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Dash Vents not working

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Old Jun 11, 2018 | 06:42 PM
  #1  
Kim Hil's Avatar
Kim Hil
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Default Dash Vents not working

I have a 95 LT1.

The air and heat both work great but nothing through the dash vents. Only out of the windshield defrost and floor.

I replaced the vacuum check valve under the fuel cover but it didn't help (it was cracked).

The vacuum works for the cruise so not sure if I have a vacuum leak or not.

Should I be looking at replacing the control module? (push button control module in the dash)

Any help would be greatly appreciated.
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Old Jun 11, 2018 | 06:45 PM
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Still sounds like a vacuum problem. Digital or manual control.
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Old Jun 12, 2018 | 09:23 AM
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Do you have the manual or automatic climate control? It makes a difference as to what to trouble shoot.
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Old Jun 12, 2018 | 09:54 AM
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Manual vacuum switching valve is attached to dash control.
digital or automatic climate control the control is electric only and uses programmer to switch vacuum and temperature doors.
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