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Re: Ford f250 E40D reliablility??
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Posted by Vern-MI on June 07, 2007 at 04:18:45 from (207.69.137.23):
In Reply to: Ford f250 E40D reliablility?? posted by jdemaris on June 06, 2007 at 18:37:15:
Sounds like you have answered your own question. You would be more comfortable with a GMC or Chevy powertrain so stick with that. I'm curious to know what happened to the E4OD in London when you had the major oil leak. Was it a cooler line or an oil seal or maybe the converter itself? Did the London shop rebuild the complete transmission. If they rebuilt the entire transmission did they do a good job or is that what you are fighting now? One poorly installed thrust washer can generate debris and cause a lot of problems a few thousand miles later. A diesel engine has very high torsionals that must be absorbed by the transmission. When the transmission has a lockup converter there must be a damper similar to a manual clutch damper to absord those torsionals. The E4OD uses a long travel damper to do just that. When the turbine and damper rotate relative to the converter front cover under those high torsionals and a lugging condition the torsional damper travels some 45 degrees and the springs and balls in the damper generate wear particles. The turbine to front cover thrust washer is also under high stress at that condition. The converter ballons so much that the front cover pushes up against the crankshaft bolts and the impression of the bolts can be seen in the converter cover. Ford made several iterations of the front cover and thrust washer design before they got it right. The newer E4OD's were bullet proof. I think they have replaced that trans with a new 4R110 or 1100 Ft.Lb. transmission. For what it's worth. My son has an 02' F250 that he pulls a twin axle construction trailer with. He beats the snot out of that one and it is the best transmission he has ever had but he has had it only about 140,000 miles so far. He is rough on trucks and his throttle has two positions, idle and full.
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