Vacuum Harness HVAC: Service and Repair

It is not necessary to replace an entire vacuum harness in case of a localized leakage or hose collapse. A repair can be made by cutting the hose and inserting a plastic retainer.

Remove or Disconnect

1. Open instrument panel compartment and push in on both sides of compartment. This will cause compartment to "drop" open completely for access to vacuum harness.
2. Vacuum hose connectors at vacuum actuators.
^ Trace each vacuum hose to its actuator on heater module (1), noting its routing for reference during installation.
3. Pry apart vacuum interconnect and remove harness through instrument panel compartment.

Inspect

^ Vacuum hoses for leaks by attempting to blow through hose while covering opposite end with a fingertip. Replace any hose that leaks.
^ Vacuum switches and connecting hose at control for leaks and proper function. Replace faulty components.


Install or Connect

1. Vacuum harness.
2. Vacuum hose connectors to vacuum actuators. Be sure connectors are snapped securely in place.
3. Push in on sides of instrument panel compartment and return it to its normal position.