I let my brother borrow my truck, and it is now stuck in third. Unfortunately, i will never know what he did to it, but that isn't the point:

Basically, I have reverse and third.

it is a 1990 F-250 7.3L Diesel, with the E40-D [stock tranny] transmission. Would this be a problem within the tranny? Or...

Thankyou in advance

-Chris

 

ctsoth, will it shift to low gear with the shift lever in low?

 

Yesterday I replaced a fuse that was burnt out, that had nothing to do with my tranny.

Took it for a drive a few minutes ago, and everything works great. Which is both a good and bad thing.

1. I know my tranny isn't all gimped up.
2. I don't know what is wrong...

I am left wondering if I have a sensor or something on the way out... I don't know much about transmissions, or the E40D for that matter. I believe that it is electrically controlled, so could there be a "loose" wire or connection that would cause the transmission to loose its ability to shift.

When I first started the test drive, I of course had to back out of my parking spot. Then I put it into first gear so I could answer your question on whether or not the shift lever worked. Yesterday, it did not. But I wanted to make sure... Actually, it worked once yesterday, and then didn't work the secound time I tried it.

Anyways, When I put it into first I fealt the tranny shift twice, which would make sense coming from third gear, thru secound, and then landing on nice ol' first... She accelerates much better from first than she does from third...

lol, anyways, any ideas on what the problem may be? If you have any further questions, I would be more than delighted to do everything in my power to answer them...

Peace and God Bless

Stay Safe
God Bless
All the Best

-Christopher

 

The E4OD is an electronically controlled trans. There is a fuse that controls it.. I believe its fuse #5 in your fuse block under the drivers side of the dash. You have 3 electrical connections on the trans. The one on the left is a connector with 6 to 8 wires that connects to the "trans range sensor" or as some call it, The MLPS: manual lever position sensor. There is one on the rear of the trans where the speedo unit goes in, a small 2 wire connector. Then there is a connector on the right side, above the pan, behind a heat shield. this is the connector to the servo packages inside the transmission. These plugs are noted for melting from the heat of the exhaust and also oil will get in them from the trans. And if thats not enough to look at, the trans gets its info via the powertrain control module (PCM) Various sensors send signals to the PCM which in turn sends signals to the trans thru the plug to the servo packs. If any sensor is out of wack or a connection is lose or dirty it will foul up the trans. Find a tranny shop in your area that has an E4OD trans "break out" box. They can hook it up to your tranny and tell if it is in fact the transmission or a fault with the wiring. Good hunting and post back.

 

Similar problem with my dads 2001 F250 Lariat, which also has an E40D tranny. I know that E40Ds have had a bad reputation as far as reliablity travels. Ha, this is why I drive a Manual Tranny.