How to remove and install fuel injectors on Volvo 740?

To remove & install fuel injectors for 2.3L 4-Cylinders & 2.8L 6-Cylinders, release fuel system pressure, disconnect the negative battery cable, and disconnect fuel lines, electrical connectors, and vacuum hoses from the injection manifold & pressure regulator. Unbolt the pressure regulator, remove the injector cover plate if present and remove the fuel injection manifold with the injectors as a single unit. Secure the manifold in a holding fixture to remove the fuel injectors. For the installation, check the fuel injector O-rings and replace them if necessary, coat them with petroleum jelly, and install the injectors in the manifold. Reconnect the manifold and injectors, tighten the retaining bolts and connect the pressure regulator, vacuum hose, fuel lines, and electrical connectors before connecting the negative battery cable and starting the vehicle to check for leaks. For 2.9L 6-Cylinder engine, refer to the same steps, be sure to release fuel pressure, disconnect battery, remove fuel rail protective cover and lines. Label and remove electrical connectors then remove the fuel rail assembly and injectors. Lubricate O-rings on the new injectors, install them into the fuel rail and reassemble the components ensuring the O-rings are properly seated and checking for leaks after starting the vehicle. For 2.3L and 2.4L 5-Cylinder engines, you will need to remove the throttle pulley cover; remove fuel pressure, disconnect battery; remove parts such as upper air charge pipe, fuel rail cover. Disconnect the vacuum hose, lift the fuel rail using injectors, and replace the injectors as needed and make sure to keep the rubber dampers in place. Lubricate new O-rings and install injectors, and reassemble fuel rail and other components, reconnect the battery and search for leaks. To check the operation of the injector, listen to the click on a mechanic's stethoscope or screwdriver, if all injectors click, but problems still exist, then check fuel pump pressure and carry out a drop test of cylinders. For non-clicking injectors, use a "noid" light to test the injector driver circuit, if the light flashes but the injector does not click, then replace the injector. If the light does not flash, test the circuit for faults, making sure the resistance is less than 5.0 ohms, and replace the ECM, if necessary.

What precautions should be taken with Fuel Injectors when removing and refitting them on Volvo V70?

Be careful to not get dirt in the injection pump or injector pipes during this procedure! The first step in this process is to remove the plastic cover from the top of the engine. For D5244 T to T3 engines, release the clamps and remove the charge air hose that is connected to the intake manifold, remove the crankcase breather hose from the cylinder head cover, pull the connectors from the glow plugs, and make sure the areas around the high-pressure fuel pipe unions are clean. Undo unions and take off high-pressure fuel lines, discard them and get ready for fuel spillage by plugging ports. Disconnect the fuel return hoses from the injectors, take note of their location and disconnect the injector wiring plugs. Unscrew the screws holding each injector clamp in place, remove the injectors, removing the sealing washers and other parts, marking injectors for identification if they are to be refitted. For D5244 T4 to T7 engines, remove the cross-stay between the suspension turrets, ensure the rubber shield over the fuel injectors is removed and ensure cleanliness around the high-pressure fuel pipe unions. Follow similar steps to remove the high pressure fuel pipes, disconnect the return hoses and wiring plugs, unscrew the injector clamps and recover the metal washers. Store injectors in an upright position if they are to be refitted. During refitting, make sure injectors and seats are clean and install new parts, tightening screws evenly. Install new high pressure pipes and tighten unions to specified torque, followed by the injector retaining screws. Check the condition of fuel return hoses including 'Class' identification number for D5244 T to T3 engines and software updates to be carried out for new injectors for D5244 T to T7 engines. Finally, step on the accelerator pedal and start the engine, checking for fuel leaks after running at fast idle to purge trapped air.

