Diesel Data
: Automotive Repair
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2004
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Lancer Evolution L4-2.0L DOHC Turbo
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Repair and Diagnosis
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Evaporative Emissions System
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Evaporative Check Valve
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Testing and Inspection
Evaporative Check Valve: Testing and Inspection
CHECK VALVE CHECK
Connect a hand
vacuum pump
to the check valve, apply negative pressure and check the airtightness.