HVAC vacuum diagrams

Tiny
COREY HOTTINGER
  • MEMBER
  • 1999 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 141,000 MILES
I have the 4 vacuum lines hooked up to my blend doors, but a black one disconnect and don't know where to reconnect it.
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Tuesday, December 24th, 2019 AT 8:15 PM

3 Replies

Tiny
STEVE W.
  • EXPERT
The black line should go to the engine vacuum source which also attaches to the vacuum reservoir under the hood. With the engine running just listed for the hiss from the vacuum leak.
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Tuesday, December 24th, 2019 AT 9:48 PM
Tiny
COREY HOTTINGER
  • MEMBER
Thank you.
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Monday, December 30th, 2019 AT 4:22 PM
Tiny
KEN
  • ADMIN
Steve W. Is one of our best! Use 2CarPros anytime, we are here to help. Please tell a friend.
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Monday, December 30th, 2019 AT 4:23 PM

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