how do I drain the radiator on a 2007 cobalt with no petcock

Asked by Jul 18, 2017 at 11:25 PM about the 2007 Chevrolet Cobalt 2 Dr 2LT Coupe

Question type: Maintenance & Repair

My engine is overheating. It is not the thermostat, water pump, the fan, or the
head gasket. I can not find any information hoe to get the water out of the
engine

6 Answers

79,505

Take off the lower radiator hose.

Best Answer Mark helpful

how do you bleed the air when you are through

79,505

Open the radiator cap and idle the engine with the car facing up hill.

2 of 2 people found this helpful.

there is no radiator cap.

79,505

There is a reservoir cap.

4,325

However, if the car is overheating why are you concerned with draining the coolant? Is the system full? Is there air trapped in the system? I would find the source of the overheating problem first if I were you.

Your Answer

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