Heater Core Replaced, Now Blows Cold Air
I had a leaking heater core replaced on my 99 Winnebago with a Freightliner XC chassis. No more leaks, but now the dash heater only blows cold air. I suspect my local truck repair guy (who knows hea...
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Run the engine with the radiator cap loose, so the system won't build pressure. You may have to take it for a drive to get the air totally purged.
