Turbizmo
15+ Year Contributor
- 430
- 0
- Jul 3, 2005
-
Salinas,
California
Hey most of you guys know i have a 420a turbo well my question is sometime when i step on the gas i see blue/white smoke come out of the muffler and that only happens sometimes but, also sometimes when i am driving my car hesitates and i give it gas and it feels like nothing is happening and all i see is blue smoke and then all of a sudden the car boost pike then the smoke goes away so any idea why this happens.
z. The blue smoke is usually an indicator that you're burning oil. White smoke with a hint of coolant smell from the exhaust is a sign of a blown headgasket lots of times. You should hope you don't have both haha. Maybe just your turbo sucks balls, was it a used ebay turbo or something of the sort? You could possibly be mixing coolant/oil so I would check that. Also, a compression test couldn't hurt. Did you do one before bolting on your turbo setup? How many times have you over boosted it...it only takes once.
Is it kinked, and oil is leaking out at the flange where it bolts to the turbo? Has it melted against your downpipe or gotten close to it...what kind of return line (ss, rubber, etc)? Take off your downpipe from the turbo and check to see if there is oil in there that has blown past the seals in the turbo. Also, as I said before...it wouldn't be a bad idea for a compression test. Who knows, maybe you're lucky and it's just a spark plug tube seal.