My friend took her car to our local mechanic when her heater stopped working. They fixed the heater but there was foam in the coolant when they checked it. They told her it was a cracked block or head. Strange thing is, she isn't leaking oil, the coolant isn't low, and the car doesn't overheat. It seems to run great, but everyone says foam in the coolant is a very bad thing. Is there anything else that could be causing this?
Wednesday, February 6th, 2013 AT 1:20 PM