Takes A Long Time Before Engine Starts; Possible Causes; Fuel Feed Pump Operation Fault - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

(3) Takes A Long Time Before Engine Starts

Possible causes:

1. Fuel feed pump operation fault

*Refer to the previous "List of malfunction causes by symptom" for the subsequent details.
2. Engine fault
• Low compression pressure
• Engine internal fault
• Valve timing fault
3. Control system
• Damage to the pulsar gear of the crankshaft position sensor
• Air gap of the crankshaft position sensor is large
• Damage to the pulsar gear of the camshaft position sensor
• SCV operation fault
4. Engine electrical system
• Battery fault
5. Intake system
• Air heater relay fault
• Intake air heater fault
6. Fuel system
• Fuel quality
• Fuel filter clogging
• Fuel pressure limiter fault
• Fuel line clogging, leak
7. CRS (Including the wiring harness)
• Output system (Supply pump, injector and common rail)
• Input system (Sensors and switches)
• ECU
8. Others
• Large amount of drag (Including the brakes, etc.)
1. Check the Fuel Feed Pump Operation
1. Turn the key switch ON and check that the fuel feed pump is
operating.
Factory
Operates when the key switch is turned ON.
specification
OK Go to "2. Check the DTC".
NG Check in accordance with "6.[2] FUEL SYSTEM INSPECTION
PROCEDURE - 5. Check the Fuel Feed Pump". (Refer to page 1-S291)
(1) Fuel Feed Pump
1-S28
COMMON RAIL SYSTEM
9Y1200192CRS0873US0
[A] M60 Series
[B] M-GX Series
9Y1200192CRS0872US0
KiSC issued 05, 2012 A