Installation Procedure

2016 GMC Acadia SLE, FWDSECTION Installation Procedure
    Fig 1: Identifying Rebuilt Direct Fuel Injectors
    GM1977754Courtesy of GENERAL MOTORS COMPANY
  1. Install the rebuilt direct fuel injectors (1) to the cylinder heads. Refer to Fuel Injector Replacement (LLT) .
  2. Install NEW direct injector hold down clamps to the injector.
  3. Fig 2: Removing/Installing Fuel Rail Bolts
    GM1977746Courtesy of GENERAL MOTORS COMPANY
  4. On a new fuel rail, lubricate the fuel injector cups with silicon free engine oil GM P/N 12345610 (Canadian P/N 9931930) or equivalent.
  5. Carefully place the fuel rail (1) into position, placing the front into the fuel rail over the front injector and rotating the rear downward.
  6. Install the 2 outer fuel rail bolts first, then the 2 inner bolts, and hand tighten.
  7. Install the bank 2 fuel injection rail. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 (LLT) .
  8. Fig 3: Identifying Fuel Rail Bolt Tightening Sequence
    GM1977774Courtesy of GENERAL MOTORS COMPANY
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.