TM 5-3805-262-203-4. ENGINE TROUBLESHOOTING (CONT) MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION4. 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 llassistant to crank engine for 30 seconds while you watch coolant inwater manifold for air bubbles.a .b .I f a i r b u b b l e s r i s i n g incoolant in water manifoldare seen, notify next highermaintenance level to replacecylinder head gasket(s).I f a i r b u b b l e s r i s i n g i nc o o l a n t a r e n o t s e e n , t e lla 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 ndthermostat housing (page4-89) .Connect upper radiator hoseto thermostat housing (page4-75) .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 orI n s t a l l e n g i n e l e f t a n d r i g h tNotify next higher maintenancef u r t h e r ).drive belts (page 5-5).side panels (page 9-17).level (engine must be checked5. ENGINE MISFIRES.Step 1. Remove engine right side panels (page 9-14).Check for wrong or contaminated fuel in fuel tank (contaminated fuelwill have a milky white appearance).a. If wrong or contaminated fuel in fuel tank, drain and clean fuelt 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 llw 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
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