My XC70 Cross Country will need the Intercooler cleaned internally due to much oil from the faulty PCV system, since corrected! No doubt removal would be the correct repair along with replacing damaged hoses and sensors.

I performed this on My 745T due to its easy access.

Curious if any BB members have tried cleaning the IC internally while in chassis, I'm thinking mineral spirits and soft flexible hose with regulated air pressure. Well aware that it must end up clean and dry to avoid damage!

My search involved mostly removal of the IC, would welcome tips on disassembly of the bumper fascia, etc.
Sorry for the long post!

As it turns out the damage was confined to the large turbo inlet hose but was still able to spray mineral spirits through both sides several times and there was no significant amount of dirty oil!

IC did pass a smoke test but visible smoke coming from the turbo area? Will remove heat shield for inspection.

The IC really doesn't need cleaning. As for smoke near the turbo, check the small hose connection between the turbo and the hard IC piping. Also verify that the air intake hose is fastened to the turbo snuggly.

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Keeping it running is better than buying new

First of all, Thanks! You stated that my LPT should generate 12-14 psi and I'm registering less than 10 psi. Should I be concerned?

I do have a raft of vacuum lines to replace and very curious about cleaning the PTC! Is there be an O-ring that seals the compressor housing to the main body?

Placed a FCP order for the IC hose and two turbo related sensors, can I use local auto parts for vacuum hose?

Can I do a meager application of Seafoam to the intake, being careful to avoid Hydro lock?

Thanks for all your help and have a "Happy and safe New Year"!

LPT should be less than 10 psi.

Matthews Volvo site has a good tutorial on replacing the piping for the PTC

"Is there be an O-ring that seals the compressor housing to the main body?" I don't understand the question.

I would ignore Seafoam to clean the intake unless you know the valves are extremely dirty. An Italian "tune up" works just fine. Just remember, 5500 rpm in 2nd gear = 55mph.

So long as the vacuum hose has the same inside diameter as stock.
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Keeping it running is better than buying new

Thanks again, glad to hear 10 psi for boost OK!

"Is there be an O-ring that seals the compressor housing to the main body?" I don't understand the question.

I believe many folks refer to the compressor housing the "cold side" while the turbine housing is the "cold side". I dug into this and found there may be a large snap ring and O-ring?

Sorry about that I rebuilt Cummins turbos over 50 yrs. ago.

Appreciate your answers and advice!

http://www.volvoforums.org.uk/showthread.php?t=48611

The above shows how to replace the internal O rings in the turbo.

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Keeping it running is better than buying new

http://www.volvoforums.org.uk/showthread.php?t=48611

Outstanding article well done!

Oops saw my mistake, should have said "hot side" for the exhaust.