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1988 Chev/GMC Truck G20 5.7L Air Door
Posted to GM HVAC on 6/9/1999

This van will, on a long upgrade pull, default the air from the vents to defrost. So far I have added a second vac. resovoir, and replaced the vac. switch assy. in the control panel. Have also tested the vac. motor to the diverter and it holds good vacuum....

 
Message Closed w/FIX

car Vehicle Data

1988 Chev/GMC Truck G20

VIN 2GNBEG25K3
Engine5.7 L / 8 cyl
AffectedAir Door
ConditionsGoes to Default on Long Up-Grade
Misc.Conversion Van
Message Closed w/FIX

car Vehicle Data

1988 Chev/GMC Truck G20

VIN 2GNBEG25K3
Engine5.7 L / 8 cyl
AffectedAir Door
ConditionsGoes to Default on Long Up-Grade
Misc.Conversion Van