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Answered 2011-09-12 15:21:38

uhm if the water pump is putting air in youre coolant system then youre water pumps seals are gone the same thing happen to my 1996 Honda accord i took it out and found out the seals were gone so the breather for it was sucking in air and letting it all in the cooling system so id change it

AnswerIt's possible, but if it happened there wouldn't be much and it wouldn't really be under pressure. Also, if that's going on you'll loose coolant when the engine is first turned off.

If you are blowing out coolant because of pressurized "air", it's most typically a blown headgasket and you're getting exhaust gas into the coolant chamber.

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