when you have the heater control valve out of the car and unplugged. Is it supposed to be open or closed?
I cracked the heater core in my m52 swap car and as i was pulling out the old one I noticed that the heater control valve was not even plugged in. I have been getting great heat and was able to bleed the system(though it took a few tries).
so I decided to try to blow through the valve to see if it was closed. I was able to blow through it both ways with zero resistance. Is the valve normally open? like does it open when it is unplugged? or is it normally closed, which means I am screwed?
I cracked the heater core in my m52 swap car and as i was pulling out the old one I noticed that the heater control valve was not even plugged in. I have been getting great heat and was able to bleed the system(though it took a few tries).
so I decided to try to blow through the valve to see if it was closed. I was able to blow through it both ways with zero resistance. Is the valve normally open? like does it open when it is unplugged? or is it normally closed, which means I am screwed?
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