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02-21-2011 11:25 PM #1
When should lower radiator hose get hot?
Finished replacing my water pump (64k miles), belts, and upper/lower radiator hoses (and,of course, the fan shroud that got trashed when the water pump went out!).
Filled radiator through expansion tank. Started car. It warms up to th 12:00 needle position on the gauge after a few minutes and drove around block. Gauge stayed at straight up position, tons of heat blowing into cabin.
Pulled back in garage. Top radiator hose HOT - but bottom hose cold.
What's going on? Do I have air in the system? Shouldn't the coolant in the radiator be circulating through top and bottom hoses all the time? Over-filled?
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