No air through vents

Cookiekid

Not-quite-so-new-guy
Jan 21, 2020
7
3
Hi im alex and I have a 1983 grand prix and im trying to fix my ac system but only comes out air through defrost,I noticed that the pink line is all broken but where can I buy the same line.
Thanks-
 

MrSony

Geezer
Nov 15, 2014
6,110
113
Des Moines, Iowa
No one makes them. Pink line goes to small nipple of HVAC vacuum ball and the big nipple gets manifold vacuum source. Whitish grey line goes to heater control valve in heater hose. Slip vacuum hose over the pink line or find one intact at a junkyard.
 
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pontiacgp

blank
Mar 31, 2006
29,396
113
Kitchener, Ontario
No one makes them. Pink line goes to small nipple of HVAC vacuum ball and the big nipple gets manifold vacuum source. Whitish grey line goes to heater control valve in heater hose. Slip vacuum hose over the pink line or find one intact at a junkyard.

My GP had no vaccum ball. The pink line is connected directly to the manifold directly behind the carb
 
Oct 14, 2008
7,108
113
Melville,Saskatchewan
As said fix it but it is quite often a leaking selector valve cover that causes that condition.
 
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melloelky

Comic Book Super Hero
Oct 22, 2017
2,987
113
mass
in a pinch(no pun intended)I've used that plastic capillarity tube(that belongs in the trash)that comes with the oil pressure gauges to repair them before.a short piece of rubber tubing on each end w/a zip tie to restore the connections.
 

MrSony

Geezer
Nov 15, 2014
6,110
113
Des Moines, Iowa
My GP had no vaccum ball. The pink line is connected directly to the manifold directly behind the carb
wonder what the reason for such a thing was. its no like none of these engines produced insufficient vacuum... maybe the turbo cars?
 

Zone_4_Lanlord

Apprentice
Feb 14, 2010
93
8
Philadelphia, Mississippi
My GP had no vaccum ball. The pink line is connected directly to the manifold directly behind the carb
Did everything work normal doing it that way
 

57 Handyman

Greasemonkey
Feb 6, 2017
158
43
Alex, fixing and replacing the hard AC vacuum hoses in the engine compartment is very doable and straight forward. I've been successful using rubber vacuum hose for bridging/connecting good and leaking sections. For the pink and white tubing, I've found black plastic tubing that is commonly used for air bag installations and readily available from NAPA. To test vacuum function of the numerous actuators, go to your local Autozone or other parts stores and borrow a vacuum tester set. Good luck!
 
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