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plymouth Workshop Repair Guides

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Air Injection Control Valve: Testing and Inspection
Switch/Relief Valve

    Failure of the switch/relief valve is indicated when vacuum is applied to the valve and air injection is not directed upstream (to the exhaust manifold
crossover tube), or if air is injected both upstream and downstream. If the relief valve fails, air will escape from the silencer at engine idle speed. This
valve is not serviceable and must be replaced if defective.

Powertrain Management > Emission Control Systems > Air Injection > Air Injection Control Valve > Component Information > Testing and Inspection > Air Switching Valve > Page 1685

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