ENGINE RUNS ROUGH OR LACKS POWER.

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

ENGINE (CONT)

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/ICE-R CI Engine GO-NO GO Chain does not diagnose cause of problem, return to

this troubleshooting table.

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

diagnostic mode.

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

Aiphabeticailindex (page Index-1) and repair or replace

damaged or faulty components.

If malfunction is not found, notify direct support maintenance.

5. ENGINE RUNS ROUGH OR LACKS POWER.

Step 1. Check If air cleaner restrictor indicator light is lit.

If indicator light is lit, replace air cleaner element (page 4-35).

If indicator light is not lit, go to step 2.

Step 2. Check for clogged exhaust system.

If exhaust system is clogged, replace components as required

(pages 4-80, 4-81, 4-85).

If exhaust system is not clogged, go to step 3.