Have the cooling system pressure tested for leaks, the heater often loose coolant and gets an air lock, start here.
mark (mhpautos)
Feb 10, 2011 at 10:18 AM
RASMATAZ
CAR REPAIR CONTRIBUTOR
75,992 POSTS
If the thermostat is shut closed it will cause the engine to overheat and no heat-could also be airlock if you're replenishing the coolant and not bleeding it
Feb 10, 2011 at 11:33 AM
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