TM 9-2350-238-34-12 - 4 . T R O U B L E S H O O T I N G I N F O R M A T I O N ( C O N T ) .T a b l e 2 - 1 . D I R E C T S U P P O R T T R O U B L E S H O O T I N G ( C O N T )M A L F U N C T I O NT E S T O R I N S P E C T I ONC O R R E C T I V E A C T I O NS t e p 2 . C h e c k e n g i n e s h u t d o w n h a n d l e .P u s h e n g i n e s h u t d o w n h a n d l e a g a i n s t h u l l .Step 3. C h e c k f o r w a t e r i n p r i m a r y a n d s e c o n d a r y f u e l f i l t e r s .Drain water from fuel filters, refer to TM 9-2350-238-10; or replacedirty fuel filters, refer to TM 9-2350-238-20-1.Step 4. Check operation of air box heater by feeling air box heater on top of engine,a . I f a i r b o x h e a t e r i s n o t w a r m , t r o u b l e s h o o t a i r b o x h e a t e r . R e f ert o T M 9 - 2 3 5 0 - 2 3 8 - 2 0 - 1 .b. If air box heater is warm, troubleshoot engine fuel system.R e f e r t o T M 9 - 2 8 1 5 - 2 0 2 - 3 4.Step 5. C h e c k f o r f a u l t y e n g i n e p a r t s.T r o u b l e s h o o t e n g i n e f u e l s y s t e m a n d c h e c k e n g i n e c o m p r e s s i o n.R e f e r t o T M 9 - 2 8 1 5 - 2 0 2 - 3 4 .4 . E N G I N E L A B O R S , R U N S U N E V E N L Y , S M O K E S T O O M U C H , L A C K S P O W E R , O R U S EST O O M U C H O I L .Check for faulty engine systems.T r o u b l e s h o o t e n g i n e.5 . E N G I N E I S N O T G E T T I N G E N O U G H A I R .R e f e r t o T M 9 - 2 8 1 5 - 2 0 2 - 3 4 .Step 1. Check for clogged or dirty air cleaner filter elements.Clean clogged or dirty air cleaner filter elements, refer to TM 9-2350-238-10; or replace air cleaner filter elements and seal assemblies,r e f e r t o T M 9 - 2 3 5 0 - 2 3 8 - 2 0 - 1 .2 -6
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