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Vacuum hose diagram

Tiny
JIPJOKER
  • MEMBER
  • 2003 CHEVROLET ASTRO
I am in need of a vacuum line diagram if at all possible I have some lines I can't find where they hook up.
Sunday, July 25th, 2010 AT 9:37 PM

4 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.


https://www.2carpros.com/forum/automotive_pictures/416332_2003_chevy_astro_vacuum_diagrams_1.jpg


There you go.
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Sunday, July 25th, 2010 AT 10:59 PM
Tiny
JORN STANGE
  • MEMBER
  • 1 POST
  • 1995 CHEVROLET ASTRO
  • 4.3L
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Vents in cabin cannot be regulated. No cold air comes out except to floor.
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Friday, December 25th, 2020 AT 9:42 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

If you have floor vent, then you have vacuum to the control head.

The vacuum rotary valve behind the dash at the control panel directs vacuum to the different mode doors.

I attached diagrams for you to follow.

Roy
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Friday, December 25th, 2020 AT 9:42 AM (Merged)
Tiny
JORN STANGE
  • MEMBER
  • 1 POST
Where is the vacuum-line from the vac-reservoir connected to the intake manifold? This line is missing at the reservoir.
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Friday, December 25th, 2020 AT 9:42 AM (Merged)

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