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Old 11-13-2012, 12:15 AM   #3
Scooby Newbie
Member#: 264784
Join Date: Nov 2010
Chapter/Region: NWIC
Location: Seattle
2003 WRX
Subaru Blue


first thing to check is pull the intercooler and see if theres any oil residue inside, there should be a slight film seeing as the td04l turbo is a journal bearing turbo.

if theres oil in the tmi continue to pull the downpipe to verify if your turbo is blown

if not perform a leakdown test on each cylinder, remove the oil cap and if you can feel air coming out of it you most likely have a ringland issue or piston rings could be letting oil into the cylinder

either way if you have a good turbo youre going to need to pull the motor for further diag
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