TM 5-3805-262-20
3-4. ENGINE TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. ENGINE STARTS BUT WILL NOT RUN (Cont).
S t e p 7 . ( C o n t ).
Remove thermostat housing and thermostats (page 4-87).
T e l l a s s i s t a n t t o s t a r t e n g i n e;
i f e n g i n e c a n n o t b e s t a r t e d , t e ll
assistant to crank engine for 30 seconds while you watch coolant in
water manifold for air bubbles.
a .
b .
I f a i r b u b b l e s r i s i n g in
coolant in water manifold
are seen, notify next higher
maintenance level to replace
cylinder head gasket(s).
I f a i r b u b b l e s r i s i n g i n
c o o l a n t a r e n o t s e e n , t e ll
a s s i s t a n t t o t u r n o f f e n-
g i n e .
I n s t a l l t h e r m o s t a t s a nd
thermostat housing (page
4-89) .
Connect upper radiator hose
to thermostat housing (page
4-75) .
F i l l r a d i a t o r w i t h c o o l a n t
(page 4-71).
I n s t a l l a n d a d j u s t a l t e r n a t or
I n s t a l l e n g i n e l e f t a n d r i g h t
Notify next higher maintenance
f u r t h e r ).
drive belts (page 5-5).
side panels (page 9-17).
level (engine must be checked
5. ENGINE MISFIRES.
Step 1. Remove engine right side panels (page 9-14).
Check for wrong or contaminated fuel in fuel tank (contaminated fuel
will have a milky white appearance).
a. If wrong or contaminated fuel in fuel tank, drain and clean fuel
t a n k ( p a g e 4 - 3 2 ) , r e p l a c e f u e l f i l t e r s ( p a g e 4 - 3 8 ) , a n d r e f i ll
w i t h c o r r e c t f u e l .
b. If fuel is okay, go to step 2 below.
3-19
