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how does the engine run at idle and when driving ?
is the engine skipping ?
does the car loose coolant ?
it starts to mist after it idols and it has no heat at all even when i had the new thremostat in it
its not letting anything flow threw
you are down to 2 things that will cause the coolant not to flow
either a blocked or restricted radiator or the most common a head gasket allowing combustion to get into the coolant system and the compression will over power the coolant and stop it from flowing
most parts stores sell a tester called block tester this test will test the coolant system for any emissions getting into the coolant system the odds are the test will show up positive for emissions in the coolant system which shows the head gaskets are bad
if the test shows up negative have the coolant system flushed out if it still does this it has to be the head gaskets causing this problem you have