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Okay to make it quick and simple I am rebuilding my Turbo for my 2003 Ford F350 6.0 liter. Doing the CCV mod as well. My question is with all the oil that is coming out of my tailpipe along with all the white smoke billowing out, while the turbos off can I get my power washer and power wash my entire exhaust pipe? I was thinking I could wash starting from where it connects to the turbo and flush all that all residue out the entire exhaust pipe out the tailpipe… then letting it air-dry for a day and then reconnect the turbo… could this by any chance damage anything or is it a bad idea or good idea?

Yes you can wash the entire pipe sections of the exhaust. Just don’t do this with the muffler or the cat converter. Or both will be dead.