TM 9--2350--292--20--1
0050 00--4
ENGINE RUNS ROUGH OR MISFIRES AND/OR KNOCKS
0050 00
CONTINUED FROM STEP A, F AND G
1. Replace mechanical fuel pump
(WP 0206 00).
2. Perform Step B again.
no
yes
G
Is VTM reading between 60 and 90 psi?
Go to Step I.
H
no
yes
Notify Direct Support Maintenance.
1. Replace main fuel check valve
(WP 0207 00).
2. Perform Step B again.
Is VTM reading between 60 and 90 psi?
Are there fuel spots?
Inspect engine exhaust for evidence of fuel.
no
yes
Do fuel lines and/or fittings still leak?
1. Remove front and rear cooling fans (WP 0235 00).
2. Loosen and tighten fuel lines and fittings that
show evidence of leaking.
3. Inspect lines and fittings
(TM 9--2350--292--10).
I
Go to Step K.
Notify Direct Support
Maintenance.
no
yes
Fault corrected.
CONTINUED ON NEXT PAGE
J
CONTINUED FROM STEP F
FORWARD