Transmission Problem
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Senior User
Joined: Oct 2002
Posts: 437
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From: Fayetteville (Atlanta) GA
Transmission Problem
4R100 Transmission Problem
2000 F-250 V-10 4x4 with 82,675 miles on it. On the interstate yesterday traveling around 55 MPH unload I went to pass a semi. Pressed accelerator truck downshifted out of OD and accelerated normally. Pressed accelerator further, truck downshifted again, transmission seemed to be slipping (nothing engaged) lost all forward acceleration and truck began coasting. RPM quickly jumped up to 4,000 and engine began to miss. (Believe I hit the rev. limiter.) Backed off accelerator and everything worked normal again. Tried it again and the same thing happened. Towed a 4,000 pound car on a 2,000 pound trailer Sunday and everything worked great.
Fluid and filter changed at 40,000, with no signs of metal or sludge in the pan. I run a aux. Hayden 679 cooler after the factory air to oil cooler. I also have a trans temp gauge that has never seen temps above 185 degrees.
Any ideas ? This don’t sound good.
Mark
2000 F-250 V-10 4x4 with 82,675 miles on it. On the interstate yesterday traveling around 55 MPH unload I went to pass a semi. Pressed accelerator truck downshifted out of OD and accelerated normally. Pressed accelerator further, truck downshifted again, transmission seemed to be slipping (nothing engaged) lost all forward acceleration and truck began coasting. RPM quickly jumped up to 4,000 and engine began to miss. (Believe I hit the rev. limiter.) Backed off accelerator and everything worked normal again. Tried it again and the same thing happened. Towed a 4,000 pound car on a 2,000 pound trailer Sunday and everything worked great.
Fluid and filter changed at 40,000, with no signs of metal or sludge in the pan. I run a aux. Hayden 679 cooler after the factory air to oil cooler. I also have a trans temp gauge that has never seen temps above 185 degrees.
Any ideas ? This don’t sound good.
Mark
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Joined: Oct 2002
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From: SLC
Transmission Problem
So the truck still has basically a normal range of gears excpet when trying to dowshift to pass?? Did I read you right? Sounds like there is some slipping going on. Has it done it again?
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Joined: Oct 2002
Posts: 221
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From: SLC
Transmission Problem
Originally posted by GAV10
Correct....only does it when downshifting to pass. Yes....did it again on the way to work today. I can duplicate it at will any time.
Mark
Correct....only does it when downshifting to pass. Yes....did it again on the way to work today. I can duplicate it at will any time.
Mark
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Senior User
Joined: Oct 2002
Posts: 437
Likes: 3
From: Fayetteville (Atlanta) GA
Transmission Problem
Update: Drained the fluid last night and dropped the pan. Fluid was nice and clean, no odor, did not show any signs of overheating. The pan was also clean, no metal, sludge, etc. I did notice the bellhousing slightly damp. Removed the drain plug on the bell housing and found evidence of a small fluid leak. Also, the truck had been sitting for a hour. I could touch the exhaust pipes with no problem, but the torque converter was very hot to the touch. So does this mean the torque converter is the problem?
On the way to work today did the same thing. I can make it slip by downshifting.
Any transmission technicians out there ?
Mark
On the way to work today did the same thing. I can make it slip by downshifting.
Any transmission technicians out there ?
Mark
