How do I "burp" cooling system?

I tried a search, but could not find any specific information. I am planning on changing the coolant in the X before winter and need to know how to "burp" the system.

I think I just drain it, refill it (recovery tank) almost to the top and leave the cap off the recovery tank and run the engine for about 10 mintues. Then recheck and refill if needed. Is this correct? Or am I missing something?

Thanks Guys.

I would think parking on an incline would help too.

Almost right. Drain radiator and recovery tank. Fill up radiator to about two inches below where filler neck starts and leave the cap off. Start and run engine untill t-stat opens. ( about 10 minutes, and upper radiator hose gets hot) Top off radiator, close cap, and shut off engine. now fill up recovery tank to hot level. Done

Another thing I've always done is to squeeze the upper radiator hose a few times after you put some coolant in the radiator--this can squeeze any air out that may be trapped in there. Sometimes air bubbles "burp" up into the radiator filler neck when doing so.

How do we drain the reserve tank? or when the radiator is empty does it move into there?

To drain the tank, simply remove hose from the bottom.

Originally posted by aldive
To drain the tank, simply remove hose from the bottom.

Click to expand...

Yep. Or, you could suck it out with a turkey baster if you won't feel like undoing the hose.

Man, talk about bringing a thread back from nowhere, this sucker is a year old! Over a year actually, I'm almost due for another coolant change, luckly, now I know how to burp the system.