white smoke & no boost = ?

[jeremyuhh]

so its been about 150 miles since i turbo'd my KA. Pulls and drives fine. AFRs are perfect and no vacuum or boost leaks. Drove today in about 80+ degree weather for 25 miles. boosting here and there on the freeway. Drove back 25 miles, boosting here and there again on the freeway. Once i exit, i notice a lack of power, felt as if the car was NA again.

At a stop, white smoke is coming out of my exhaust, not a ton but a good amount. Once i move it goes away.

I step on it a little and i see almost no boost. 0.1 bar at the least. i dont hear my BOV and i can barely hear the turbo spool.

My stock temp gauge is reading normal, my AFRs are reading normal.

Im currently at work and want to diagnose this before i go home, so I know to drive the car or not. Is this a blown turbo or blown headgasket, crack in my block, or leak in my intake manifold? I have not had a chance to check my oil nor my coolant reservoir yet.

any in put is appreciated. thanks.

[aga]

blown turbo. the smoke is oil coming through the seals and burning in the exhaust.

[jeremyuhh]

blown turbo. the smoke is oil coming through the seals and burning in the exhaust.

That's what I've been thinking too. Doesn't oil burn grey/blue? I know coolant/water burns white

Also could this be related to the oil return bung not draining to the pan properly ?

[aga]

of course it can be related. if the hose has a kink or the oil return is too low in the pan, it's very likely that there will be drainage issues.

[jeremyuhh]

of course it can be related. if the hose has a kink or the oil return is too low in the pan, it's very likely that there will be drainage issues.

There is no kink but could drainage issues force oil back into the turbo? And could that also cause white smoke

[wussmonster]

What does your oil look like? White smoke usually means headgasket. :/

Do a compression test when you get it home.

Sent from my XT603 using Tapatalk 2

[jeremyuhh]

What does your oil look like? White smoke usually means headgasket. :/

Do a compression test when you get it home.

Sent from my XT603 using Tapatalk 2

havent checked it yet. and i will.

would i get bad temp readings and possible over heating if i had blown headgasket? and it only happens randomly at a stoplight. when i parked, it didnt smoke.

[aga]

to get smoke from a headgasket would mean that the engine is really gone. and yes it would overheat.

i dont think its headgasket. the behavior you describe fits turbo seals failure. if you suspect drainage problems, there's your culprit. the turbo may not even be damaged, you might fix the kink in the drain hose and everything be all right...

[aga]

There is no kink but could drainage issues force oil back into the turbo? And could that also cause white smoke

normally the drain of the turbo should end above the level of oil in the pan. if your drain is below that, it's possible to be a problem.

[jeremyuhh]

normally the drain of the turbo should end above the level of oil in the pan. if your drain is below that, it's possible to be a problem.

How would that hinder the turbo from spooling?

Also, before I left for work I checked the oil - good. Checked the clamps - all tight. Pulled out the parking lot, no white smoke at all. Got on the freeway, no boost no BOV but I can hear the turbo slightly spool.

I drive about 20 miles. Before I exit I drop to 4th and floor it. Took longer than usual but I hit full boost.

Stopped right in front of my house and poof - a lot of white smoke coming out
My exhaust.

[aga]

just take out your turbo and inspect it or take it to a shop, playing psychic is gonna get you only so far.

[spools420a]

im goona say its probably just the turbo,the white smoke is from the coolant feed side not oil as oil burns bluish

[jeremyuhh]

im goona say its probably just the turbo,the white smoke is from the coolant feed side not oil as oil burns bluish

I'm Not running coolant lines, just oil.