EXCESSIVE EXHAUST SMOKE (WHITE SMOKE) AFTER ENGINE WARMUP.

TM 9-2350-238-20-1

Table 2-3. UNIT TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 6.

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

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.

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

Electrical Circuit Symptom Index, page 2-92.

If problem still exists, notify direct support maintenance.

Step 7.

7. EXCESSIVE EXHAUST SMOKE (WHITE SMOKE) AFTER ENGINE WARMUP.

Check radiator for presence of oil and engine oil for presence of coolant.

Step 1.

If problem exists, notify direct support maintenance.

Check for plugged or damaged primary and secondary fuel filters.

Step 2.

Drain water from fuel filters, refer to TM 9-2350-238-10. Replace dirty or

damaged fuel filters, refer to page 2-471 and page 2-475.

Drain and refill fabric fuel cell. Refer to TM 9-2350-238-10.

Step 3.

If problem still exists, notify direct support maintenance.

Step 4.

ENGINE HAS LOW OIL PRESSURE.

Check engine oil hoses and fittings for leaks.

Step 1.

Tighten loose connections and replace hoses or fittings as required.

Check for plugged or damaged oil filter.

Step 2.

Replace oil filter. Refer to page 2-418.

Check for damaged oil gage or transmitter.

Step 3.

Troubleshoot engine oil pressure indicator circuit; refer to Electrical

Circuit Symptom-Index, page 2-92.

If problem still exists, notify direct support maintenance.

Step 4.

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