LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1974 >> Magnavan >> Repair and Diagnosis >> Maintenance >> Procedures >> General Cooling System Servicing >> Testing >> Pressure Testing >> Radiator Cap
September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Radiator Cap

Visually inspect radiator cap, dip cap in water and connect to tester. Pump tester to bring pressure to upper limit of cap specifications. If cap fails to hold pressure within specifications, replace cap.

Fig 1: TESTING PRESSURE CAP
G09339701Courtesy of NOT AVAILABLE