Air cond havc issue
Burning Brakes
Joined: Oct 2002
Posts: 810
Likes: 10
From: Denver CO
I'm assuming you have the electronic A/C?
This is a common issue on 96 Corvettes, so I'm not sure if this will be the same on the 93 or not. It is most likely an issue with the hvac programmer unit. Read this thread for some ideas on how to address the issue.
http://forums.corvetteforum.com/c4-g...t-blowing.html
This is a common issue on 96 Corvettes, so I'm not sure if this will be the same on the 93 or not. It is most likely an issue with the hvac programmer unit. Read this thread for some ideas on how to address the issue.
http://forums.corvetteforum.com/c4-g...t-blowing.html
Safety Car
Joined: Aug 2006
Posts: 4,147
Likes: 452
From: Port St. Lucie West Florida
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Thread Starter
O.C.
Joined: Dec 2005
Posts: 1,511
Likes: 0
From: Garden Grove Ca
I will be working on this tomorrow. I took off the right fuel rail cover and at the back of the cover looks like a check valve but it looks metal. Is this the correct thing I'm looking at?
Thread Starter
O.C.
Joined: Dec 2005
Posts: 1,511
Likes: 0
From: Garden Grove Ca
Don't know how I missed that. Okay I took the valve off. It seems like the valve does hold suction but I'm going to replace anyway. Now the two lines from the left side that exits. The angled line ( bottom ) line holds suction. The straight line does not. Is that my problem? And if so how the hell do you find where it runs to?
Safety Car
Joined: Jan 2004
Posts: 3,783
Likes: 15
From: Northern California
My 91 Vettes cruise control vacuum line directly above the battery, had a hole in it which caused the cruise control to not operate. I replaced the vacuum line and it worked perfectly again!...
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Follow the vacuum lines. it should become pretty obvious.
On my car the vacuum line for the HVAC goes through the firewall in the wiring harness bulkhead feedthrough behind the passenger side head. It's probably in the same place on your car.
On my car the vacuum line for the HVAC goes through the firewall in the wiring harness bulkhead feedthrough behind the passenger side head. It's probably in the same place on your car.
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