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. Install the exhaust intermediate pipe and muffler assembly from the vehicle.
  2. GM2678269Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install the 3-way catalytic converter (4) into the exhaust Isolators (3) with a NEW gasket (2) and tighten the fasteners (1) to 17 N.m (13 lb ft).

  3. GM2494571Courtesy of GENERAL MOTORS COMPANY

    Install the exhaust rear muffler (2) into the exhaust isolators (1).

  4. Install the rear axle. Refer to Rear Axle Replacement .
  5. Lower the vehicle.
  6. Start the engine and check for exhaust leaks.
RENDER: 1.0x

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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.