918070/FP0811 5-1 Printed in U.S.A.
CHAPTER 5 – TROUBLESHOOTING
ENGINE
Problem Possible Cause Corrective Action
Engine will not start No fuel Add fuel to tank; bleed air from fuel system
Incorrect engine oil SAE grade Replace engine oil with proper grade; see “Fluid
Capacities/Lubricants” on page 1-4
Incorrect fuel grade Replace fuel with proper grade; see “Fluid Capaci-
ties/Lubricants” on page 1-4
Loose, or corroded starter circuit connections Repair starter circuit; contact authorized service
center
Incorrect engine valve clearance Adjust valve clearance; contact authorized service
center
Battery power insufficient Charge battery or replace if necessary
Fuel filter contaminated Clean fuel filter
Malfunctioning fuel injector(s) Repair fuel injector(s); contact authorized service
center
Glow plug system not working Replace glow plug system. Contact authorized ser-
vice center
Starter not working / pinion fails to engage Repair starter/pinion; contact authorized service
center
Rough running engine Incorrect fuel grade Replace fuel with proper grade; see “Fluid Capaci-
ties/Lubricants” on page 1-4
Incorrect engine valve clearance Adjust valve clearance; contact authorized service
center
Fuel line leakage Replace fuel line; contact authorized service cen-
ter
Malfunctioning fuel injector(s) Repair fuel injector(s); contact authorized service
center.
Insufficient engine power Fuel line leakage Replace fuel line
Air filter contaminated Service air filter; see “Air Cleaner Service” on
page 4-10
Engine not at operating temperature Warm up the engine
Incorrect fuel grade Replace fuel with proper grade; see “Fluid Capaci-
ties/Lubricants” on page 1-4
Incorrect engine valve clearance Adjust valve clearance; contact authorized service
center
Oil level too high Adjust oil level; see “Changing Engine Oil and Fil-
ter” on page 4-10
Malfunctioning fuel injector(s) Repair fuel injector(s); contact authorized service
center
Engine overheated Check cooling system
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