Looking for diagram for vaccum system for A/C / heat for 91 Bronco

Tiny
TERRY79
  • MEMBER
  • 1991 FORD BRONCO
I have a 91 bronco. When I turn the a/c on it blow out the defrost/heater vents. I have determined that the vaccum valve that switches from the defrost vent to the a/c vent is not being actuated. I checked and there is no vaccum on the hose going to it. Is there a diagram showing the vaccum system for the heat/a/c system so I can troubleshoot it?ThanksTerry
Tuesday, October 11th, 2011 AT 11:02 PM

2 Replies

Tiny
RIVERMIKERAT
  • MECHANIC
  • 6,110 POSTS
Here's what I could find. I'm guessing it should get vacuum from the vacuum reservoir.
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Tuesday, October 11th, 2011 AT 11:12 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Here you go
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Tuesday, October 11th, 2011 AT 11:13 PM

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