TM 5-2420-231-23-1
0012
Table 1. Engine Runs Rough or Is Unstable - Continued.
012
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Start and operate engine at vari-
Engine Operation OK -
Engine Runs Rough or Is
Troubleshooting complete.
ous speeds and loads, and
Unstable - Continued
Symptom Remains - Replace high-
observe engine operation for
pressure fuel pump (WP 0142).
symptoms.
Proceed to Test Step 5.
Test Step 5. Verify That Symptom Is
Resolved.
Start and operate engine at various
Engine Operation OK -
speeds and loads, and observe engine
Troubleshooting complete.
operation for symptoms.
Symptom Remains - Repeat
troubleshooting from the beginning.
END OF WORK PACKAGE
0012-9/(10 blank)