Like what are known fail points? Especially when towing very heavy loads. I've wondered if they have front seal blow out issues like some automatics have been known for etc.
Also are the solenoids in the trans pwm type or direct dc ?

 

Howdy,

The guy that rebuilt mine told me that a whole host of 90's Ford transmissions had front seal problems but the problems were mainly the defective seals when once replaced, solved the problem. He also told me that built right, the E4OD is as good as any of them.

Mine was in a 1994 F450 and the previous owner told me that it leaked for a long time. It wasn't excessive, just a nuisance. He routinely operated with a 20,000lb GCVW and it never failed him. That's why I chose it for my 55 F600

Regards,

Rick

 

The shift solenoids are on/off. So is the torque converter clutch control valve and the coast clutch solenoid. The pressure control solenoid is a variable force solenoid, it's pressure output is proportional to current. None of the solenoids are pulse width modulated or direct control.

 

Howdy Mark,

Do you happen to know if the later 4R100 dipstick (press-IN) fill-tube will fit the E4OD?

 

No, I don't know. My guess is that it will fit, but that's a guess.

 

Thanks, I would like to assume that there wasn't a huge difference in things like that since there was no real reason to change it!

I guess I'll just buy one of them and see if I can press it into the hole!

 

Thank you guys for the info. Years ago when I had the transmission out to do an engine change the torque converter looked like it was new since it was painted blue, and fairly clean so I just left it as is. So far no problems. The reason I asked about the solenoids is because I read on here some place about a guy wiring in a switch to activate the TC clutch, I know that would be a no no with PWM solenoids, anyway I liked his idea to do that.

 

Why would it be a no-no with PWM solenoids? I don't know of any reason why it wouldn't work. I've done it myself with a PWM.

 

I was under the impression that they were much lower resistance than the non pwm ones. That means direct constant 12v current would heat them up and burn them out. I don't know that for sure. But I did find out that yes they are non pwm for 96 E4OD. So direct connection should be just fine.