TM 5-3895-369-14
WATER PUMP INSPECTION
(1) Open left and right engine doors
(2) Set parking brake (para2-13).
(3) Start engine (para 2-9) and bring to
operating temperature.
(a) Listen for rattle or unusual
noise coming from water
pump. If faulty, replace water
pump (para 4-65).
(b) If water pump is OK, indicates
faulty temperature sensor.
TEMPERATURE SENSOR TEST
(1) Open left engine door (para 2-14).
(2) Power up STE/ICE-R to vehicle battery
source (TM 9-4910-571-12&P, in
TK mode).
(3) Remove wire (1) from temperature
sensor unit (2) on vehicle.
(3) Connect red clip lead from W2 to wire
(1) removed from sensor unit (2).
(4) Connect black clip lead to chassis
ground.
(5) Turn engine switch on (para 2-9).
(6) Run DC voltage test #89.
(a) If VTM indicates 12 3 Vdc,
replace temperature sensor
(b) If sensor passes voltage test,
indicates faulty temperature
gauge.
4-71