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27 Fuel Injectors found

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Volvo Injector Part Number: 30757534
$123.83 MSRP: $162.45
You Save: $38.62 (24%)
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- C30 | 2008-2013 | T5, T5 R-Design | 5 Cyl 2.5 L GAS
- C70 | 2006-2013 | T5 | 5 Cyl 2.5 L GAS
- S40 | 2005-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- S60 | 2012-2016 | T5, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus | 5 Cyl 2.5 L GAS
- S60 Cross Country | 2016 | T5 Platinum | 5 Cyl 2.5 L GAS
- V50 | 2005-2011 | 2.4i, i, T5, T5 R-Design | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- V60 | 2015-2016 | T5, T5 Platinum, T5 Premier, T5 Premier Plus | 5 Cyl 2.5 L GAS
- XC60 | 2015-2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
- XC70 | 2016 | T5, T5 Platinum, T5 Premier | 5 Cyl 2.5 L GAS
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Volvo Injector Part Number: 30777501
$123.83 MSRP: $162.45
You Save: $38.62 (24%)
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S80 | 2007-2014 | 3.2 | 6 Cyl 3.2 L GAS
- V70 | 2008-2010 | 3.2 | 6 Cyl 3.2 L GAS
- XC60 | 2010-2015 | 3.2, 3.2 R-Design | 6 Cyl 3.2 L GAS
- XC70 | 2008-2015 | 3.2 | 6 Cyl 3.2 L GAS
- XC90 | 2007-2014 | 3.2, 3.2 R-Design | 6 Cyl 3.2 L GAS
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Volvo Injector Part Number: 30777502
$123.83 MSRP: $162.45
You Save: $38.62 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S60 | 2011-2016 | T6, T6 Polestar, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- S80 | 2008-2015 | T6 | 6 Cyl 3.0 L GAS
- V60 | 2015-2016 | T6 Polestar, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- XC60 | 2010-2016 | T6, T6 Ocean Race, T6 Platinum, T6 Premier, T6 R-Design, T6 R-Design Platinum | 6 Cyl 3.0 L GAS
- XC70 | 2009-2015 | T6 | 6 Cyl 3.0 L GAS
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Volvo Injector Part Number: 8653608
$148.60 MSRP: $194.94
You Save: $46.34 (24%)
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S80 | 2007-2010 | V8 | 8 Cyl 4.4 L GAS
- XC90 | 2005-2011 | V8, V8 Ocean Race, V8 Sport | 8 Cyl 4.4 L GAS
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Volvo Injector Part Number: 9186340
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- C70 | 1999-2003 | Base | 5 Cyl 2.4 L GAS
- S60 | 2005-2009, 2001-2003 | 2.4T, AWD, T5 | 5 Cyl 2.4 L GAS
- S70 | 1999-2000 | AWD, GLT, GLT SE | 5 Cyl 2.4 L GAS
- S80 | 1999-2005 | T6, T6 Premier | 6 Cyl 2.8 L GAS, 6 Cyl 2.9 L GAS
- V70 | 2006-2007, 1999-2003 | 2.4T, 2.5T, AWD, GLT, GLT SE, X/C, X/C AWD, X/C AWD SE | 5 Cyl 2.4 L GAS, 5 Cyl 2.5 L GAS
- XC90 | 2003-2006 | 2.5T, Base, T6 | 5 Cyl 2.5 L GAS, 6 Cyl 2.9 L GAS
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Volvo Injector Part Number: 31465786
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
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Product Specifications
- Other Name: Fuel Injector
- Replaces: 31478608, 31303495
Fits the following Volvo Models:
- S60 | 2015-2018 | Polestar, T5, T5 Dynamic, T5 Inscription, T5 Inscription Platinum, T5 Inscription Premier, T5 Platinum, T5 Premier, T5 Premier Plus, T5 R-Design Special Edition, T6, T6 Platinum, T6 Premier Plus, T6 R-Design Platinum | 4 Cyl 2.0 L GAS
- S60 Cross Country | 2017-2018 | T5 | 4 Cyl 2.0 L GAS
- S80 | 2015-2016 | T5, T5 Platinum | 4 Cyl 2.0 L GAS
- V60 | 2015-2018 | T5, T5 Dynamic, T5 Platinum, T5 Premier, T5 Premier Plus | 4 Cyl 2.0 L GAS
- XC60 | 2015-2016 | T5, T5 Platinum, T5 Premier, T6, T6 Ocean Race, T6 Platinum, T6 Premier | 4 Cyl 2.0 L GAS
- XC70 | 2015-2016 | T5, T5 Platinum, T5 Premier | 4 Cyl 2.0 L GAS
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Volvo Injector Part Number: 31465787
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
- Replaces: 31336653, 31478609
Fits the following Volvo Models:
