78 Climate Control Question

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78 Climate Control Question

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Corvette Forums >> Corvette Models >> Corvette C3 Forum >> 78 Climate Control Question

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78 Climate Control Question - 8/1/2007 9:11:29 PM

78l82owner

Posts: 3
Joined: 8/1/2007
Status: offline

I just purchased a 78 and the air blows on the floor no matter where the contol is. Does anyone know is this vacuum or mechanical control? I have not had time to dig in yet, but what should I look for? Thanks

Post #: 1

RE: 78 Climate Control Question - 8/12/2007 4:56:17 AM

Texas Jim

Posts: 445
Joined: 12/15/2005
Status: offline

Yes, the shop manual states that the blower starts as soon as the key is in the "on" position. I have the GM shop manual for the '81 Corvette. It covers only that one year and has afew things that Chilton and Hanes don't. I buy atleast the Chilton and Hanes manuals for every car I own as soon as I get the car. (the 'Vette's GM manual was a special situation for my special car. LOL) I find that no matter how much you know, the manual always comes in handy. But the manuals have mistakes sometimes, BE CAREFUL!!! ie: 2 Chilton manuals I have say that the camshaft gear(sprocket) bolts should be torqued to 65 ft. lbs. WOW!!! That #8 bolt will snap before you ever get there. But it is rare for mistakes like that.) Good luck turning wrenches on your car.

(in reply to 78l82owner)

Post #: 2

RE: 78 Climate Control Question - 8/14/2007 4:54:40 AM

78buckshot

Posts: 654
Joined: 1/28/2007
From: Michigan
Status: offline

The heater-A/C controls are a combination of cable and vacuum control, I can't remember which air diverters are controlled by vacuum but they can be accessed from under the dash.

(in reply to Texas Jim)

Post #: 3