90-96 Corvette HVAC Programmer Vacuum Connector Rebuild Service

It's 2025, and your 1990-1996 Corvette HVAC Programmer is starting to age.   The power supply capacitors have failed, or they will.  The solenoid air filters have rotted away.  And the vacuum connector has likely started to leak. 

The vacuum functionality of the programmer is responsible for how air routes through the air box.  It selects fresh air vs recirculated air.  It facilitates the defrost modes.  Finally, it determines the vent(s) where the air is delivered - top vent, bottom vent and/or front vents.  

Vacuum System Problems

• The plastic used in the factory vacuum connector assembly can become heat- and age-damaged.
• Programmers have to be removed for service due to aging.  The removal process is difficult and the vacuum assembly can be damaged during removal or reassembly.
• The plastic in the vacuum system is delicious to rodents.  About one in ten programmers that we see has rodent damage! 
• 94-96 programmers are made with a soft plastic that has become too soft over time.  It closes up under vacuum and causes the air to blow out the top or bottom vents instead of toward the driver.  

Example of 94-96 Soft Plastic Vacuum Connector

Batee.com's Solution

Until now, the solution has been to replace it with a donor programmer connector.  But there's every chance the donor had the same problems.  So we worked with a specialty plastics manufacturer to reproduce the parts needed:

• We replace the vacuum manifold (the vacuum supply to the solenoids).  The redesigned manifold allows for standard vacuum tubing to be used for any needed future repairs, as opposed to the glued-in rigid tubing used by the factory.
• We replace the vacuum coupler (the programmer's external vacuum connector)
• We replace all tubing between the vacuum coupler and the vacuum solenoids
• We return the programmer with a hex nut and washer to make it easier to reattach the car vacuum connector to the programmer
• We vacuum test the programmer - we check for leaks and we test each solenoid for proper operation

Rebuilt Programmer Vacuum System

We offer two services for Corvette HVAC programmers:

Standard Electrical Repair - the most economical option if your programmer is functioning normally. 

Complete Rebuild - we fix the electrical issues and completely replace the vacuum manifold, the vacuum connector and all vacuum tubing in the programmer.  Includes vacuum testing when complete.

Click Here to have your Programmer Serviced by Batee!