my 2005 cobalt temp goes up to 220 -260 and I hear swishing water sound when I turn. I had the thermostat changed but did't help. Also had water on my passenger side a couple of weeks ago. Any Ideas about what is going on

Asked by Oct 10, 2016 at 07:45 PM about the 2005 Chevrolet Cobalt Sedan FWD

Question type: Maintenance & Repair

2 Answers


Sounds like you have air in the cooling system from a leaking heater core. HTH. -Jim

Fill the coolant tank, run the car a little and check level again. Fill it again and keep filling until the level doesn't drop. It'll stop this sound if there is no permanent leak but if there is, you have to stop the leak first.

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