TM 5-3805-261-20
FUEL SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
b.
ENGINE MISFIRES OR RUNS ROUGHLY.
Step 1. Check for air in fuel system. Refer to paragraph 6-15.
Bleed injection lines. Refer to paragraph 6-15.
Step 2. Check fuel pressure with fuel pressure gage (Figure 6-27) or use STE/ICE Test 50. Refer to paragraph 6-
13.
Remove fuel pressure switch from fuel injection pump. Refer to paragraph 7-94.
Install fuel pressure gage.
Start engine and run at high idle. Pressure should read at least 15 psi. Refer to TM 5-3805-261-10.
Figure 6-27.
If pressure is low, proceed with steps 3 and 4.
6-38
