pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

Thermostatic Air Cleaner Vacuum Switch|Description and Operation|Page 2669 > < Thermostatic Air Cleaner Vacuum Switch|Description and Operation
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Thermostatic Air Cleaner Vacuum Switch: Testing and Inspection

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Valve temperature below 8O° F--valve acts as a one-way check valve. 

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Valve temperature 8O° F--valve closes. 

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Valve temperature 95° F or higher--flow is permitted in both directions.

Thermostatic Air Cleaner Vacuum Switch|Description and Operation|Page 2669 > < Thermostatic Air Cleaner Vacuum Switch|Description and Operation