Rear main seal oil leak on 7.3 at used car dealer? Any Ford techs? - Ford Powerstroke Diesel Forum
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Old 07-09-2008, 10:38 AM
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Rear main seal oil leak on 7.3 at used car dealer? Any Ford techs?

I'm looking at a 7.3 4x4 CC, PSD with 226k. It's at a smaller dealer lot and they just told me that it's leaking from the rear main seal. A mechanic friend of mine says he's never seen a rear main leak on one of these, that also seems to be what others think here.

My question is how likely is it to be hpop or turbo ped. leak (my reading says very)? If it is indeed a rear main leak, would that deter you from buying the truck? Would a leaking rear main indicate excessive engine wear?
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Old 07-09-2008, 10:41 AM
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I thought rear main was going outa the truck that just bought... took to to my mechanic and he said he has NEVER (knock on wood) seen the rear main leaking on these 7.3's that its oil from the turbo pedals staying in the valley and leaking back.... and sure enough he tore it down and that was it.... its getting fixed as we speak
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Old 07-09-2008, 10:42 AM
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but if you can convince them its the rear main and make them knock off a bunch since its a high price to fix then you can buy it and take and fix the real problem and save bunches of money
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Old 07-09-2008, 10:43 AM
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I had the rear main on my 97 start leaking, warranty covered it but that was years ago... NO, its not the rear main... Turbo ped or HPOP O rings are easy fixes!
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Old 07-09-2008, 11:08 AM
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Tell them you know it's the rear main leaking and that you'll buy it at a discounted price.

Then fix the oil leak coming from the topside yourself for a few bucks and make out like a bandit.
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Old 07-09-2008, 11:22 AM
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Thanks for the postings. Just spoke with the Ford dealership down the street and I'm thinking of having the truck taken over there and have it looked at by a "neutral" party. They want $110 to look at it, which I don't think is too terrible. Could save me an eight hour drive or more than $110 off of the asking price.
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Old 07-09-2008, 11:58 AM
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dude i already went through all that. its your HPOP orings or your pedistal. is the oil in the valley if yes then its an easy fix. i think mine cost $29 to fix and thats buying FORD orings
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Old 07-09-2008, 12:01 PM
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truck

Well, it's not quite that simple. I'm eight hours away from the truck and debating if I should take the time to run down there and check it out. That's why I think the dealership route is the best way...plus they should find anything wrong with it and give me more negociating power...
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Old 07-09-2008, 12:06 PM
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Yeah these guys are all right on. I've been through the same thing with mine. I bought it while it was leaking. Took me 2 months to find the leak, but it was an easy fix.(mine wasn't the typical o-rings).

My question is why even bother with it though? I know you'll be able to get it cheap, but in todays market you can get any PSD cheap....Y mess with one that has 226K on it. I would look for another one that is in the low 100's and has a (rear main) leak...

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Old 07-09-2008, 02:27 PM
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good point. This one has roughly 3-4k in extras but I understand what you are saying. If I come across one at this pricepoint I would consider it, but diesels are getting so cheap that this one is down 4k from the origional asking price.
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