Quote:
Originally Posted by jamestemperante
Went to the dealership and said it might be a faulty head gasket -_-
also noticed something, when pressing the gas and holding it to 2.5k rpm, bubbles in the reserve tank (radiator cap closed, bleed cap closed) seems to go slightly faster. Any idea what might be causing this? some say its a thermostat.
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Your car was [fine], someone changed your coolant, then your car was [not fine]. Did you severely overheat your engine while it had the slushing sound condition? If not, your head gasket is probably fine.
Who said it was the thermostat? The heater bypass is what operates the thermostat, low circulation in the heater will result in incorrect thermostat operation. That does not mean the thermostat needs to be replaced.
Now, we will suppose you eventually let the car cool down, filled it properly according to the shop manual procedure linked in this thread, has that resolved the slushing sound? And you are still getting bubbles out in the overflow tank? There is a very easy test to do: With the car cold, coolant full to the top of the filler and no bubbles coming out of the bleed port. Close everything, start the car, warm it up, turn off the car, squeeze the top radiator hose a few times. Is it hard like a mountain bike tire or soft? If soft, can you hear fluid slushing in the overflow tank when you squeeze?