I have a 1999 F350 with 7.3L diesel and auto trans. The rear main seal started to leak a bit. I checked and it was not the HPOP leaking instead. I took it to a local (non-Ford) shop and he concurred that it was the rear main seal. I had him replace it and he used a brand of seal from O-Reilly"s that he said was made by Fel-Pro. The new seal leaked. He pulled the tranny again and it appeared that the seal was leaking between the outer seal ring and the metal housing that holds the seal in place. He said both he and the O-Reilly"s manager agreed the seal was defective. He replaced the seal the second time with another seal of the same brand. It leaked and again he felt the seal was defective. The third time he replaced the seal with a genuine Ford seal that installed with a sleeve over the crank. About 50 miles on the truck and it appears that it is STILL leaking.
He said that the case may be over pressurizing due to a plugged vent on the valve cover and was supposed to check it, but it does not appear that he did so.
Anyone have any ideas why this could be happening? I really don"t think it is shoddy work. The guy has stood behind his work and not charged anything other than the initial bill.
Any help would be greatly appreciated. I am at a loss and quite frustrated.
Thanks, Tim
He said that the case may be over pressurizing due to a plugged vent on the valve cover and was supposed to check it, but it does not appear that he did so.
Anyone have any ideas why this could be happening? I really don"t think it is shoddy work. The guy has stood behind his work and not charged anything other than the initial bill.
Any help would be greatly appreciated. I am at a loss and quite frustrated.
Thanks, Tim