Many 96 Corvettes experience airflow problems from their heat and air conditioning symptoms. These symptoms include –
- Slow transitions when settings are changed
- Stuck on defrost
- Air flowing from all vents or multiple vents at all times
- Air flow from the wrong vent
- Air flow stuck on one setting
- Many times these symptoms are caused by a design change to the A/C programmer for the 1996 model year.
The image above is of the connectors used in the 1996 Corvette A/C programmer. The programmer is responsible for directing engine vacuum to different servos attached to doors in your heat and A/C system to direct the air flow to the appropriate vents.
The connector pictured is for the vacuum lines to the servo and from the engine. New to 1996 was a rubberized “nipple” on the male/programmer side of the connection. The addition of the extra rubber extension was meant to provide better sealing at the vacuum line connections. In practice, they often become soft and collapse with age. When they collapse the result is one of the symptoms listed above. In this article, we will show you what modifications need to be made to your program to solve these issues. But also we would like you to consider having us repair this issue if you are local to the Tampa Bay area.
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