TM 5-3805-262-20
3-4. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
11. ENGINE NOISE (LOW AND HIGH RPM) (CONT)
S t e p 2 . ( C o n t ).
Remove radiator cap slowly to re-
l i e v e p r e s s u r e b e f o r e c o m p l e t e ly
r e m o v i n g w h e n e n g i n e i s h o t.
F a i l u r e t o d o s o c o u l d c a u s e
s e v e r e b u r n s d u e t o h o t s t e a m
s c a l d i n g y o u . I f y o u a r e s c a l d ed
b y h o t s t e a m , s e e k m e d i c a l a i d
immediately.
Carefully remove radiator cap,
and measure coolant tempera-
ture using a thermometer (be
sure thermometer does not
touch any metal parts of
r a d i a t o r ) .
Coolant temperature must be
between 175 to 202 degrees F.
a .
b .
If coolant temperature is
not between 175 to 202 de-
grees F, remove and test
thermostats (page 4-87) .
If coolant temperature is between 175 to 202 degrees F, rein-
stall radiator cap, close and lock radiator cap access panel .
Notify next higher maintenance level (additional tests must be
performed).
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