Tranny diode?
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Cost.
The gas engine trucks blew up the diode at 4600 RPM if the driver lifted his right foot just as the WOT 1-2 shift started, then put it right back on the floor. The person that discovered this was able to do it on 100% of the trucks he tried it on. That's why they left it in the diesels, they couldn't run 4600 RPM.
The gas engine trucks blew up the diode at 4600 RPM if the driver lifted his right foot just as the WOT 1-2 shift started, then put it right back on the floor. The person that discovered this was able to do it on 100% of the trucks he tried it on. That's why they left it in the diesels, they couldn't run 4600 RPM.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 24
From: Damon (South East Texas)
Sounds like Ford really should have "made good" on both the gas and diesel 4R100's. I don't have to worry about mine anymore. It's history!
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
So If I don't lift when on it, I could be good??? I have been told that the diode tranny can take a fair amount of abuse, just fails under just the right conditions. I have beaten the snot out of my truck both on the street and the strip. I can't figure it out.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I couldn't let up on the accelerator officer. It might blow my tranny.Actually, I think the letting off trick only works at 4,600 rpm's Mike. Sounds like the power/torque from a diesel also takes it's toll on the diode, but not in a repeatable method as with the gasser.
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mgmoore7
Excursion - King of SUVs
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Mar 8, 2010 02:18 PM
