Question about 2003 Mitsubishi Galant

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Engine gets hoat some time, no heat from heater. top hose seems hot to touch lower hose is cool. Drained radiator few weeks ago and problem began

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Theres a strong possibility being you just changed the coolant a few weeks ago that theres air in the cooling system not allowing the coolant to cirrculate properly, look at your top radiator hose is theres a small bleed valve at the top of the thermostat housing when the upper hose attactes to? If so loosen the bleed valve and allow the cooling system to purge the air out of the system you can tell when the air is out of the system when a steady stream of coolant starts to flow out of the bleed valve, if theres no bleed valve take the top radiator hose off of the engine side and allow the cooling system to purge the air out through the top of the engine that way, but it definatly sounds like theres air in the system not allowing for the cooling system to cool properly...

Posted on Dec 07, 2010

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Tip

How to diagnose ALL vehicle NO heat problems


It is winter and you jump in your car start it up and turn the heater blower fan on.
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