My 1989 camry heater hoses are cold while the car is warmed up and the upper radiator hose is hot. I checked the heater core mixing control valve. It seems to be operating normally. I noticed that the hoses on the valve are both cold all the way to the the connection with the upper radiator hose, which is warm to hot. There are no leaks Any help would be appreciated, Thanks in advance. Ralph
SOURCE: 1989 Toyota Camry LE won't start after upper radiator hose blew
you might want to try drying out the distributor cap and the rotor.they get water in them and they wont start.
SOURCE: I have a 1997 Toyota
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.
SOURCE: No heat/defrost 01 corolla
Sounds like you have air trapped in the heater core when you flushed the heater core. loosen the upper most heater core hose and run the engine untill coolant seeps out. Wait until the coolant has reached running temperature.
SOURCE: ONLY WARM AIR FROM HEATER,
The next possibility, if you haven't already thiught of it, is as simple as making sure there is enough water/antifreeze solution in your radiator. If the level is too low, your hoses will get hot, but there will not be enought water to circulate into your heater core.
SOURCE: Heat troubles..92 dodge caravan 3.3L..new
If it is fogging your windows, you have a leaking heater core. Dash removal is required to fix it.
Testimonial: "great advice,,but I am not losing antifreeze from my cooling system,"
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Hi Ralph Chianelli, how is the water pump for the radiator ?
has it also got a fan belt working on the water pump ?
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