Should there be two vacum lines to the heater AC.

Tiny
ANONYMOUS
  • 1985 CHEVROLET EL CAMINO
  • 55,000 MILES

Should there be two vacum lines to the heater AC controls and if so where do they go? I only have the defrost/heat under dash no air thru dash vents and am at a loss to figure this out.

Sunday, February 17th, 2013 AT 9:11 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,533 POSTS

One feed line from outside in the engine compartment to the ac control head. From there, it is controlled by the control head to the vacuum servos.

Roy

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Sunday, February 17th, 2013 AT 9:18 PM

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