Quote:
Originally Posted by Peepers
The coolant is new. About 2 months ago I changed my water pump and thermostat.
What is a "basic bleed" with the bleeder screw?
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It's literally just making sure that all the air in the various hoses that connect to the expansion tank is expelled. All it really involves is removing that bleeder screw, then slowly pouring in the coolant until there are no more bubbles in the coolant that will start to flow out of the bleeder hole. Once this is done, you may need to remove a small amount of excess coolant from the expansion tank so that the level is correct. Then put the bleeder screw back and close the expansion tank. Now you can run the purge procedure to do the rest. Open the expansion tank cap to release any of the trapped air that has been purged, close, and repeat at least one more time. But don't open the cap after the final purge. I somehow think that the purge procedure builds up a certain amount of pressure which helps the system in terms of efficiency, could be wrong on that point though.