1996 4x2 E40D shifting problems please help!
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New User
Joined: Jan 2021
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I didn't replace any bushings when rebuilding. I will test the pressure. I didn't use assembly goo but I used transmission fluid for everything.
Logistics Pro
Joined: Aug 2014
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Maybe, just maybe it could be the EEC.
Does your old 1996 F-350 7.5L V8 E4OD solenoid pack have the DIODES in it? If it does, does your new pack have them?
Old style vs new style.
If your old pack has them, you need a solenoid pack with them.
If you use a solenoid pack without the diodes, you need an EEC that has them.
Using a solenoid pack without them when you need them, will cause EEC failure.
Also, some trans filters fall out, as they are pressed in.
Did you notice if your filter was in properly last time the pan came off?
Does your old 1996 F-350 7.5L V8 E4OD solenoid pack have the DIODES in it? If it does, does your new pack have them?
Old style vs new style.
If your old pack has them, you need a solenoid pack with them.
If you use a solenoid pack without the diodes, you need an EEC that has them.
Using a solenoid pack without them when you need them, will cause EEC failure.
Also, some trans filters fall out, as they are pressed in.
Did you notice if your filter was in properly last time the pan came off?
Thread Starter
|
New User
Joined: Jan 2021
Posts: 19
Likes: 0
Maybe, just maybe it could be the EEC.
Does your old 1996 F-350 7.5L V8 E4OD solenoid pack have the DIODES in it? If it does, does your new pack have them?
Old style vs new style.
If your old pack has them, you need a solenoid pack with them.
If you use a solenoid pack without the diodes, you need an EEC that has them.
Using a solenoid pack without them when you need them, will cause EEC failure.
Also, some trans filters fall out, as they are pressed in.
Did you notice if your filter was in properly last time the pan came off?
Does your old 1996 F-350 7.5L V8 E4OD solenoid pack have the DIODES in it? If it does, does your new pack have them?
Old style vs new style.
If your old pack has them, you need a solenoid pack with them.
If you use a solenoid pack without the diodes, you need an EEC that has them.
Using a solenoid pack without them when you need them, will cause EEC failure.
Also, some trans filters fall out, as they are pressed in.
Did you notice if your filter was in properly last time the pan came off?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,732
Likes: 2,661
From: SE Florida
No, that is totally opposite of what I would expect from low fluid.
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New User
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Okay I did the pressure test on the transmission and these are the results:
P: 60 psi
R: 30 psi
N: 30 psi
D: 60 psi
2: 60 psi
1: 60 psi
Could this indicate an internal leak like a seal in a piston or a leak in the valve body?
Also should there be ATF coming out the pressure port when it sat for a while and before turning it on?
and my ATF level reads way above full when the truck is turned off, is that normal?
P: 60 psi
R: 30 psi
N: 30 psi
D: 60 psi
2: 60 psi
1: 60 psi
Could this indicate an internal leak like a seal in a piston or a leak in the valve body?
Also should there be ATF coming out the pressure port when it sat for a while and before turning it on?
and my ATF level reads way above full when the truck is turned off, is that normal?
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New User
Joined: Jan 2021
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,732
Likes: 2,661
From: SE Florida
Reverse is very low. That indicates a leak in the reverse circuit. It could be a clutch seal, or something along the way to the clutch. I can't remember if reverse pressure goes through the feedbolts. If it does, a loose feedbolt could be the problem. The feedbolts are located between the valve body and the case.
Thread Starter
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New User
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Reverse is very low. That indicates a leak in the reverse circuit. It could be a clutch seal, or something along the way to the clutch. I can't remember if reverse pressure goes through the feedbolts. If it does, a loose feedbolt could be the problem. The feedbolts are located between the valve body and the case.
But the weird thing is when the fluid reads low reverse seemingly works with a slight delay instead of requiring higher rpms. I was going to try to fill the tranny to the line while cold and off to see if that yields a better result but I had to leave before that.
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