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42 se c t i O n 9 — tr O u b l e s h O O t i n g
Problem Cause Remedy
Engine Idles rough
Dirty air cleaner. 2.
Replace air filter.2.
Engine fumes are colored
Fuel quality is poor.
Too much oil.2.
The air cleaner is clogged.
Replace the poor fuel with the proper fuel.
Drain oil until the proper level is reached.2.
Clean or replace the air filter.
Engine fumes are colored
The inside of exhaust muffler is dumped with
fuel.
Injection nozzle trouble.2.
Continue to run the engine to burn off the 4.
fuel.
Clean the injection nozzle.5.
Replace the fuel with the proper fuel.6.
Engine overheats Engine overloaded.
Low coolant level.2.
Dirty radiator core or grill screen.
Coolant flow route corroded.4.
Air cleaner element missing or plugged.5.
Engine oil low.6.
Engine operated too long at slow engine 7.
speed.
Reduce the load.
Fill the coolant to the proper level.2.
Clean the radiator core and/or grill screen.
Repair the coolant flow route,4.
Replace or clean the air element.5.
Fill the oil to the proper level.6.
7.
speed.
Engine loses power Engine overheating.
Too much oil in in the engine.2.
Fuel supply being restricted.
Fuel filter plugged.4.
Fuel line pinched or kinked.5.
Insufficient or dirty fuel. 6.
Air cleaner plugged.7.
Drain oil until the correct level is attained.2.
Check the fuel lines.
Clean out the filter.4.
Repair and/or replace the fuel lines.5.
6.
old) gas.
Clean out the air cleaner.7.
Loose or corroded connections.
Low battery output.2.
Faulty starter.4.
Repair or replace the connections.
Charge or replace the battery.2.
Clean the battery terminals or replace the
battery.
Replace the starter.4.
Low battery output.
2.
Engine oil too heavy.
Loose or corroded connections.4.
Charge or replace the battery.
Clean the battery terminals or replace the 2.
battery.
Drain the oil and replace with a lighter
engine oil.
Repair or replace the connections.4.