215916 489 Revision A
Problem Solution
Section
Low coolant level
Fill reserve tank to proper level. Check
system for leaks.
Adding Coolant after System Drain,
page 422
Water only for coolant Replace with antifreeze.
Adding Coolant after System Drain,
page 422
Engine overloaded Reduce ground speed.
Driving Forward in Cab-Forward
Mode, page 130
Defective radiator cap Replace cap.
Inspecting Pressurized Coolant Tank
Cap, page 345
Dirty radiator screen
Clean screen.
5.9.2 Cleaning Cooler Module, page
386
Dirty radiator core
Clean radiator.
5.9.2 Cleaning Cooler Module, page
386
Cooling system dirty Flush cooling system.
5.13.1 Changing Engine Coolant, page
421
Defective thermostat Remove and check thermostat. Contact Dealer
Defective temperature gauge
or sender
Check coolant temperature with
thermometer. Replace gauge if
necessary.
Contact Dealer
Defective water pump
Contact Dealer.
–
Symptom: High fuel consumption.
Clogged or dirty air cleaner
Service air cleaner.
Cleaning Primary Air Filter, page 397
Engine overloaded Reduce ground speed.
Driving Forward in Cab-Forward
Mode, page 130
Improper valve clearance
Contact Dealer.
–
Engine out of time
Contact Dealer.
–
Dirty injector nozzles
Contact Dealer.
–
Low engine temperature
Check thermostat. Contact Dealer
Improper type of fuel Use proper fuel. 5.1.3 Fuel Specifications, page 328
Symptom: Starter cranks slowly or will not operate.
Low battery output Check battery charge.
Maintaining Battery, page 427
Loose or corroded battery connections Clean and tighten loose connections.
Maintaining Battery, page 427
Controls not in NEUTRAL
Move GSL to NEUTRAL.
Starting Engine, page 118
Controls not in NEUTRAL
Move steering wheel to locked
(centered) position.
Driving in Reverse in Cab-Forward
Mode, page 131
Controls not in NEUTRAL
Disengage header.
Engaging and Disengaging the
Header, page 257
Relay not functioning
Check relay and wire connections.
Checking and Replacing Fuses, page
463
Main fuse defective/blown
Replace main fuse.
Checking and Replacing Fuses, page
463
Key power fuse blown
Replace.
Checking and Replacing Fuses, page
463
Key switch worn or terminals loose
Contact Dealer.
–
TROUBLESHOOTING