OEM Buick Enclave Fuel Injector

Buick Enclave Fuel Injector Parts Questions & Experts Answers

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

  A:

  The replacement of fuel injectors in the llt (3.6L) engine requires the first step to be the relief of high side fuel system pressure. Normal operating position of injectors needs to be recorded before installing the unit. The technician needs to detach the fuel injection Fuel Rail assembly for both bank 1 and bank 2. The replacement process starts by discarding the three Fuel Injector retaining rings before removing the direct fuel injectors together with their harness components and unfastening the electrical connector. Extraction can be achieved with the j 2619-01 slide hammer featuring j-37281-a injector remover when applied to achieve equal injector removal. The upper o-ring seal and plastic spacer and retaining ring and isolator cup and teflon seal need to be discarded from the fuel injectors. Check the Fuel Rail injector bores through use of j-39313 adapter and en-47909 cleaning kit and clean them when in need. Place new o-ring seal from gm p/n 12345610 or equivalent oil on the fuel injectors before installing the upper o-ring seal together with plastic spacer, retaining ring, isolator cup and teflon seal. Place the en 48266-1 from the en-48266 installer to the injector tip without applying new teflon seal lubrication before pulling the new teflon seal down into the injector groove. Place the en 48266-2 onto the end of the injector tip before you use medium pressure to turn the tool to resize the teflon seal. Reattach the direct fuel injectors and their harness as an assembled component by connecting the electrical connector with precise alignment similar to the measurement taken when removing them. Install the fuel injection Fuel Rail assembly for bank 1 or bank 2 after the completion of the procedure.