FUEL SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)
TEST OR INSPECTION
ENGINE MISFIRES OR RUNS ROUGHLY. (cont)
Step 4. Check for clogged primary fuel filter (Figure 6-28).
Disconnect fuel line between fuel filter and fuel injection pump housing at fuel injection pump housing.
Place start switch in the ON position and crank engine. Refer to TM 5- 3805-261-10.
If fuel does not shoot out from disconnected--replace primary fuel filter. Refer to paragraph 6-25.