ENGINE DOES NOT DEVELOP FULL POWER, RUNS UNEVENLY, STALLS, OR LABORS. (Cont)

TM 9-2350-238-20-1

2-110 TROUBLESHOOTING INFORMATION (CONT).

Table 2-3. UNIT TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE DOES NOT DEVELOP FULL POWER, RUNS UNEVENLY, STALLS, OR LABORS

(CONT).

Step 2.

Check throttle controls and linkage for proper adjustment.

Adjust as required. Refer to page 2-496 and page 2-499.

Check fuel cap for open vent valve.

Step 3.

If closed, set vent valve to OPEN.

Check for leakage from fuel lines, quick-disconnects, and fittings.

Step 4.

Tighten loose disconnects and fittings. Replace damaged parts. Refer

Check for plugged secondary fuel filter or damaged gaskets.

Step 5.

If plugged or damaged, refer to page 2-475.

Check for plugged primary fuel filter or damaged gaskets.

Step 6.

If plugged or damaged, refer to page 2-471.

Check for plugged fuel lines.

Step 7.

Clean or replace as required. Refer to page 2-440, page 2-462, and

Check for damaged intake air cleaner and filter element.

Step 8.

If damaged, repair as required. Refer to page 2-446.

Check air cIeaner centrifugal fans (both forward and aft) for operation.

Step 9.

If not operating, check air cleaner blower ground leads for bad

connection. Clean ground connections with crocus cloth (item 10,

appx C). Tighten ground connections.

If still not operating, troubleshoot air cleaner blower circuit. Refer

to Electrical Circuit Symptom Index, page 2-92.

2-54