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2002 impala 3.4 overheating water line air bleed after blead no air then after drive all steam no water at high idle water pressure out of bleeder slows down replaced water pump removed thermostat?
Wiki User
∙ 12y ago
engine has 2 bleeders intended for filling cooling system only! they are not to be opened while engine is running or hot. the best method I've found for filling the cooling system on these is as follows:
open the lowest bleeder first (the 1 near the throttle body).
remove the radiator cap, fill very slowly until coolant flows out of bleeder, close the bleeder and don't touch it again. next instead of opening the other bleeder (the one near the bypass hose at front right of engine), disconnect the bypass hose and insert a funnel into the hose, fill at hose until coolant comes out of the radiator fill and install the radiator cap and do not remove it again, next continue to fill at hose until coolant comes out of pipe which you disconnected hose from. at this point your cooling system is completely full. reconnect the bypass hose and don't touch anymore bleeders, you're done. make sure there is enough coolant in the overflow bottle. Again, this is all done with a cool non running engine. after cooling system is properly filled if you still have an overheating problem look somewhere else, it's not because there's air in the system. i have shown technicians this filling procedure it works well.
I am another reader who had this problem...greatest advise that i had read...and it worked....thank you for this.
Wiki User
∙ 12y ago
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