TM 9-2350-247-20-1
ENGINE RUNS ROUGH, STALLS, OR DOES NOT PUT OUT FULL POWER
(M548A3)Continued
0017 00
FY
1. Check and see if both electric fuel pumps are working.
2. Are both electric fuel pumps working?
YES
NO
GO TO GY (PAGE 0017 00-9)
2FY
1. Flow test electric fuel pumps (WP 0148 00).
2. Is fuel flow from electric fuel pumps 112
to 212
quarts (1.4 to 2.4
liters) per minute?
YES
NO
2FYN
1. Replace defective electric fuel pumps
(WP 0151 00).
2. Verify no faults found.
3FY
1. Inspect fuel lines and connections.
2. Tighten hose connections between fuel compartment and electric
fuel pumps if needed.
3. Remove left rear and right forward fuel access covers
(WP 0163 00).
4. Clean screens at the end of each tube.
5. Remove blockage from pickup tubes.
6. Are any fuel lines kinked or leaking?
YES
NO
3FYN
1. Internal fuel restriction. Beyond unit
repair.
2. Notify your supervisor.
4FY
1. Install left rear and right forward fuel compartment access covers
(WP 0163 00).
2. Tighten and/or replace fuel lines as needed (WP 0168 00).
3. Verify no faults found.
0017 00-8