C 20 3/4 Ton Pickup 2WD V8-305 5.0L VIN H 4-bbl (1982)
Thermostatic Air Cleaner Vacuum Switch: Testing and Inspection
1. With engine temperature below 85° F, tape a thermometer in air cleaner.
2. Install air cleaner cover and start engine.
3. When cold air door starts to open, remove air cleaner cover and check temperature.
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If temperature is below approximately 85° F, sensor must be replaced.
NOTE: If hoses have been removed from connectors for any reason, it is very important that they be correctly positioned for proper operation.
