My heat blows cold too. I tried swapping those two vacuum lines, but nothing changed. I think the valve might be bad, but I don't have a multimeter handy to test it at this time. They said the heater core is 16 hours labor to change out because they have to remove the entire engine to get at it. Is that true?
Also, as soon as I press the front defrost button, the A/C lights up, and the vents open up to outside air. That makes absolutely no sense to me. Is that normal, or is my climate control just FUBAR?
Oh, and I just read the last 2 posts now, I will go get a hose joiner and try that method. Thanks.
