E4OD delayed engagement
Thread Starter
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6th Gear
Joined: Dec 2025
Posts: 6
Likes: 1
E4OD delayed engagement
When putting my 96 bronco into drive it has about a 5-6 delay before engaging and have to rev it up, once its engaged it dosnt feel like its slipping and will pull its own weight fine, checked line pressure and was at 60psi cold, went up to 120psi when revving up, acts like the fluid level is low but level is full and fluid is red and does not smell burnt, leaning towards a bad epc or filter plugged, any other ideas?, i know there's a guy named Mark kovalski that is pretty smart on these.
Last edited by Jh0892310; Dec 2, 2025 at 03:51 PM.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,732
Likes: 2,661
From: SE Florida
If the EPC were bad, or the filter were plugged, you would have very low or no line pressure. And the only way the filter will get plugged is if the transmission has self destructed. I don't think either one is your problem. I'm guessing you have a bad seal in the forward clutch.
What is the pressure doing when it won't engage?
What is the pressure doing when it won't engage?
Thread Starter
|
6th Gear
Joined: Dec 2025
Posts: 6
Likes: 1
If the EPC were bad, or the filter were plugged, you would have very low or no line pressure. And the only way the filter will get plugged is if the transmission has self destructed. I don't think either one is your problem. I'm guessing you have a bad seal in the forward clutch.
What is the pressure doing when it won't engage?
What is the pressure doing when it won't engage?
Thread Starter
|
6th Gear
Joined: Dec 2025
Posts: 6
Likes: 1
If the EPC were bad, or the filter were plugged, you would have very low or no line pressure. And the only way the filter will get plugged is if the transmission has self destructed. I don't think either one is your problem. I'm guessing you have a bad seal in the forward clutch.
What is the pressure doing when it won't engage?
What is the pressure doing when it won't engage?
Thread Starter
|
6th Gear
Joined: Dec 2025
Posts: 6
Likes: 1
If the EPC were bad, or the filter were plugged, you would have very low or no line pressure. And the only way the filter will get plugged is if the transmission has self destructed. I don't think either one is your problem. I'm guessing you have a bad seal in the forward clutch.
What is the pressure doing when it won't engage?
What is the pressure doing when it won't engage?
Thread Starter
|
6th Gear
Joined: Dec 2025
Posts: 6
Likes: 1
thank you a bunch!!, going to try replacing the solenoid pack due to the low and erratic readings, filter as I had a similar issue before except it set a fault for the solenoid pack and I replaced it with a junkyard one with unknown mileage, the trans has about 150k on a complete overhaul.
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Thread Starter
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6th Gear
Joined: Dec 2025
Posts: 6
Likes: 1
*update*, after replacing the solenoid pack, filter/fluid the issue went away, however I fully believe the filter seal was bad as when I dropped the pan the filter just fell right out with the pan so I believe the pump was sucking air.
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