Engine & fuel system
2 documented faults — symptoms, causes and workshop fixes.
Slow or no engagement of rear differential lock following repair or service
Cause
Incorrect specification rear differential oil used.
Repair
- Renew rear differential oil. Ensure rear differential oil to manufacturer's specifications.
Data: Motorwise Workshop. Bulletin 1.
Unable to remove in-tank fuel pump
Overview
- Affects
- All models with in-tank fuel pump assembly retaining ring.
- Remedy
- Fit new part
Cause
Retaining ring for fuel pump assembly seized to fuel tank.
Repair
- Cut through retaining ring to enable removal from fuel tank. Avoid damaging fuel tank threads.
- Inspect fuel tank threads for damage. If fuel tank threads damaged or new retaining ring will not tighten: Fit new fuel tank.
Data: Motorwise Workshop. Bulletin 2.
Glossary
Technical terms used in this guide.
- In-Tank Fuel Pump
- The fuel pump mounted inside the fuel tank
Frequently asked questions
What are the common faults with the Toyota Landcruiser 4.6 VVTi?
This guide contains two workshop bulletins for the Toyota Landcruiser 4.6 VVTi. Of these, two concern the engine and fuel system. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Landcruiser 4.6 VVTi have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Toyota Landcruiser 4.6 VVTi faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.