Problem Probable Cause Corrective Action
Will Not Run
Continuously
Fuel container almost empty LPG Vapor from liquid outlet
z Fill fuel container
z Do not exceed 80% of liquid
capacity
Excess flow valve closed Reset excess flow valve
z Close liquid valve
z Wait for a “click” sound
Slowly open liquid valve
Clogged fuel filter Repair/replace as required
z See Maintenance Section, LP Fuel
Filter replacement
Plugged fuel line Remove obstruction from the fuel line
z Close liquid fuel valve
z Using caution, disconnect the fuel
line (some propane may escape)
z Clear obstruction with compressed
air
z Re-connect fuel line
z Slowly open liquid fuel valve & Leak
test
Pressure regulator freezes Check level in cooling system
z Must be full, check coolant strength
z -35F minimum
Check coolant hoses
z Watch for kinks and/or pinched
hoses
z Verify one pressure hose and one
return hose
Fuel Lock-off malfunction Repair/replace Fuel Lock-off
z See Engine Service Manual
Incorrect idle speed or ignition
problem
See Advanced Diagnostics
Engine Mechanical See Engine Service Manual
Will Not
Accelerate/Hesitat
ion During
Acceleration
Fuel container almost empty LPG Vapor from liquid outlet
z Fill fuel container
z Do not exceed 80% of liquid
capacity
Excess flow valve closed Reset excess flow valve
z Close liquid valve
z Wait for a “click” sound
z Slowly open liquid valve
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