gunner
gunner Reader
9/19/16 1:41 p.m.

The problem: hvac stuck in defrost and selector had no effect.

Despite strong vacuum in the engine bay, none is getting to the vacuum servo that controls vent selection.

The solution: the servo is up under the dash on the drivers side right of the accelerator and 6 to 8 inches up. There's a red vacuum tube leading into the bottom of it. On top is a lever that you can pull down and direct air to the vents facing you on the dash. Wrap a ziptie around the top of the lever (its horizontal for a couple of inches) and secure it either around the bottom of the servo (can slip off) or through the bracket below.

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