vtraudt

Car was drinking coolant.
And overheating.
No white smoke.

Decided water pump or thermostat.
Replaced both with new ones.

Still doing it.

Decided to run compression test.

With injectors disconnected, all spark plugs removed, and throttle wide open, cylinder 3 (front front of engine) is spitting water/coolant.

Does that mean bad head gasket?
I always thought that would lead to 'white smoke'?

Is is likely that new head gasket will fix it? Or systematic for other defect?

Here is the video showing the coolant spitting:


http://s1273.photobucket.com/user/Kr...efbf0.mp4.html

vtraudt

Head off now. Initial check: nothing obvious that I can see. Only surprise: found that a spark plug defauler is stuck in cylinder 3 (the one showing problems). No socket to get to. Locktite a spark plug into the defauler, will try to remove tomorrow.

Here are photos (as is, not cleaned).
http://s1273.photobucket.com/user/Kr...20Passat%20AEB

vtraudt

Head is being rebuild now.
Before putting everything back together: any suggestion regarding:

a) flushing the block (water slime)
b) checking, fixing, cleaning up crank ventilation/PCV system on AEB (get rid of useless junk, fix plastic junk, replace parts, etc.)

Thanks.