B1 - Temperature Check (Down Flow Radiator Only)

^ Operate engine at high rpm or under load for 20 minutes. Check coolant temperature with thermometer.

WARNING: Use care when removing radiator cap to avoid injury from escaping steam or hot water.

NOTE: Remove radiator cap before running this test. Then use a known quality thermometer for checking coolant temperature.

^ Is coolant temperature within specifications?

YES -- Go to B2. B2 - Gauges/Lights

NO -- Go to B3. B3 - Thermostat