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Home >> Jeep >> 1988 >> Wrangler Base, 4.2 C, Standard >> Repair and Diagnosis >> Engine Performance >> System >> PVC & Crankcase Ventilation System >> Maintenance >> PCV Valve

PCV Valve

Replace PCV valve every 30,000 miles. Valve is located on rocker arm cover of 4-cylinder, 6-cylinder and V6 models and on intake manifold of V8 models.