Coolant leak?

Asked by Nov 22, 2010 at 10:09 AM about the 1997 Chevrolet Monte Carlo 2 Dr LS Coupe

Question type: Maintenance & Repair

Hey guys. Yesterday while driving my "low coolant" light kept coming on for about a minute or 2 then going off for a while, then coming back on etc. I just changed the level sensor about a month about ago so my initial thought was a loose connection but when I checked, sure enough I was low. My radiator is full but the reservoir is empty - it was full after i changed the sensor.

I park in a driveway at night so I probably would have noticed any large leaks from the system. I had the head gasket changed out about 2 years ago because of the notorious leak but I'm wondering if that problem has come back to haunt me? Ideas? Thanks.

2 Answers

455

did you try checking out the heater core? My auto teacher has the same problem with his sunfire.

A heater core leak would most likely result in the smell of antifeeze inside the car and, if it's a bad enough leak, would also result in an "oil slick" on the inside of your windshield. Have you thought about pressure testing the cooling system? Don't know anymore what a shop might charge you for it but it would probably be less than it would cost you to buy a radiator pressure tester.

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