Engine Does Not Rev Up

CAUSE ACTION

Improper fuel Drain fuel tank, flush system, Fill with proper fuel, change filter

Fuel transfer pump defective Test and repair as necessary.

Empty fuel tank or fuel tank vent blocked Fill tank, bleed system, check tank vent

Control lever not going to full throttle Adjust throttle linkage
position

Air in fuel system Bleed fuel system

Intercooler internally blocked or leaking Check pressure drop across intercooler. If pressure drop is more than 4 in. Hg, clean or replace as necessary

Clogged fuel filter Replace fuel filter

Fuel shutdown solenoid out of adjustment Adjust as necessary

Restricted or blocked fuel supply lines Remove restrictions or replace lines

Wax buildup in fuel Filter (cold weather Inspect fuel heater electrical
only) connector for damage. Replace fuel filter, use recommended diesel fuel.

Incorrect injection pump timing Adjust injection pump timing

Low or uneven engine compression Repair as necessary

Fuel injection pump malfunction or Replace injection pump
not adjustable