TROUBLESHOOTING
Symptom
Problem
Solution Section
Incorrect timing
Contact Deale
r.
Contact Deale
r.
Engine oil viscosity too high Use recommended oil.
Lubricants, Fluids,
and System
Capacities, page
199
Intake air restriction
Service a ir
cleaner.
Air Intake S
ystem,
page 230
Clogged fuel filte r
Replace primary fuel filter, and
if necessary, replace secondary
fuel filter.
Maintaining Fuel
Filters, page 238
High back pressure
Clean out or replace muffler.
Exhaust System,
page 255
Improper type of fuel Use proper fuel.
Fuel
Specifications,
page 198
High or l
ow engine
temper a
ture
Remove a
nd check thermostat.
Improper valve clearance
Lack of power
Faulty inje cto rs
Contact Dealer.
Engine
tempe
rature below
norma
l
Defective thermostat Remov
e and check thermostat.
Contact Dealer.
Check c oolant level.
Checking Coolant
Level, page 246
Engine overheated
Check thermostat. Contact Dealer.
Low engine oil pressure
Che
cking Engine
Oil
Level, page
227
War
ning alarm
sou
nds
Low transmission oil pressure
Check oil level.
Checking and
Filling Hydraulic
Oil, page 288
169890 319 Revision A
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