Toro 22337CP Operator's Manual page 37

Problem
The engine runs, but knocks or misses.
The engine will not idle.
The engine overheats.
Possible Cause
6. The spark arrestor screen is clogged.
7. The fuel pump is damaged.
1. Dirt, water, stale fuel, or incorrect fuel
is in the fuel system.
2. Engine overheating.
3. There is air in the fuel.
4. The injection nozzles are damaged.
5. Low compression
6. The injection pump timing is incorrect.
7. Excessive carbon build-up.
8. Internal wear or damage.
1. The fuel tank vent is restricted.
2. Dirt, water, stale fuel, or incorrect fuel
is in the fuel system.
3. The air cleaner filters are dirty.
4. The fuel filter is clogged.
5. There is air in the fuel.
6. The fuel pump is damaged.
7. Low compression
1. More coolant is needed.
2. Restricted air flow to the radiator.
3. The crankcase oil level is incorrect.
4. Excessive loading.
5. Incorrect fuel is in the fuel system.
6. The thermostat is damaged.
7. The fan belt is loose or broken.
8. Injection timing is incorrect.
9. Coolant pump is damaged.
37
Corrective Action
6. Clean or replace the spark arrestor
screen.
7. Contact your Authorized Service
Dealer.
1. Drain and flush the fuel system; add
fresh fuel.
2. Refer to Engine Overheats.
3. Bleed nozzles and check for air leaks
at the fuel hose connections and fittings
between the fuel tank and engine.
4. Contact your Authorized Service
Dealer.
5. Contact your Authorized Service
Dealer.
6. Contact your Authorized Service
Dealer.
7. Contact your Authorized Service
Dealer.
8. Contact your Authorized Service
Dealer.
1. Loosen the cap. If the engine runs with
the cap loosened, replace the cap.
2. Drain and flush the fuel system; add
fresh fuel.
3. Service the air filters.
4. Replace the fuel filter.
5. Bleed the nozzles and check for air
leaks at fuel hose connections and
fittings between the fuel tank and
engine.
6. Contact your Authorized Service
Dealer.
7. Contact your Authorized Service
Dealer.
1. Check and add coolant.
2. Inspect and clean the radiator screen
with every use.
3. Fill or drain to the full mark.
4. Reduce load; use lower ground speed.
5. Drain and flush the fuel system; add
fresh fuel.
6. Contact your Authorized Service
Dealer.
7. Contact your Authorized Service
Dealer.
8. Contact your Authorized Service
Dealer.
9. Contact your Authorized Service
Dealer.