Van heater not warming up-any auto mech types?

ninjavanish · 11-11-2011, 09:25 AM

Echoing others who've posted already...

Sounds like it could be related to your thermostat.

The thermostat is going to open up, allowing coolant to flow freely to the radiator and heater core once the thermostat reaches the appropriate temp. This typically happens within a few minutes of starting the engine.

If it's stuck in the open position it is not allowing the coolant to increase in temperature properly because it is running through the raditator from the moment you start the vehicle.

This may account for why after a prolonged period of driving the heater appears to begin working again. It is simply requiring a much longer period of time for the coolant to attain a temperature sufficient enough to provide the heat into the cabin.

11-11-2011, 09:25 AM	#12
ninjavanish Feeling at Home Join Date: Aug 2010 Location: Trust me, your humi isn't big enough. Posts: 507 Trading: (16)	Re: Van heater not warming up-any auto mech types? Echoing others who've posted already... Sounds like it could be related to your thermostat. The thermostat is going to open up, allowing coolant to flow freely to the radiator and heater core once the thermostat reaches the appropriate temp. This typically happens within a few minutes of starting the engine. If it's stuck in the open position it is not allowing the coolant to increase in temperature properly because it is running through the raditator from the moment you start the vehicle. This may account for why after a prolonged period of driving the heater appears to begin working again. It is simply requiring a much longer period of time for the coolant to attain a temperature sufficient enough to provide the heat into the cabin.