TM 5-2410-240-23-1
0019
Table 1. Engine Troubleshooting Procedures.
0019
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Coolant in Engine Oil or Engine
1. Inspect for leaks in oil cooler
Engine Oil Cooler or Engine Oil
Cooler Core Cracked or Dented -
Oil in Cooling System.
assembly. Refer to Engine Oil
Replace oil cooler (WP 0086).
Cooler Inspection (WP 0026).
2. Visually inspect mating sur-
Signs of Leakage in Mating
face where cylinder head and
Surface - Proceed to next step.
engine block meet for signs of
coolant leakage.
3. Remove cylinder head
(WP 0103).
4. Inspect cylinder head and cyl-
Cylinder Head Damaged -
inder head gasket for damage.
Replace cylinder head (WP 0103).
Inspect cylinder head for
Cylinder Head Gasket Damaged
cracks, breaks, and/or dam-
- Replace cylinder head gasket
age.
(WP 0103).
5. Inspect cylinder head for flat- Fault Found - Replace cylinder
ness, and mating face of cylin- head (WP 0103).
der head for faults and signs
of leakage. Refer to Cylinder
Head - Inspect (WP 0024).
6. Inspect top face of the cylinder
Fault Found - Replace engine
block for damage (WP 0024).
(WP 0051).
2. Engine Coolant Temperature Too
1. Inspect radiator fins for dirt,
Dirt/Debris Found - Remove dirt
High
debris, and/or damage
and debris from radiator fins
Damage Found - Straighten any
bent fins or replace radiator
(WP 0039).
2. Inspect coolant level.
Coolant Low - Add coolant as
required (WP 0043).
3. Visually inspect cooling sys-
Leaks Found - Make repairs as
tem for Class III leaks.
required.
a. Tighten coolant tank hose
clamps. Hose clamps OK,
replace coolant tank
(WP 0042).
b. Tighten radiator coolant
hose clamps. Clamps OK,
replace leaking hose
(WP 0042).
c.
Radiator leaking, replace
radiator (WP 0039).