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Page Title:
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT - continued |
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 TM 9-2320-361-24-1
0006 00
MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)
Table 1. Engine Troubleshooting Procedures (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Check in-tank pump pressure
If pressure is below 4 psi (27.58 kPa)
2. ENGINE CRANKS BUT
replace in-tank fuel pump
WILL NOT START
(Contd)
5. Turn accessory switch to ON
1. If pressure is below 2 psi
position and check pressure at
(14.0 kPa), remove and replace
secondary and final fuel filters
primary fuel filter (WP 0063 00),
and recheck pressure at
secondary and final fuel filters.
If pressure is still below 2 psi
(14.0 kPa), replace secondary and
final fuel filters (WP 0064 00).
2. If filters are clean and pressure is
still below 2 psi (14.0 kPa) at
secondary and final fuel filter,
inspect fuel lines for kinks, bends,
breaks, loose connections,
restrictions, and leaks. Repair fuel
lines if damaged.
6. Check fuel tank pickup tube for
Remove restrictions from fuel tank
restrictions (WP 0061 00).
pickup tube (WP 0061 00).
7. Check fuel pump for proper fuel
1. If fuel pressure gauge reads no
pressure (WP 0061 00).
pressure, inspect electrical
connections.
2. If electrical connections are
properly connected, replace fuel
pump (WP 0061 00).
8. Check fuel shutoff for proper
Adjust fuel shutoff for proper
adjustment (WP 0071 00).
operating conditions (WP 0071 00).
1. Check starting system circuits
If starting system circuits are
3. STARTER CRANKS
(WP 0012 00, table 2,
damaged, repair or replace.
ENGINE SLOWLY
malfunction 2).
Use proper engine oil for climate
2. In cold weather, make sure proper
conditions.
engine oil is being used and/or
replace oil (WP 0020 00).
3. Check water pump and belt-driven
1. If water pump drive pulley will
accessories. Remove all belts
not turn, replace water pump
Manually turn drive pulley of each
2. If any drive pulley accessory will
accessory and water pump
not turn, replace accessory
1. Check air cleaner for restrictions
Remove restrictions from air cleaner.
4. ENGINE STOPS
(WP 0006 00, table 1,
DURING NORMAL
malfunction 1).
OPERATION
If water or contamination is present,
2. Check fuel system for
remove fuel tank (WP 0060 00).
contamination and restrictions
(WP 0006 00, table 1,
malfunction 2).
3. Check for restrictions in exhaust
If exhaust system is damaged or
system. Ensure exhaust system is
restricted, replace damaged parts
not bent, restricted, or damaged.
vehicles, refer to WP 0074 00).
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