- S60 | 2019-2021 | Recharge R-Design, T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Polestar, T8 R-Design, T8 Recharge Inscription, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge R-Design Expression | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- S90 | 2017-2021 | T5 Inscription, T5 Momentum, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Momentum, T8 R-Design, T8 Recharge Inscription, T8 Recharge R-Design | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 | 2017-2021 | Polestar, T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T6 R-Design Platinum, T8 Polestar, T8 Recharge Polestar | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 Cross Country | 2020-2021 | T5 | 4 Cyl 2.0 L GAS
- V90 | 2018-2021 | T5 Inscription, T5 R-Design, T6 Inscription, T6 R-Design | 4 Cyl 2.0 L GAS
- V90 Cross Country | 2017-2021 | T5, T6, T6 Ocean Race | 4 Cyl 2.0 L GAS
- XC60 | 2017 | T5 Dynamic, T5 Inscription, T6 Dynamic, T6 Inscription, T6 R-Design | 4 Cyl 2.0 L GAS
- XC90 | 2016-2023 | T5 Inscription, T5 Momentum, T5 R-Design, T6 First Edition, T6 Inscription, T6 Momentum, T6 R-Design, T8 Excellence, T8 Inscription, T8 Momentum, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Inscription Expression, T8 Recharge Plus, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Injector Part Number: 32140007
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector 2510; Fuel Injector; Injector
- Replaced by: 32140134
Fits the following Volvo Models:
- XC90 | 2018-2020 | T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Excellence, T8 Inscription, T8 Momentum, T8 R-Design | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Injector Part Number: 32140073
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S60 | 2022-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge R-Design Expression, T8 Recharge Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- S90 | 2022 | B6 Inscription, B6 Momentum, B6 R-Design | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- V90 Cross Country | 2022 | B6 | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC40 | 2023 | B4 Plus, B4 Ultimate, B5 Core, B5 Plus, B5 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC60 | 2022-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, B6 Inscription, B6 Momentum, B6 R-Design, B6 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC90 | 2023 | B5 Core, B5 Plus | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
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Volvo Injector Part Number: 32140075
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S60 | 2022-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge R-Design Expression, T8 Recharge Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- S90 | 2022 | B6 Inscription, B6 Momentum, B6 R-Design | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- V90 Cross Country | 2022 | B6 | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC60 | 2022-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, B6 Inscription, B6 Momentum, B6 R-Design, B6 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
- XC90 | 2023 | B6 Core, B6 Plus, B6 Ultimate | 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV)
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Volvo Injector Part Number: 32140134
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Fuel Injector
- Replaces: 31432778, 32140007
Fits the following Volvo Models:
- S60 | 2019-2021 | Recharge R-Design, T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Polestar, T8 R-Design, T8 Recharge Inscription, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge R-Design Expression | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 | 2019-2021 | T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Polestar, T8 Recharge Polestar | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- V60 Cross Country | 2020-2021 | T5 | 4 Cyl 2.0 L GAS
- V90 | 2018-2021 | T5 Inscription, T5 R-Design, T6 Inscription, T6 R-Design | 4 Cyl 2.0 L GAS
- V90 Cross Country | 2017-2021 | T5, T6, T6 Ocean Race | 4 Cyl 2.0 L GAS
