Radiator Cap
Visually inspect radiator cap, then dip cap into water and connect to tester. Pump tester to bring pressure to upper limit of cap specification. See Fig 1. If radiator cap fails to hold pressure, replace radiator cap.
Visually inspect radiator cap, then dip cap into water and connect to tester. Pump tester to bring pressure to upper limit of cap specification. See Fig 1. If radiator cap fails to hold pressure, replace radiator cap.