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How do you bleed a cooling system in Chevrolet Cavalier?

January 5th, 2011 · No Comments

I need to get all the air out of the system. Because I tried to keep the cooling level full and letting it warm up to operating temp with the radiator cap off and that does not work there is still air in there. do i need to disconnect any hoses or anything like that.

- There should be a bleeder valve on the line on the front of the engine. It will take several tries but open it until air stops. then refill the tank and do this again. If the bleeder isn’t located there look at the area where you put the thermostat (normally where the top radiator hose goes). We had this problem and it took us several trys to get it bled.
- What I have found to work is to fill the systam up, let it run to opperating temp. with the cap on. Shut it off with the cap still on and when it cools it will suck down the coolant in the bottle. You may have to repeat once more to get all the air out. I’m not sure if this is how it says to do it in the manual but I am sure that this has worked for me dozens of times on the 2.2L cavalier and sunfire with all the by-pass hoses going all over under the hood.
- You don’t need to bleed cooling systems. Just keep checking and add as needed. It will eventually seek its own level.

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