Re: Heater blower resistor
Nothing else that springs to mind, it sounds like the control valves are receiving hot coolant if they feel warm, but the hot coolant isn't getting from there to the heater matrix for some reason so either they are stuck closed or there is a fault elsewhere.
Hopefully someone else will come along with some ideas.
I think the valves control the coolant exit from the heater core not into it. Obviously if the flow is non existent then no heat will be felt.
The valves pulsate I hear and the the frequency of the pulsations control the flow of coolant and hence the heat. The two valves operate independently of one another and thus the so called zone heat controls, driver and passenger.
Frankly I would check to see if there is power to the solenoids as a first step.
Check fuse #15, in the under hood fuse panel.
Last edited by onehundred80; Oct 19, 2013 at 04:51 PM.