G 20 Van V6-262 4.3L VIN Z (1993)
Air Door Actuator / Motor: Description and Operation
Troubleshooting Hints
Use charts to verify that air is either being delivered from outlet when it should not be, or that air is not being delivered when it should be, during
operation in one or more modes.
After making quick checks of vacuum system (listening for hiss of vacuum leak, checking for proper vacuum hose connections and kinked, pinched or
misrouted hoses), be sure complaints is not caused by mechanical problem before making additional vacuum system check.