- XC40 | 2019-2022 | T4 Inscription, T4 Momentum, T4 R-Design, T5 Inscription, T5 Momentum, T5 R-Design | 4 Cyl 2.0 L GAS
- XC60 | 2018-2023 | B5 Core, B5 Inscription, B5 Momentum, B5 Plus, B5 R-Design, B5 Ultimate, B6 Inscription, B6 Momentum, B6 R-Design, B6 Ultimate, T5 Inscription, T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Inscription, T8 Momentum, T8 Polestar, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Inscription Expression, T8 Recharge Plus, T8 Recharge Polestar, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L MILD HYBRID EV-GAS (MHEV), 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- XC90 | 2018-2023 | T5 Momentum, T5 R-Design, T6 Inscription, T6 Momentum, T6 R-Design, T8 Excellence, T8 Inscription, T8 Momentum, T8 R-Design, T8 Recharge Core, T8 Recharge Inscription, T8 Recharge Inscription Expression, T8 Recharge Plus, T8 Recharge R-Design, T8 Recharge Ultimate | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Volvo Injector Part Number: 8627835
$208.78 MSRP: $276.16
You Save: $67.38 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injection Valve; Fuel Injector; Injector
Fits the following Volvo Models:
- S40 | 2000 | Base | 4 Cyl 1.9 L GAS
- V40 | 2000 | Base | 4 Cyl 1.9 L GAS
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Volvo Injector Part Number: 6900366
$233.84 MSRP: $347.99
You Save: $114.15 (33%)
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Product Specifications
- Other Name: Multiple Pn Change; Fuel Injector; Injector
Fits the following Volvo Models:
- S60 | 2001-2005 | 2.4, Base | 5 Cyl 2.4 L GAS
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Volvo Injector Part Number: 9470229
$264.23 MSRP: $314.55
You Save: $50.32 (16%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- V70 | 2001-2007 | 2.4, Base | 5 Cyl 2.4 L GAS
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Volvo Injector Part Number: 9202100
$116.14 MSRP: $137.11
You Save: $20.97 (16%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S60 | 2004-2009 | 2.5T, 2.5T AWD | 5 Cyl 2.5 L GAS
- V70 | 2003-2007 | 2.5T, 2.5T AWD, AWD, R | 5 Cyl 2.5 L GAS
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Volvo Injector Part Number: 9445156
$134.35 MSRP: $158.62
You Save: $24.27 (16%)
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S70 | 1999 | Base | 5 Cyl 2.4 L GAS
- V70 | 1999 | Base | 5 Cyl 2.4 L GAS
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Volvo Injector Part Number: 9186060
$141.18 MSRP: $166.68
You Save: $25.50 (16%)
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- C70 | 1999-2004 | Base | 5 Cyl 2.3 L GAS
- S60 | 2001-2004 | T5 | 5 Cyl 2.3 L GAS
- S70 | 1999-2000 | T5 | 5 Cyl 2.3 L GAS
- S80 | 2004-2006 | 2.5T, 2.5T AWD | 5 Cyl 2.5 L GAS
- V70 | 1999-2004 | R AWD, T5 | 5 Cyl 2.3 L GAS
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Volvo Injector Part Number: 8627799
$142.31 MSRP: $168.02
You Save: $25.71 (16%)
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Product Specifications
- Other Name: Fuel Injector
Fits the following Volvo Models:
- S80 | 2002-2004 | 2.9 | 6 Cyl 2.9 L GAS
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Volvo Injector Part Number: 3507422
$153.71 MSRP: $181.47
You Save: $27.76 (16%)
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Product Specifications
- Other Name: Injection Valve; Fuel Injector; Injector
Fits the following Volvo Models:
- 850 | 1995-1997 | Base, GLT | 5 Cyl 2.4 L GAS
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Volvo Injector Part Number: 6900371
$184.12 MSRP: $236.05
You Save: $51.93 (22%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injection Valve 2601; Fuel Injector; Injector
Fits the following Volvo Models:
- S40 | 2001-2004 | Base, LSE | 4 Cyl 1.9 L GAS
- V40 | 2001-2004 | Base, LSE | 4 Cyl 1.9 L GAS

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Volvo Fuel Injector Parts and Q&A

Injector
1332337
Q: How to remove and install fuel injectors on Volvo 740?
