jem.qu44tro
New Member
2007 2.0T fsi with 84k
The issue:
The car smokes whitish smoke under WOT, does not boost more than 4lbs and makes a popping noise followed by a plume of whitish smoke out of the rear if I keep foot on the throttle. I've figured out that all the oil I'm "burning" is finding its way into the intercooler piping and getting sucked up under hard boosting (car has no problem driving around in vacuum)
What I've figured out:
If I drain the intercoolers, the car boosts completely fine and pulls like a train for about a week until I try to go for a hard pull and get the smoke out of the rear.
I've checked the turbo for a leaking seal out of the downpipe and there's no oil residue. I've also checked for unusual shaft play, and nothing seemed abnormal
What could be happening:
The turbo seals are bad and allowing oil into the intercoolers?
Bad piston rings? Compression #'s, DRY, 164 ,155 , 155, 165/// WET, 174, 185,180,170
Valve Stem/Seals?
PCV related issue?
What Ive replaced:
I've replaced the Valve cover, which was cracked, as well as the gasket.
PCV check valve and gasket
Last thing I could replace would be the turbo breather hose, then onto the turbo. Just reluctant to purchase something so expensive and have the issue be something im missing.
Pics attached of the cracked valve cover and rear turbo housing
Any input would be appreciated, thanks for the read.
The issue:
The car smokes whitish smoke under WOT, does not boost more than 4lbs and makes a popping noise followed by a plume of whitish smoke out of the rear if I keep foot on the throttle. I've figured out that all the oil I'm "burning" is finding its way into the intercooler piping and getting sucked up under hard boosting (car has no problem driving around in vacuum)
What I've figured out:
If I drain the intercoolers, the car boosts completely fine and pulls like a train for about a week until I try to go for a hard pull and get the smoke out of the rear.
I've checked the turbo for a leaking seal out of the downpipe and there's no oil residue. I've also checked for unusual shaft play, and nothing seemed abnormal
What could be happening:
The turbo seals are bad and allowing oil into the intercoolers?
Bad piston rings? Compression #'s, DRY, 164 ,155 , 155, 165/// WET, 174, 185,180,170
Valve Stem/Seals?
PCV related issue?
What Ive replaced:
I've replaced the Valve cover, which was cracked, as well as the gasket.
PCV check valve and gasket
Last thing I could replace would be the turbo breather hose, then onto the turbo. Just reluctant to purchase something so expensive and have the issue be something im missing.
Pics attached of the cracked valve cover and rear turbo housing
Any input would be appreciated, thanks for the read.
