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Home >> GMC >> 1966 >> I1000 Standard Trans, Trans Mfr CD 435GL >> Repair and Diagnosis >> General Information >> Engine >> General Cooling System Service - General Information >> Testing >> Pressure Testing >> Radiator Cap

Radiator Cap

Visually inspect radiator cap. If cap looks okay, connect pressure tester to cap. See Fig 1. Pressurize tester to full radiator cap specification. Replace cap if it fails to hold pressure.

Fig 1: Pressure Testing Radiator Cap
G95C14672