TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 1. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
15. Engine Operating Temperature is Too
High (Warning Light and Warning
Class I leakage at water pump bleed holes is normal. Any Class II or
Horn On) - Continued.
Class III leakage represents a problem with water pump.
6. Check water pump for signs of 1. If engine oil or coolant is leaking
leakage (discoloration, corrosion,
from either failure bleed hole or
wetness). There are two failure
water pump shows signs of
bleed holes located on engine side
leakage, water pump has failed.
of water pump. Check failure
Replace water pump (WP 0057
bleed holes for Class II and Class
III leakage of engine oil or
coolant.
system fluid (WP 0009 00).
2. If engine oil or coolant is not
leaking from either failure bleed
hole and engine oil or coolant is
not leaking from either hole or
water pump, go to Step 7.
7. Test thermostat (WP 0053 00 or 1. If thermostat is bad, replace
thermostat (WP 0053 00 or WP
2. If thermostat is OK, fault not
corrected. Go to Step 8.
WATER
PUMP
WATER
PUMP
WATER
PUMP
SHOWN
REMOVED
FAILURE
FOR CLARITY
BLEED HOLES
401-186
0006 00-41
