TM 10-4320-315-24
Table 2-2. Troubleshooting Procedures - (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
ENGINE CRANKS, BUT DOES NOT START OR IS HARD TO START - (Cont)
Step 2.
Check battery connections for tightness and cleanliness.
Tighten loose connections (para. 2-16). Clean dirty connections.
Step 3.
Check to see if air filter element is clean.
Clean or replace air filter element (TM 10-4320-315-10).
Step 4.
Check to see if fuel lines are damaged or leaking.
Replace damaged fuel lines (para. 2-38, 2-43, and 2-49).
Step 5.
Check to see if drain plugs on primary fuel filters are leaking or missing.
Replace primary fuel filter (para. 2-43).
Step 6.
Check to see if primary fuel filter is clean.
Replace filter (para. 2-43).
Step 7.
Disconnect outlet line on fuel supply pump. Using manual pumping lever, check to see if enough
fuel is being pumped.
If enough fuel is being pumped, go to step 8. If not enough fuel is being pumped, check
condition of fuel supply pump diaphragm (para 2-51).
Step 8.
Using multimeter set to 200-ohm scale, check reading across fuel solenoid coil as follows:
Remove screw and remove plug from fuel solenoid.
Place multimeter leads on pins 1 and 2. If reading is not between 60 and 70 ohms, replace fuel
solenoid.
If malfunction still exists, notify direct support maintenance.
2-17
