the van in my car blows cold air even when switched to hot ichanged the thermostat cause car was over heating .Once i changed it overheating stopped and heater started working proper again but after 2 days heater stopped working again anyone know what would be the cause of this
Cooling System may have a air lock. You can remedy this problem possibly by removing the radiator cap, starting you engine and allowing the vehicle to reach it's operating temp. All air which is trapped will gradually work it's way out through the spout. Be sure to top up the system gradually, as you will loose some coolant during this procedure, also be sure to have something under you vehicle to catch the coolant that will be lost. Not doing this could cause an animal to possibly lick it up. I am sure you know coolant is poisonous.
G.Davis
August 2007
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