SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 458 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSCATALYTIC CONVERTER REPLACEMENT (6.6L ENGINE)REMOVAL PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Removal Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Removal Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the transmission with a suitable transmission jack.
  3. Remove the transmission mount to transmission support nuts.
    Fig 1: Identifying Transmission Mount Nuts
    GM647997Courtesy of GENERAL MOTORS CORP.
  4. Raise the transmission off of the transmission support.
    5. Fig 2: Transmission Support Crossmember (6.0L, 6.6L, and 8.1L Engines)
    GM788013Courtesy of GENERAL MOTORS CORP.
  5. Remove the transmission support crossmember bolts.
  6. Remove the transmission support crossmember.
    7. Fig 3: Exhaust Muffler Nuts (6.0L, 6.6L, and 8.1L Engines)
    GM694338Courtesy of GENERAL MOTORS CORP.
  7. If equipped with the 6.6L engine, remove the exhaust muffler nuts.
    8. Fig 4: View Of Turbocharger Exhaust Pipe & Clamp
    GM668379Courtesy of GENERAL MOTORS CORP.
  8. If equipped with a 6.6L engine, loosen the exhaust pipe clamp.
  9. Slide the exhaust pipe clamp up onto the exhaust pipe adapter.
    10. Fig 5: Catalytic Converter (6.6L Engine)
    GM1284307Courtesy of GENERAL MOTORS CORP.
  10. If equipped with a 6.6L engine, remove the catalytic converter.
  11. Slide the catalytic converter hanger out of the exhaust pipe hanger bracket.
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.