Corvette C3 Forum 1968 through 1982

78 AC Problems!

Old Aug 13, 2018 | 09:46 AM
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Default 78 AC Problems!

My AC will work on normal but when I select AC MAX even the fan stops blowing. Any ideas?
 
Old Aug 14, 2018 | 10:38 AM
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Welcome to the forum.
I guess the first thing I would look at would be the control module itself.
 
Old Aug 14, 2018 | 12:01 PM
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I have ordered one. Once I replace it I will post the results. Thanks!
 
Old Sep 5, 2018 | 09:27 AM
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Default Now to the vents

Seems like she is blowing cool air on the floor. Now I can't get it to blow through the vents.
 
Old Sep 5, 2018 | 07:26 PM
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It could be a stuck actuator, bad actuator, or leaky hose.

Does it work now on Max A/C?
 
Old Sep 5, 2018 | 08:03 PM
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It all seems to work other than the vents.
 
Old Sep 5, 2018 | 08:50 PM
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It's been a long time since I installed mine but I believe there is an actuator that controls a door that deflects the air to the floor, the vents, or the defroster vents.
 
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