner stood by his warranty and fixed it... it turned out to be a warped transmission case! He did all the work and even bought the replacement case under warranty! If you ever need a Colorado Transmission shop go to All Area Trasmission and ask for Jeff! I sure hope you get your transmission figured out soon and without spending a lot of money. I can't tell you hard it was to keep this truck because of the transmission. All I can say is do your research about this transmission and then start talking to everyone in your area about transmission guys. And then go and talk to them. These transmissions have been around for a while and the problems -- as well as the solutions -- are well known to the folks that like working on them.

Here's the BEST article I've found on a full build up of this transmission http://www.fourwheeler.com/projectbu...ssion_rebuild/

The other important company for this transmission is ATS - If I would of known about this company when I first had transmission problems I would went with them.. and probably saved a few thousand bucks. http://www.atsdiesel.com/atswebsite/...nsmissions.asp

good luck

bart

 

I just had the same problem.... Turned out to be a bad valve in the valve body.... It cost me 600.00 at the shop. And I still have a t/c un/lock problem! Good luck.