[Carmine]

Hey Eric, I have a 2004 Volvo XC90. It has the 2.9L 6 cylinder, twin turbo. The Car has a coolant issue. It goes through about 1/4 gallon of coolant every 200 miles. I have been monitoring it for the last few months and the coolant loss is definitely related to mileage, not time, so I know that the coolant isn’t just leaking out of the car. I have found no trace of coolant in the cabin, no spots on the ground, no signs of coolant anywhere in the engine compartment either. So the two things left that I can think of is either a turbo or the head gasket. I have not checked for combustion gases in the coolant yet, but I don’t see any signs of coolant in my oil so I’m not really sure its the head gasket. Also, I noticed the other day that if I leave the car idling for a long time and then go to move it, a large amount of smoke will come out the tail pipe, even if the car was already warmed up before it was idling. Do you think coolant is leaking into the turbo? Thanks for all your help.

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