Old subject and sorry for any repeats.. however, this one is baffling. All four actuators/vents operational.. tested with vac to each one and they open and close properly. Installed new ACDelco 15-71389 GM Original Equipment Climate Control Vacuum Valve and tested that little 2 port vac...

Hello, I recently bought my first El Camino (1987) it was originally a v6 but it has been swapped to a 305. The guy I bought it from ripped out all emissions and computer-related parts during the swap and it runs and drives great but he never finished connecting any HVAC stuff back together. He...

Hi all, I’m new here. I just picked up a 75 SS that has a leak from the box directly in front of the fan in the interior. It seems water is getting past the gasket between this box and the cowl/fresh air intake. Is this gasket - which is sort of thick and spongy - available anywhere or will I...

Hi there: I need the cover that bolts to the top of 5th gen el camino HVAC box. This is the piece that the fan is bolted to and the resistor which can be accessed from under the hood. As you have probably guessed mine has a huge crack in it. I can be reached at [email protected] Many...