A:
To remove & install fuel injectors for 2.3L 4-Cylinders & 2.8L 6-Cylinders, release fuel system pressure, disconnect the negative battery cable, and disconnect fuel lines, electrical connectors, and vacuum hoses from the injection manifold & pressure regulator. Unbolt the pressure regulator, remove the injector cover plate if present and remove the fuel injection manifold with the injectors as a single unit. Secure the manifold in a holding fixture to remove the fuel injectors. For the installation, check the fuel injector O-rings and replace them if necessary, coat them with petroleum jelly, and install the injectors in the manifold. Reconnect the manifold and injectors, tighten the retaining bolts and connect the pressure regulator, vacuum hose, fuel lines, and electrical connectors before connecting the negative battery cable and starting the vehicle to check for leaks. For 2.9L 6-Cylinder engine, refer to the same steps, be sure to release fuel pressure, disconnect battery, remove fuel rail protective cover and lines. Label and remove electrical connectors then remove the fuel rail assembly and injectors. Lubricate O-rings on the new injectors, install them into the fuel rail and reassemble the components ensuring the O-rings are properly seated and checking for leaks after starting the vehicle. For 2.3L and 2.4L 5-Cylinder engines, you will need to remove the throttle pulley cover; remove fuel pressure, disconnect battery; remove parts such as upper air charge pipe, fuel rail cover. Disconnect the vacuum hose, lift the fuel rail using injectors, and replace the injectors as needed and make sure to keep the rubber dampers in place. Lubricate new O-rings and install injectors, and reassemble fuel rail and other components, reconnect the battery and search for leaks. To check the operation of the injector, listen to the click on a mechanic's stethoscope or screwdriver, if all injectors click, but problems still exist, then check fuel pump pressure and carry out a drop test of cylinders. For non-clicking injectors, use a "noid" light to test the injector driver circuit, if the light flashes but the injector does not click, then replace the injector. If the light does not flash, test the circuit for faults, making sure the resistance is less than 5.0 ohms, and replace the ECM, if necessary.
Injector
9186060
Q: What precautions should be taken with Fuel Injectors when removing and refitting them on Volvo V70?
A:
Be careful to not get dirt in the injection pump or injector pipes during this procedure! The first step in this process is to remove the plastic cover from the top of the engine. For D5244 T to T3 engines, release the clamps and remove the charge air hose that is connected to the intake manifold, remove the crankcase breather hose from the cylinder head cover, pull the connectors from the glow plugs, and make sure the areas around the high-pressure fuel pipe unions are clean. Undo unions and take off high-pressure fuel lines, discard them and get ready for fuel spillage by plugging ports. Disconnect the fuel return hoses from the injectors, take note of their location and disconnect the injector wiring plugs. Unscrew the screws holding each injector clamp in place, remove the injectors, removing the sealing washers and other parts, marking injectors for identification if they are to be refitted. For D5244 T4 to T7 engines, remove the cross-stay between the suspension turrets, ensure the rubber shield over the fuel injectors is removed and ensure cleanliness around the high-pressure fuel pipe unions. Follow similar steps to remove the high pressure fuel pipes, disconnect the return hoses and wiring plugs, unscrew the injector clamps and recover the metal washers. Store injectors in an upright position if they are to be refitted. During refitting, make sure injectors and seats are clean and install new parts, tightening screws evenly. Install new high pressure pipes and tighten unions to specified torque, followed by the injector retaining screws. Check the condition of fuel return hoses including 'Class' identification number for D5244 T to T3 engines and software updates to be carried out for new injectors for D5244 T to T7 engines. Finally, step on the accelerator pedal and start the engine, checking for fuel leaks after running at fast idle to purge trapped air.