C68 Electronic Climate Control HVAC Repair Service


Common Problems

There are many electronic components which make up the C68 Electronic Climate Control, all of which are at least 25 years old:

  • The climate controller buttons, bulbs, power supply, capacitors, internal connectors and the display commonly fail.


  • The HVAC programmer module houses vacuum control solenoids and the blend door motor controller. Heat and vibration can cause the solder joints to break down, and electrolytic capacitors can fail.


  • The Blend Door Motor selects heat or cool air. Moisture and dust from the system can cause the motor to move one direction and not another.


  • The Blower Control Module transistor fails frequently.


It can sometimes be difficult to know which component(s) have failed, so we're here to help. If you don't know what the problem is with your AC, you can always contact us and ask which components to ship. Feel free to ship all four components. We'll test everything at no charge!


All Services Include

  • Free inspection of the climate control internals

  • Complete cleaning inside the controller and other modules

  • Bench test of all C68 HVAC components and all functions of the controller, programmer, blower control module and blend door motor

  • This is not an exchange service. Your components will be returned to you!

  • 1 year warranty on parts and labor



  • Repair Any One Component: $199.95

  • Repair Any Two Components: $259.95

  • Repair Three Components: $319.95

These repairs are the most common needed for the 86-89 Electronic Climate Control.
When your components arrive, we will diagnose each at no charge, then contact you with photos of the problem and an exact repair total, and wait for your approval before making any repairs.


Before You Ship

Before you send the climate control components, check the following:

  • Check the GAGES and CTSY/CLK fuses.
  • If you're having problems with the blower motor not turning, check the A/C Underhood Fuse
  • Turn on the ignition, and watch the "Ext Temp" light. If it flashes for approx one minute at power-on, then follow the procedure below to determine the error codes present:


Click Here for Service and Shipping Info

C68 Climate Control Service

This is not an exchange service - you receive your digital cluster back!

$199.95 - 319.95 - Click Here for Service and Shipping Info