Installation Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

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Fuel Injector Seal Spacer (2) - Install NEW [4x]
Fuel Injection Fuel Rail Seal (1) - Install NEW [4x]
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Install the fuel injector (3) to the fuel rail.
Using the EN-51097 Injector Retaining Clip Installer (1), install NEW direct fuel injector hold down clamps (2) to the fuel injector (3).
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Fuel Injector Seal (1) - Install NEW [4x]
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NOTE:
Do NOT use any type of lubricant when installing NEW seals (2) on the injector.

Install EN-51105-1 Seal Installer Long Guide (3) onto the fuel injector tip. Place a NEW seal (2) on EN-51105-1 Seal Installer Long Guide.
1. Using EN-49245-3 Seal Installer Pusher (1), install the seal onto the first recessed area (4) of the fuel injector.
2. Compress the seal with your fingers, then resize the seal using the EN-49245-4 Seal Sizer (5).
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NOTE:
Do NOT use any type of lubricant when installing NEW seals (2) on the injector.

Install EN-51105-2 Seal Installer Short Guide (3) onto the fuel injector tip. Place a NEW seal (2) on EN-51105-2 Seal Installer Short Guide.
1. Using EN-49245-3 Seal Installer Pusher (1), install the seal onto the second recessed area (4) of the fuel injector.
2. Compress the seal with your fingers, then resize the seal using the EN-49245-4 Seal Sizer (5).
3. Inspect the NEW fuel injector nozzle housing seals on ALL injectors, ensuring the seals are seated correctly. All seals must be fixed tight, and accurately to the fuel injector nozzle, with no overlap, buckling, or corrugation present. Replace any seal that is incorrectly seated on the fuel injector nozzle with a NEW seal.
Install the fuel injection fuel rail fuel pressure sensor. Fuel Rail Pressure Sensor Replacement
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NOTE:
The fuel injection fuel rail bolts are retained into the rails using keepers. Care should be taken to ensure that the threadlock is installed after the fasteners are installed in their bore.

If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:
1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
3. Remove loose debris from internal and external threads using compressed air.
4. Apply liquid thread locking adhesive in a strip along half of the length of the external threads, starting at the tip, just prior to installation. Adhesives, Fluids, Lubricants, and Sealers

CAUTION:

Refer to Fastener Caution .

NOTE:

Start the fuel injection fuel rail bolts by hand then draw the injector rail down evenly prior to tightening.

Fuel Injection Fuel Rail Bolt (1) @ Fuel Injection Fuel Rail (2) - Install [4x] 25 N.m (18 lb ft)
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Install the fuel injection fuel rail assembly (1) to the cylinder head.
Install the fuel injector wiring harness. Fuel Injector Wiring Harness Replacement - Bank 2
Install NEW fuel feed intermediate pipe. Fuel Feed Intermediate Pipe Replacement - Position 1
Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
Pressurize the fuel system and inspect for leaks.