Symptom
Problem
Solution
Section
Incorrect timing
Contact Dealer.
Contact Dealer
Engine oil viscosity too high
Use recommended oil.
5.1.3 Lubricants,
Fluids, and System
Capacities, page
236
Intake air restriction
Service air cleaner.
Cleaning Primary
Air Filter, page 283
Clogged fuel
fi
lter
Replace primary fuel
fi
lter, and
if necessary, replace secondary
fuel
fi
lter.
5.10.1 Maintaining
Fuel Filters, page
288
High back pressure
Clean out or replace exhaust
canisters.
5.9.5 Inspecting
Exhaust System,
page 286
Improper type of fuel
Use proper fuel.
High or low engine
temperature
Remove and check thermostat.
Improper valve clearance
Lack of power
Faulty injectors
Contact Dealer.
Engine
temperature
below normal
Defective thermostat
Remove and check thermostat.
Contact Dealer
Check coolant level.
5.6.6 Checking
Engine Coolant
Level, page 262
Engine overheated
Check thermostat.
Contact Dealer
Low engine oil pressure
5.6.1 Checking
Engine Oil Level,
page 256
Warning alarm
sounds
Low charge oil pressure
Check oil level.
5.6.3 Checking
Hydraulic Oil, page
258
214053
361
Revision A
Summary of Contents for M1240
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