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Home >> Plymouth >> 1989 >> Horizon Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Testing >> Air Aspirator Valve

Air Aspirator Valve

Remove air supply hose from aspirator valve inlet. With engine at idle in neutral, the negative exhaust pulses (vacuum) can be felt at the inlet. If hot exhaust gases are felt escaping from the valve, the valve must be replaced.