COOLANT FLOW IN SYSTEM
(1) Remove radiator cap.
(2) Run engine to operating temperature.
(3) Visually check coolant flow through
(a) If coolant flows freely through
radiator, but water temperature
remains above normal, notify
Direct Support about this fault.
(b) If coolant does not flow freely, shut
down engine (TM 10-3930-673-10)
and flush and refill coolant system