A/C vacuum ball • GBodyForum.com - 1978-1988 GM G-Body Cars & Community

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A/C vacuum ball

3 posts • Page 1 of 1

sslover85: Apprentice; Posts: 38; Joined: Sat Feb 20, 2010 10:37 am

A/C vacuum ball

by sslover85 on Thu Sep 01, 2011 2:56 pm

what is the purpose of this ball??? I have my A/C stuff connected to a vacuum port on the manifold. Do I need this ball??? Thanks!!!

84cutspreme: Royal Smart Person; Posts: 829; Joined: Thu Jun 04, 2009 8:59 pm

Re: A/C vacuum ball

by 84cutspreme on Thu Sep 01, 2011 4:42 pm

my answer is yes...I took mine off originally. I had problems with a/c & heat operation. I re-installed the ball and all my problems went away.

tc1959: Royal Smart Person; Posts: 2879; Joined: Wed Dec 23, 2009 10:15 am; Location: Surprise AZ.

Re: A/C vacuum ball

by tc1959 on Thu Sep 01, 2011 5:08 pm

sslover85 wrote:what is the purpose of this ball??? I have my A/C stuff connected to a vacuum port on the manifold. Do I need this ball??? Thanks!!!

It keeps a reserve of vacuum so your ac or defrost will work on acceleration. Without it your air flow will drop to the floor.

3 posts • Page 1 of 1

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