A/C Related Question

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Dec 29, 2010 | 08:38 PM

raalonso

Thread Starter

6th Gear

Joined: Dec 2010

Posts: 6

Likes: 0

From: Miami Fl

A/C Related Question

I have an 81 vette, AC works great but air does not blow from the top vents on the dash. Any idea why? Thanks

Dec 30, 2010 | 09:36 AM

tommyleea

Racer

Joined: Apr 2006

Posts: 340

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From: Warrensburg MO

I have the same problem, but don't have an answer yet. It appears to be a blend door actuator issue, or the switch behind the control panel. On mine I do hear a hissing from the switch, so I am going to assume mine is the switch. I just haven't got around to taking it apart yet.

Dec 30, 2010 | 09:36 AM

79vetter

Drifting

Joined: Feb 2005

Posts: 1,583

Likes: 5

From: Richardson Tx.

You probably have a vacuum line that has come off - or is pinched up in the dash. You'll have to get in there and trace the vacuum lines to see where the issue is.

Dec 30, 2010 | 10:00 AM

raalonso

Thread Starter

6th Gear

Joined: Dec 2010

Posts: 6

Likes: 0

From: Miami Fl

Thanks. I appreciate the reponse. I'll have to get in there and see what it is.

Dec 30, 2010 | 10:12 AM

Vette5.5

Le Mans Master

Joined: Sep 2004

Posts: 5,116

Likes: 5

From: Livonia MI

Symptom's point to an under dash vacuum leak, possibly an actuator. You're wanting to get this fixed very soon, as will cause the engine to run lean, and maybe affect the power brake's. If DIY, pick up a small Mity Vac hand held test kit to help with the diagnostic's. Good for bleeding brake system's, too.

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