Operation CHARM
: Car repair manuals for everyone.
Home
>>
Chevy Truck
>>
1997
>>
G 2500 3/4 Ton Van V8-6.5L DSL Turbo VIN F
>>
Repair and Diagnosis
>>
Heating and Air Conditioning
>>
Testing and Inspection
>>
Component Tests and General Diagnostics
>>
Cool & Hot Air Check
Cool & Hot Air Check
With mode knob in "DEFROST," temp knob in "HOT," fan switch in "HIGH" temperature from the defroster outlet should be above the temperature outside the vehicle.