Question about 1997 Toyota Tacoma

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I have a 1997 Toyota and the heater only gets luke warm. The intake on the heater core is hot but the other hose is cold. I check the floor board to see if the heater core went out but the floor is dry??? Help!!!!

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It very possibly could be the actuator that controls the valve that allouws hot water to flow through the heater core. If the out hose is cold then there is none or not enough hot water flowing through the core itself. If you are sure the cooling system is full and you are sure the core is not leaking (you would smell the anti freeze if it was leaking very much at all) then the only thing left is flow and if the water pump itself is working as it sould then I would say either the core has something restricting the flow and that could be a hose that has a kink, or a blockage of some sort(rare but it happens) or the heater control valve is not functioning as it should so the valve isnt opening (I think its controlled by a vacume line going into the back of the knob that is on the dash. I had a 97 Tacoma V6 and the heater would literally melt you to the seat. If you check all that and dont find a problem then I would like to know what you do find if you ever figure it out. Hope that helps you at least have some places to start.

Posted on Jan 28, 2009

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