Installation Procedure

2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Installation Procedure
WARNING: This page is about a different car, the 2018 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM2191817Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Lubricate the 4 fuel injector seal rings (2) with clean engine oil.

    Install the fuel injection fuel rail assembly (1) to the intake manifold. Use NEW fuel injector seal rings (2).

  2. GM2373065Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install the 2 fuel injection fuel rail bolts (1) and tighten to 7 N.m (62 lb in).

  3. Install the ground cable and the ground cable nut (2) and tighten.
  4. GM2373064Courtesy of GENERAL MOTORS COMPANY

    Connect the 4 fuel injector wiring harness plugs (2).

  5. Clip the ECM wiring harness to the retainer clip (1) and the camshaft cover.
  6. Remove the positive crankcase ventilation pipe from the intake manifold. Refer to Positive Crankcase Ventilation Pipe Removal .
  7. Install the fuel feed pipe to the fuel injection fuel rail. Refer to Fuel Feed Pipe ReplacementΒ .
  8. Install the engine sight shield. Refer to Engine Cover Replacement .
  9. Connect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
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When to See a Mechanic

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

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