TM 5-3895-385-23-1
0032
Table 1. SPN#110, FMI#16 ― Engine Coolant Temperature Above
Engine Protection Warning Limit -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If pressure reading drops after
applying pressure to radiator,
visually inspect cooling system
for leaks in hoses and around
clamps. Replace leaking
cooling system parts as
needed (WP 0365, Vol 2).
12.Intake manifold air temperature
1. Disconnect engine ECM wiring
sensor failure.
harness connector W25 C7 from
intake manifold temperature
sensor (WP 0451, Vol 3, Figure
45).
2. Inspect intake manifold
1. If damaged replace sensor
temperature sensor and
(WP 0333, Vol 2).
connector pins for damage.
2. If not damaged, proceed to
next test.
3. Inspect engine ECM wiring
1. If damaged, replace the engine
harness connector W25 C7 and
ECM wiring harness (WP 0334,
connector pins for damage.
Vol 2).
2. If not damaged, proceed to
next test.
13.Thermostat malfunction.
1. Remove thermostat housing
(WP 0344, Vol 2).
2. Inspect thermostat for damage
1. If damaged or not operational,
and for improper operation (WP
replace thermostat (WP 0344,
0344, Vol 2).
Vol 2).
2. If not damaged, restore
equipment to original condition,
and proceed to next
malfunction.
14.Water pump is malfunctioning.
1. Remove water pump (WP 0343,
Vol 2).
2. Inspect water pump impeller for
1. If damaged, replace water
cracks, missing blades, slippage
pump (WP 0343, Vol 2).
on shaft, and other types of
damage (WP 0343, Vol 2).
0032-6