Need Heater Help!

[Fury_786]

It only seems to function in the defrost/floor setting, no matter where the knob is. i replaced the HVAC controls today, but to no avail.

is there a vacuum line somewhere that falls off or something?

[WS-6]

Hi I had the same problem and another member helped me out.The problem is a little vaccum tee on the passenger side right up against the firewall. I changed the tee and it works great. The other member changed his multiple times and finnaly epoxied over it. I had some vaccum pieces left from my old 97 s10 blazer including a better tee wich I used on my t/a. Other members said that the line will fall off the back of the manifold so check that too.

[Fury_786]

thanks a bunch man!