OEM Buick Enclave Fuel Injector

Buick Enclave Fuel Injector Parts and Q&A

• Injector
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  Q: How to replace the fuel injectors in the LLT (3.6L) engine on Buick Enclave?

  A:

  The first step to replace llt (3.6L) fuel injectors requires the use of ch-48027 or does not need ch-48027 to relieve high side fuel system pressure. Record down the alignment spots of each injector before removing them for future installation. The Fuel Rail assembly for bank 1 or bank 2 needs removal from the system. The three Fuel Injector retaining rings must be discarded before disconnecting the electrical connector and extracting the direct fuel injectors together with their harness as an assembly. A j 2619-01 slide hammer with j-37281-a injector remover should be used for even injector extraction when required. The upper o-ring seal and plastic spacer and retaining ring and isolator cup along with teflon seal must be discarded from each Fuel Injector. When bores show signs of contamination you should clean them using the j-39313 adapter together with en-47909 cleaning kit. Place a new o-ring seal in gm p/n 12345610 silicon-free engine oil equivalent before installing the new upper o-ring seal combined with plastic spacer followed by retaining ring then isolator cup and teflon seal onto the fuel injectors. Magnet the en-48266-1 part from the en-48266 installer toward the injector tip without teflon seal lubrication followed by seal installation onto the en-48266-1 which should be drawn into the injector groove. The en-48266-2 deviates from the en-48266-1 so workers must mount it on the injector tip while using moderate hand pressure to stretch the teflon seal. Lay the direct fuel injectors and their harnesses as one unit after taking away the en-48266-2 while reattaching the electrical connector with injector positioning similar to removal procedures. Reinstall the fuel injection Fuel Rail assembly which belongs to bank 1 or bank 2.