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Home >> Jeep >> 1982 >> Cherokee L6-258 4.2L VIN C 2-bbl >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Air Injection >> Air Injection Check Valve >> Description and Operation
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Air Injection Check Valve: Description and Operation




The check valve or valves prevent exhaust gases from entering and damaging the air injection pump, as back flow can occur even under normal operating conditions.

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