E4OD issues help needed
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E4OD issues help needed
Ok so heres my first post to this forum. My truck is a 95 manufacture date 6/95 if its needed 2 wheel drive f350 with the 7.3. lately ive been having some issues with the transmission stalling when it comes to a stop and not going anywhere in drive when at a stop it will drive as long as you take off in 2nd. so i decided to do a good flush on it drained the tconverter flushed lines changed pan and filter to a deep pan. after doing this the truck very rarely wants to stall at a stop but still requires to be put in second to take off. so i hooked up my launch maximus through matco and found that while driving my tconverter lockup solenoid never actuates even when in 4th at 70+ mph as well as my coast clutch solenoid only actuates when slowing down if i turn od off all other solenoids seem to be turning on and off in the right sequence per gear. i have already fixed connecter at mlps so i doubt thats the issue. plus the tranny shifts great so should i try putting a new solenoid pack in it and what is causing my truck to not take off in drive is it a sticky ball or valve.
any help is much appreciated
any help is much appreciated
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
Your low roller clutch has failed. That's a one way clutch that is now a two way clutch. The only way to fix this is to remove the trans, tear it down, and replace the low roller.
Your torque converter clutch solenoid never activating is an unrelated problem. What you have described for the coast clutch solenoid is how it is supposed to work.
Your torque converter clutch solenoid never activating is an unrelated problem. What you have described for the coast clutch solenoid is how it is supposed to work.
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Your low roller clutch has failed. That's a one way clutch that is now a two way clutch. The only way to fix this is to remove the trans, tear it down, and replace the low roller.
Your torque converter clutch solenoid never activating is an unrelated problem. What you have described for the coast clutch solenoid is how it is supposed to work.
Your torque converter clutch solenoid never activating is an unrelated problem. What you have described for the coast clutch solenoid is how it is supposed to work.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
It won't hurt anything else. You can drive it like this.
I don't know what's causing the torque converter clutch solenoid to not activate. It could be many things, from a bad third brake light to a defective solenoid.
You are mistaken about the coast clutch solenoid. It is working as designed.
I don't know what's causing the torque converter clutch solenoid to not activate. It could be many things, from a bad third brake light to a defective solenoid.
You are mistaken about the coast clutch solenoid. It is working as designed.
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It won't hurt anything else. You can drive it like this.
I don't know what's causing the torque converter clutch solenoid to not activate. It could be many things, from a bad third brake light to a defective solenoid.
You are mistaken about the coast clutch solenoid. It is working as designed.
I don't know what's causing the torque converter clutch solenoid to not activate. It could be many things, from a bad third brake light to a defective solenoid.
You are mistaken about the coast clutch solenoid. It is working as designed.
would you mind explaining when the coast clutch solenoid should and should not be active because now the solenoid stays active from stop till roughly 40 mph or so.
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sorry for all the questions im not very experienced with the inner workings of automatic transmissions
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,730
Likes: 2,658
From: SE Florida
That doesn't make any sense. I do not know why the coast clutch solenoid would be on.
All the coast clutch can do in that case is back up the overdrive one way clutch. The one way will still hold most of the torque. If it is slipping then it's toast.
All the coast clutch can do in that case is back up the overdrive one way clutch. The one way will still hold most of the torque. If it is slipping then it's toast.
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im also going to rescan the truck here in a min to see if its still on and do you know of a way to disable the coast clutch solenoid just for diagnostic purposes.
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