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Home >> Toyota >> 1988 >> 4Runner Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Component Testing >> Check Valve "A" >> Land Cruiser

Land Cruiser

Check valve and blow through both sides. Ensure air does not flow from manifold side to ASV side and does flow from ASV side to manifold side. Replace valve if defective.

NOTE: Use CHECK VALVE "A" procedure for testing check valve on Pickup models.
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