Dreaded 2001 4R100 Mechanical Diode
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Senior User
Joined: Nov 2000
Posts: 379
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From: Azle, TX
Dreaded 2001 4R100 Mechanical Diode
Well, the Expy with 130k miles on it had an issue going to 2nd gear. Did a ton of searches on this site, and from what everything pointed to was that I had bought the wrong year :P. Found chunks in the tranny pan. Tore the accumulator and valve body apart. It was clean. Decided to disassemble the transmission and found the broken mechanical diode 
. I'm going to buy the whole upgrade kit from PATC. It's listed for $211. Everything else looked good except for the OWC. All the clutches, etc. looked good. So I'm debating on what else I ought to change out before I put it all together. I'm poor, so I'm not going to be spending 1200 on a HD rebuild kit or anything. But if anyone knows of other places I can get this upgraded OWC assembly from, let me know.
. I'm going to buy the whole upgrade kit from PATC. It's listed for $211. Everything else looked good except for the OWC. All the clutches, etc. looked good. So I'm debating on what else I ought to change out before I put it all together. I'm poor, so I'm not going to be spending 1200 on a HD rebuild kit or anything. But if anyone knows of other places I can get this upgraded OWC assembly from, let me know.
Transmission Rebuilder
Joined: Jul 2008
Posts: 1,570
Likes: 63
From: North Georgia
I use a E40D drum when we get one in with a diode.
FORD E4OD 4R100 DIRECT DRUM 1995-1999 5 CLUTCH: eBay Motors (item 180321367755 end time Sep-08-10 10:20:01 PDT)
FORD E4OD 4R100 DIRECT DRUM 1995-1999 5 CLUTCH: eBay Motors (item 180321367755 end time Sep-08-10 10:20:01 PDT)
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01, 2001, 4r100, diode, disassemble, drum, duty, ford, im, mechanical, mechanucal, mechical, patc, super, transmission
