coolant leak - Pontiac GTO Forum
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post #1 of 2 (permalink) Old 06-07-2013, 12:04 AM Thread Starter
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coolant leak

so i noticed a small amount of smoke and the smell of burning coolant the other day when i popped the hood on my 06 gto. the smoke was coming from the rear drivers side of the engine. but here is the kicker, it only seems to leak when i run the heater. ive driven probably 100 miles and i cant seem to notice if it is leaking anymore because i have not been using the heater. any ideas on what this could be? i know that i could be a head or intake manifold, but then why would it only leak while the heater is on?
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post #2 of 2 (permalink) Old 06-07-2013, 10:06 AM
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If it was intake or head gasket it wouldn't care if the heater was on or off. I would pressure test the cooling system.
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