I replaced my timing belt 20000 miles ago, so that isn't the problem.

I didn't replace the water pump or pulley when I did it though. I've noticed my radiator is very low on coolant quite often, so I'm wondering where my coolant is going.

I'm wondering if this coolant leak might have something to do with the sound because when I filled the radiator it quit. When it started again I checked and the coolant was real low again.

ItÆs not going into the oil because the oil is not foamy and also not leaking because there are no puddles inside or outside the car.

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