Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 660 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSEXHAUST PIPE REPLACEMENTREMOVAL PROCEDURE

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Removal Procedure

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle. Refer to JACKING AND LIFTING in General Information.
NOTE: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.
Support the exhaust system.
Remove the catalytic converter nuts.
Remove the catalytic converter gasket.

Fig 1: Removing Catalytic Converter Nuts
Courtesy of GENERAL MOTORS CORP.
Remove the exhaust insulator hangers from the exhaust pipe.

Fig 2: Removing Exhaust Insulator Hangers From Exhaust Pipe
Courtesy of GENERAL MOTORS CORP.

Important: The cut must be made approximately 38 mm (1.5 in) from the mufflers to ensure adequate overlap for clamping.
Cut the exhaust pipe from the exhaust mufflers.
Remove the exhaust pipe from the vehicle.

Fig 3: Cutting Exhaust Pipe From Exhaust Mufflers
Courtesy of GENERAL MOTORS CORP.

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:

• 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.