2001 Toyota Celica Q&A
2001 Toyota Celica Question: heating control valve
There is no heater control valve listed in the parts listings that I have but there is a heater control unit listed. that is where I would focus my inspection of your issue. - dandd
Heater valve I believe is in the engine compartment center rear on the firewall operated by a cable two hoses attached to it approx 3/4 inch diameter. - patrick mannion
The heater will not heat while running around in town but if out on the highway it will heat...does it have a heater control valve .... does the water run through the heating coil all the time???