E4OD Major Issue
Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
E4OD Major Issue
Hey guys, a new problem with my truck yet again. It drove nice for a few days after it getting it back from the dealer but now I'm starting to have a new issue. I hooked up my new trailer light connector and brake controller the other day and it was fine. 2 days after I installed it now whenever the truck sits overnight and I start it in the morning the truck lurches forward and stalls when put in drive if I don't let it sit for at least 2 minutes. After that, it drives fine for the rest of the day no matter how many times I shut it off and start it again but once it sits overnight it does the same thing the next morning. I know this is because the torque converter is locked but why would it remain locked when I apply the brake and shift into drive? I also tried removing all my new trailer wiring and erasing the KAM but this has not helped the problem. Shifts fine while driving also. Best guesses as right now it is in at the dealer getting looked at since it drove fine before they took the tranny out? They tried selling me a new tranny but little did they know that the tranny they pulled is a new Ford reman with less than 2000 miles on it.
Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
I checked this and it seems full to me, the fluid is so light it's hard to tell but its definitely on the stick. The dealer claims it needs a new tranny but I highly doubt that since it has a fresh rebuild in less than 1500 miles ago.
Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
Yes, and I also checked it after sitting over night to see if it was in the cold range as well.
Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
That made me laugh a little. Do you think it could be the solenoid pack or is it not likely? Maybe drop the pan and fill it myself and put a new filter in? Or should I take it to a tranny shop?
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
How could the solenoid body cause this? I can think of one possible way. If the EPC (Electronic Pressure Control) solenoid fails to high pressure this could cause low pressure in the torque converter at idle. If this has happened there will be a code stored in memory to tell you. If the code isn't there then the solenoid body did not cause this.
I don't know if you should take it to a shop or not. If you're thinking of randomly changing parts hoping to fix this I can tell you it will be WAY cheaper to take it to someone that knows how to diagnose this.
I don't know if you should take it to a shop or not. If you're thinking of randomly changing parts hoping to fix this I can tell you it will be WAY cheaper to take it to someone that knows how to diagnose this.
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Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
How could the solenoid body cause this? I can think of one possible way. If the EPC (Electronic Pressure Control) solenoid fails to high pressure this could cause low pressure in the torque converter at idle. If this has happened there will be a code stored in memory to tell you. If the code isn't there then the solenoid body did not cause this.
I don't know if you should take it to a shop or not. If you're thinking of randomly changing parts hoping to fix this I can tell you it will be WAY cheaper to take it to someone that knows how to diagnose this.
I don't know if you should take it to a shop or not. If you're thinking of randomly changing parts hoping to fix this I can tell you it will be WAY cheaper to take it to someone that knows how to diagnose this.
Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
I spoke with the dealer further and their reasoning for needing a new tranny is they claim the internal clutch packs are fried. To me this doesn't make sense because it drives perfectly fine. Also they are saying that the torque converter only fully locks in reverse on these transmissions which I know is not true which makes me highly doubt everything they have told me.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
The torque converter NEVER locks in reverse. There is a built in feature that hydraulically forces the torque converter to unlock in reverse. When it locks in the forward gears (and it can lock in each of the four forward gears) it fully locks. There is no partial lock capability in the E4OD.
I would trust these people as far as I could throw their building.
I would trust these people as far as I could throw their building.
Thread Starter
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Mountain Pass
Joined: Aug 2019
Posts: 190
Likes: 2
From: Racine County
The torque converter NEVER locks in reverse. There is a built in feature that hydraulically forces the torque converter to unlock in reverse. When it locks in the forward gears (and it can lock in each of the four forward gears) it fully locks. There is no partial lock capability in the E4OD.
I would trust these people as far as I could throw their building.
I would trust these people as far as I could throw their building.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
It is possible that it fell out, but I would expect that to cause problems hot, not cold.
Tomorrow morning check the ATF level BEFORE starting the engine. If it is WAY overfilled your problem is that the torque converter is draining back into the pan. It can take 1-2 minutes of idling to refill the converter.
Tomorrow morning check the ATF level BEFORE starting the engine. If it is WAY overfilled your problem is that the torque converter is draining back into the pan. It can take 1-2 minutes of idling to refill the converter.