ENGINE RUNS ROUGH OR LACKS POWER. cont'd

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

ENGINE (CONT)

WARNING

D i e s e l fuel is flammable. Do not perform this procedure near fire, flame, or

sparks. Injury or death to personnel could result.

Step 3. Check for clogged fuel cap (vent).

If fuel cap is clogged, clean vent or replace fuel cap

(page 4-47).

If fuel cap is not clogged, go to step 4.

Step 4. Check for water/contamination in fuel tank.

If there is water/contamination in fuel tank, drain fuel tank until

only fuel drains out (page 4-40).

If there is no water/contamination in fuel tank, go to step 5.

Step 5. Check for air leaks and damaged fuel lines.

If there are air leaks or damaged fuel lines, tighten loose

connections or replace fuel lines (pages 4-25, 4-44).

If there are no air leaks or damaged fuel lines, go to step 6.

NOTE

If STE/lCE-R Cl Engine GO-NO GO Chain does not diagnose cause of problem, return to

this troubleshooting table.

Step 6. Perform STE/lCE-R Cl Engine GO-NO GO Chain test procedures in the DCA

diagnostic mode.

If malfunction is found, refer to List of Tasks (page iii) or

Alphabetical Index (page Index-1) and repair or replace

damaged or faulty components.

If malfunction is not found, go to step 7.

Step 7. Check valve adjustment (page 4-5).

If valves require adjustment, adjust valves to proper tolerances

(page 4-5).

If valves do not require adjustment, notify direct support

maintenance.

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