PSD slight miss, and oil leak - Ford Powerstroke Diesel Forum
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Old 02-01-2012, 10:38 AM
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PSD slight miss, and oil leak

Alright guys so last night I was talking with my buddy on xbox live. I talk about my PSD all the time so me mentioned his had a slight miss too it and I suggested him use my AE software for a buzz test and cct. He liked that offer to diagnose the issue. He then also said that apparently when he had his oil changed (usually does it himself, but didn't have time this time) the guy said his rear main was leaking. I asked about fuel in the valley, but he didn't see any.
My first assumption with only hearing about it would be that the oil cooler was likely leaking, not the rear main as those are not real prone to going out. If it is rear main how hard is that to replace?
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Old 02-01-2012, 11:07 AM
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The oil cooler is right next to the drivers side exhaust manifold.

Check the back of the turbo for oil. Could be the pedestal o-rings. I found out my pedestal o-rings were leaking because it ran down the back of the block and through the little weep hole in the transmission dust pan. That's why it's there. Using a flashlight, I laid under the truck and pointed it up at the back of the pedestal. There was a slight trail of oil and when I reached up with my hand I could feel it. Just takes some digging to find out where leaks come from.

If it's the rear main seal, which is highly unlikely, I believe the engine has to come out because the engine has to be flipped over for the pan gasket to be sealed. There's plenty of information on here about it. I'd keep digging before I assume rear main. I'd also remove the little dust pan I was talking about, you'll be able to see whether oil is running down the back or if it is indeed a real main leak.
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Old 02-02-2012, 07:29 AM
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Quote:
Originally Posted by Toms01PSD View Post
The oil cooler is right next to the drivers side exhaust manifold.

Check the back of the turbo for oil. Could be the pedestal o-rings. I found out my pedestal o-rings were leaking because it ran down the back of the block and through the little weep hole in the transmission dust pan. That's why it's there. Using a flashlight, I laid under the truck and pointed it up at the back of the pedestal. There was a slight trail of oil and when I reached up with my hand I could feel it. Just takes some digging to find out where leaks come from.

If it's the rear main seal, which is highly unlikely, I believe the engine has to come out because the engine has to be flipped over for the pan gasket to be sealed. There's plenty of information on here about it. I'd keep digging before I assume rear main. I'd also remove the little dust pan I was talking about, you'll be able to see whether oil is running down the back or if it is indeed a real main leak.
the rear main is easy, and the motor does not have to be pulled UNLESS you are wanting to do the oil pan gasket also. the rear main has a mounting flange that has like 6 bolts in it. hardest part is replacing the sleeve
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Old 02-02-2012, 08:19 AM
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Originally Posted by the trav View Post
the rear main is easy, and the motor does not have to be pulled UNLESS you are wanting to do the oil pan gasket also. the rear main has a mounting flange that has like 6 bolts in it. hardest part is replacing the sleeve
Gotcha. I'm guessing it's one of those rear main seals where you have to use a special tool to get it in?
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