Table 4-2. Unit Troubleshooting-continued -706880174

TM 5-4210-233-14&P-1

Table 4-2. Unit Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE - Continued

ENGINE STARTS BUT STOPS OR RUNS ERRATICALLY - Continued

Step 3. Check for dirty fuel filters.

Replace fuel filters (see para 4-130).

Step 4. Remove fuel tank fill cap. If engine runs smoothly, vent in tank is blocked.

Clean/replace vent.

Step 5. Check coolant temperature.

a. Replace thermostat if engine will not heat up (see para 4-136).

Step 6. Air in system due to foaming in fuel tank.

Replace fuel tank (see para 4-169. ).

ENGINE HAS LOW POWER

Step 1. Check engine oil.

Drain and refill if oil is very dirty.

Step 2. Check engine air cleaner.

Replace engine air cleaner if dirty (see para 4-128).

Step 3. Check engine fuel filter.

Replace fuel filters (see para 4-130).

Step 4. Check brakes are not dragging.

Check for slow air leak in brake system and adjust or repair brakes.

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