Resonator Replacement (LFA)

2009 Chevrolet Tahoe Base, 4.8 CSECTION Resonator Replacement (LFA)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Resonator (LFA)
GM2021308Courtesy of GENERAL MOTORS CORP.
Callout Component Name
Preliminary Procedure:Β 
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
1 Clamp
NOTE: Refer to Fastener Notice .

Tighten:Β  55 N.m (40 lb ft)

2 Nut

Tighten:Β  5 N.m (44 lb in)

3 Exhaust Resonator
Procedure:Β 
Disengage the resonator from the insulators.
RENDER: 1.0x

NO RELATED

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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.