Common Rail Injector Replacement – Denso, Bosch, Delphi & Siemens
This 35-minute instructional video demonstrates the complete process of removing and replacing common rail diesel injectors, using a Toyota 1KD-FTV engine as the primary example.
The procedures shown apply across multiple injector systems, including Denso, Bosch (piezo and non-piezo), Delphi and Siemens/Continental.
Injector removal can appear to be a simple task, however many technicians are caught out by issues that arise during or after the job. These mistakes can become costly for both the workshop and the vehicle owner.
Common problems include:
• Engine fails to restart after injector replacement
• Damage to new injectors during installation
• Engine damage caused by fuel leaks under the rocker cover
• Incorrect procedures during reassembly and testing
Understanding how the diesel fuel system operates is critical before attempting injector replacement. Systems are not interchangeable, and incorrect assumptions often lead to misdiagnosis or repeat failures.
Learn more about the diesel fuel systems you are diagnosing:
https://www.dieselhelp.com.au/know-th...
If you require further diesel diagnostic assistance, Diesel Help provides real-time support for workshops. Members can log a job through the member portal, while non-members can join to access over-the-phone diagnostic support.
https://www.dieselhelp.com.au/diesel-...
Chapters:
00:00 Introduction & Required Tools
03:24 Disconnect Injector Harness & Remove Rocker Cover
08:30 Injector Removal
17:40 Compression Test
22:26 Refitting Injectors
30:08 Torque Settings
30:59 Return Pipe Check
33:55 Refitting Injector Pipes
#dieseldiagnostics
#injectors
#commonrail
#mechanics
#dieseltraining
#denso
#bosch
#delphi