E4OD Tranny went Nuts...
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Joined: Jan 2009
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E4OD Tranny went Nuts...
Okay, here goes. I picked up a 3K load on a 2K trailer and took off on a 150 mile trip. Five miles out the truck jumped out of gear. I pulled over and tried every gear. Nothing. I figured I did not get the transfer case back in 2HI. I pulled it back and reset the shifter into 2 Hi. The truck took off like nothing had happened. When I pulled it into the drive where I was delivering the load, the tranny acted like I had the clutch in. I pushed the throttle down and it engaged and ran and shifted normally.
On the return trip, the O/D cancel light began flashing. I pulled in to a parking lot and the tranny disengaged like before. Pushing down on the throttle re-engaged the transmission. I shut it down to see if I could get the light to reset. It did not. I checked the fluid and it was normal.
Up to this point, the temp never rose above 180 degrees. During this stop the temp went to 215 but dropped immediately when i got back on the road. It did however rise incrementally on the road. It got up to 220 degrees when I shut the truck down. After the truck cooled, I started it up and there was no flashing light. The trans was engaging normally as well.
This morning, I pulled the return line from the aux cooler and it flowed 2 quarts in 30-40 seconds. The fluid is reasonably clean. Not pristine, but reasonable.
What gives?
Aaron
On the return trip, the O/D cancel light began flashing. I pulled in to a parking lot and the tranny disengaged like before. Pushing down on the throttle re-engaged the transmission. I shut it down to see if I could get the light to reset. It did not. I checked the fluid and it was normal.
Up to this point, the temp never rose above 180 degrees. During this stop the temp went to 215 but dropped immediately when i got back on the road. It did however rise incrementally on the road. It got up to 220 degrees when I shut the truck down. After the truck cooled, I started it up and there was no flashing light. The trans was engaging normally as well.
This morning, I pulled the return line from the aux cooler and it flowed 2 quarts in 30-40 seconds. The fluid is reasonably clean. Not pristine, but reasonable.
What gives?
Aaron
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,739
Likes: 2,669
From: SE Florida
Sure sounds like something that needs the codes read to be able to diagnose. You need someone with a Ford specific scan tool, the generic readers the auto parts stores use won't read transmission codes.
