Engine Noise - Kubota 07-CR-E5 Manual

07-CR-E5,07-CR-TE5,07-CR-TIE5, DM

(5) Engine Noise

Possible causes:
*Refer to the previous "List of malfunction causes by symptom" for the subsequent details.
1. Engine fault
• Low compression pressure.
• Engine internal fault
• Valve clearance fault
• Valve timing fault
2. Control system
• Damage to the pulsar gear of the crankshaft position sensor
• Air gap of the crankshaft position sensor is large
• SCV operation fault
3. Intake system
• Leak from the intake system parts
4. Fuel system
• Supply pump learning has not been performed
• Fuel quality
5. Cooling system
• Fan belt damage or tension misadjustment
6. CRS (including related fuel line)
• Output system (supply pump, injector and common rail)
• Input system (sensors)
• Engine ECU
7. Others
• Large amount of drag (including the brakes, etc.)
• Loose parts (including part interference sound)
1. Check the DTC
1. Turn the key switch ON and check the DTC.
Service
No DTC is output.
specification
OK Go to "2. Check the Crankshaft Position Sensor"
NG Check in accordance with the troubleshooting procedures for each DTC.
(a) CAN1 Connector
2. Check the Crankshaft Position Sensor
1. Refer to DTC P0335 and P0336, and implement checking of the
crankshaft position sensor.
OK Go to "3. Check the Camshaft Position Sensor".
NG Replace the crankshaft position sensor-related parts.
(1) Crankshaft Position Sensor
(NE Sensor)
3. Check the Camshaft Position Sensor
1. Refer to DTC P0340 and P0341, and implement checking of the
camshaft position sensor.
OK Go to "4. Check the Injector (Including the Pipes, etc.)".
NG Replace the camshaft position sensor-related parts.
(1) Camshaft Position Sensor
(G Sensor)
1-S42
COMMON RAIL SYSTEM
9Y3200007CRS0052US0
9Y3200007CRS0053US0
9Y3200007CRS0054US0
9Y3200007CRS0055US0
KiSC issued 03, 2022 A