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 5.
Monitor and record coolant tem-
Coolant Temperature Gauge
Gauge Indicates High
perature (TM 5-2420-231-10). The
Remains Below the Lowest Mark -
Temperature, Does Not
coolant temperature gauge should
Release coolant temperature sender
Function, or Is Inaccurate -
move above the highest mark on
eyelet (WP 0007, Figure 32) from
Continued
the coolant temperature gauge.
ground.
Proceed to step 6.
Coolant Temperature Gauge Moves
Above the Highest Mark - Replace
coolant temperature sending unit
(WP 0131).
Proceed to Test Step 9.
Coolant Temperature Gauge
Between the Lowest and Highest
Marks - Release coolant temperature
sender eyelet (WP 0007, Figure 32)
from ground.
Replace instrument cluster (WP 0177).
Proceed to Test Step 9.
6. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
7. Remove front instrument panel
right-side cover (WP 0176).
8. Remove two screws (Figure 19,
Item 2) from instrument panel clus-
ter (Figure 19, Item 1), pull instru-
ment panel cluster (Figure 19,
Item 1) from bezel (Figure 19,
Item 3), and disconnect side con-
sole wiring harness connector
(Figure 19, Item 4) (WP 0007, Fig-
ure 28) from instrument panel clus-
ter (Figure 19, Item 1) (WP 0007,
Figure 29) (WP 0177).
0021-24
