Removal Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Refer to Diesel/Gasoline Vapors Warning .

WARNING:

Refer to Safety Goggles and Fuel Warning .

CAUTION:

When working on the fuel rail and fuel injectors, always maintain a clean work surface. Failure to maintain a clean work surface can result in contaminant on the injector seals and cause leaks.

Remove the fuel injector rail assembly. Refer to Fuel Injection Fuel Rail Assembly Removal and Installation .
NOTE:
The EN-51146 - 2 - 5 calibrations tools must be installed.

Remove the 8 plate bolts (1) and remove EN-51146-1-2 plate (2), counterhold with a wrench (4) at the EN-51146-1-1 supports (3).

NOTE:

Remove only the EN-51146-1-1 supports (3) of the fuel injector or fuel injectors, which will be replaced. The EN-51146-1-1 supports must be installed at the injectors, which will be re-used. Failure to follow this caution could cause leaks or malfunction after installation.

Remove the regarding EN-51146-1-1 supports (3).
Disconnect the regarding fuel injector wiring harness plugs (2).
Remove the regarding fuel injectors (3) from fuel injection fuel rail (1).