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My wife drove to where I work today and told me the truck was leaking oil.. (2002 excursion with 7.3L Powerstroke) Upon further investigation I found that there was oil dripping from the bottom back of the engine. (flywheel cover area)
Anyone know if this is a rear main seal? (truck only has 17000 miles on it)
It will be a warrenty repair but I love to know what I am getting into at the dealer..
Check up in the valley first. When a leak occurs in the valley, it will puddle in the valley until it gets deep enough to run out the drain hole at the passengers side rear of the block, then run down inside the bell housing making it look like a rear seal leak. Or, you can take to the dealer and have them add some dye to the oil and check it with a black light.
Dealer said there is two o-rings near the back of the engine (somewhere, I have yet to investigate for myself) these o-rings will leak at some time, fill up the valley cover and then the oil will start weeping from the top rear of the engine making it appear like the rear main seal failed ... It took the dealer about 4-5 hours to fix..(warranty)
Probably the O-rings for the turbo pedistal. That turbo pedistal is not a very good design -- there should have been 4 bolts holding it to the pedistal instead of 2 and, if they were going to use an aluminum pedistal, they should have installed helicoils in the threaded holes. The turbo gets too much rocking action between the torquing up of the engine on its rubber motor mounts and the exhaust system bolted to it. Eventually that rocking action will cause the joint between the turbo and the pedistal to fail.
Boy...ya know I just changed this thing 6 mos ago when I put on the Banks sys.....I would hate to have to do all that work to get that sunna **** back out to change the frikken o rings....maybe it's magic oil and the leak will fix itself!!!
Huh, I have the banks kit, too and have just developed what I thought was a rear main seal leak. I thought that the leak was really slow for a rear main but planned to take it in next week. Anyone have an opinion on whether the dealer will handle this or should I take it to Banks?
You need to add some dye to the oil and check it with a black light to determine exactly where it is coming from (check the valley first to make sure it is not coming from there). If it is not coming from the valley, it is more likely to be a rear (or front) oil pan radius than the rear seal.
My 7.3 F-250 crew cab had a similar problem. Oil streaming from the area behind the oil pan, in front of the transmission, seemingly from inside the flywheel cover. There is a high pressure oil line up there somewhere that had "blown a plug" according to the dealer. I found a service bulletin that may be related:
Oil Leakage at 7.3 HP Oil Pump Fittings/Plug:
If oil leakage is detected at the HP oil pump hose fittings or passage plug (not the rear plate), the fittings/plug can be removed and resealed with o-rings from kit 2C3Z-9G804-AA. THe threads on the fitting/plug should be cleaned and the included Loctite sealer applied. Tighten the fittings/plug to 23-28 ft/lbs. The HP pump does not need to be removed to perform this procedure. Braodcast Message 3916.
The dealer fixed it for the $100 deductible on the power train warranty. They also (after some convincing) replaced the hood insullation which was completely oil soaked. Mine didn't leak before it failed. I would definitely have the dealer check it...I suspect the message above covers the problem.
It has been some time now but I guess I should let you all know what happened. I took the truck to banks and they said that there was a small oil leak at the butterfly valve pushrod actuator which I knew about. But they said this was very minor. the big problem was the oil pumping out of the blown o-rings at the base of the turbo. They fixed this and then wanted to charge me 200 dollars. They said that the problem was supposedly the pushrod and since they were in there they would just fix the o-rings with out asking. I was told by the diesel mech. at Ford that it was the pushrod so I didn't even take it to the original installer. Well, Banks said I should now pay them and then try to get my money back from the original installer. You can imagine what I told them at that point. I later found out that they would have had to pay the original installer to fix it anyway since it was a warranty issue. After a small amount of almost getting seriously pissed they gave me my keys and a complimentary shirt and I was on my way.STOCK O-RINGS SUCK!
Hey bud Oil was running down on mine too, I had my mechanic friend check it out. He replaced the rear main seal that's what we thought it was. My problem was the oil pressure line and the o rings connected to it. Turns out it wasn't so check the line and replaced it and the o rings and everything is great. So do the small repair first because the High Pressure Oil Line is SET AT 3,000 PSI! So alot of oil seepage could occur.
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Aaron 99 F250 CC PSD 214,000 miles
Houston
Hey bud Oil was running down on mine too, I had my mechanic friend check it out. He replaced the rear main seal that's what we thought it was. My problem was the oil pressure line and the o rings connected to it. Turns out it wasn't so check the line and replaced it and the o rings and everything is great. So do the small repair first because the High Pressure Oil Line is SET AT 3,000 PSI! So alot of oil seepage could occur.
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Aaron 99 F250 CC PSD 214,000 miles
Houston