2006 Legacy blows white smoke

Discussion in 'Subaru Legacy' started by Tom, May 18, 2021.

  1. Tom


    May 18, 2021
    Likes Received:
    Hi everyone.
    My 2006 Legacy GT with the EJ255 turbo engine is blowing white smoke, however not initially when starting only under load and more so after it warms up. I am trying to confirm that this is because of the head gasket. There is no coolant in the oil, it looks fine. I first suspected the turbo, since when I disconnected the exhaust pipe from the turbo, coolant came out. So I replaced the turbo, however unfortunately that did not fix the problem. Note the engine runs fine otherwise, no excessive noise from the valvetrain or bottom (Middle) end. So before I go and tackle the head gasket I would like to make sure it can't be anything else. I took out the spark plugs figuring I should see evidence of coolant mixture on them. However they appear to look fine to me. See picture. Any bright ideas or should I bite the bullet and do the head gasket.
    Also any advice on doing the head gasket with the engine still in the car, or direct me to a thread that discusses this for a DOHC.

    Any help / advice is very much appreciated.

    Attached Files:

    Tom, May 18, 2021
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