Quote:
Originally Posted by toyotc78
if you are low on coolant or you have air in the cooling system it will cause your 22r to idle up and down. check your coolant level and heater operation. vacuum leaks can also cause those engines to idle up and down
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I think the coolant hoses are on the air valve to keep it hot say when you turn off the engine at a store and then come out 20 mins later. The valve will still be hot without having to heat up the electric bimetal lever electrically. How does this sound?