TM 5-2420-231-23-1
0021
Table 1. Engine Coolant Temperature Gauge Indicates High Temperature,
Does Not Function, or Is Inaccurate - Continued.
021
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Engine Coolant Temperature
Gauge Indicates High
Temperature, Does Not
Function, or Is Inaccurate -
Continued
Figure 20. Coolant Temperature Sending Unit.
0021
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Monitor and record coolant tem-
Coolant Temperature Gauge
perature gauge (TM 5-2420-231-
Remains Above the Lowest Mark -
10). The coolant temperature
Proceed to step 5.
gauge should move below the low-
Coolant Temperature Gauge Moves
est mark on the coolant tempera-
Below the Lowest Mark - Replace
ture gauge.
coolant temperature sender (WP 0131).
Proceed to Test Step 9.
5. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).