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Old 02-24-2007, 04:28 PM
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need help on turbo problem

Hello to all, I have been on the site for a couple of weeks but I can only seem to post from the intro forum. Can't seem to get the issue resolved.My first PS so I'm learning as I go.
My question is has anybody had problem with a blocked return line on a turbo for the 01 7.3? The boost is really low even under load. I did pull intake wheel
spins free with no movement on shaft??I do have some leakage in the valley
so I'm guessing both top and bottom o-rings need replaced. Any advise???

Last edited by baja38ss; 02-24-2007 at 04:38 PM.
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Old 02-24-2007, 04:50 PM
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A blocked return line will cause a major oil leak. You low boost is probably caused by a leak in the intercooler boots.
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Old 02-24-2007, 04:52 PM
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Not sure what you mean by blocked return line? Usually if turbo wont spool up you have a leak somwhere. Check all your clamps and rubber boots on your pipes comming from your intercooler. If your leaking at the turbo pedistal there is a write up for that somewhere here. I will see if I can find it. You have to remove your turbo for that fix. Private message Rodslinger and let him know what your issues are on the forum.
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Old 02-24-2007, 04:54 PM
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Ahh talking about the oil return line I assume
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Old 02-24-2007, 04:58 PM
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Here is a link to the turbo pedistal oring r/rTurbo Pedistal Oring RnR
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Old 02-24-2007, 05:48 PM
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thanks for the help, I'm guessing here truck was at dealership says they can't
find anything to do with power loss. I don't think they work on to many diesels. Anyway taked to a diesel garage today thats works on big rigs along with PS. Told me there's something in the pedistal (can't remember exact words)thats causing the turbo not
to spool up like it should???He has replaced many of these on the PS. Did not
refer to the WG. I should add that I do have some blowby in the tailpipe, which he said is the cause of this also. Approx $600.00 depending on the housing of the turbo to fix. I'm not seeing this???
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Old 02-24-2007, 06:04 PM
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Where are you at in Pa.? I'm in WV and know of some people west of the burg.
If the seal is out in the turbo it can cause oil to leak, mostly out the exhaust. The compressor wheel would have to be rubbing the housing to cause low boost. Is there any oil leaking from the exhaust joints?
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Old 02-24-2007, 06:17 PM
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I'm in Johnstown. Didn't see any leaks at the joints. I just put the 4 dp
on a couple of weeks ago and 5" out. I checked intake side on turbo it's
clean and tight. The boots are a little oily up front on the intake side but
I haven't checked for leaks. Is there a sensor in the pedistal also look like
one from the pic in chilton?
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Old 02-24-2007, 06:28 PM
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There's a wire that plugs in for the exhaust back pressure actuater. An oily residue is normal on the intercooler joints. It comes from the Crank case vent on the turbo inlet tube.
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Old 02-24-2007, 06:32 PM
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whats the time to pull the turbo off or parts that would be in the neighborhood of 600.00? or is he blowing smoke
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