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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2013IMPALA V6-3.6LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSCATALYTIC CONVERTERSERVICE AND REPAIRCATALYTIC CONVERTER REPLACEMENT (SERVICE)
2013 Chevrolet Impala V6-3.6L
Catalytic Converter Replacement (Service)
2013 Chevrolet Impala V6-3.6LSECTION Catalytic Converter Replacement (Service)
Catalytic Converter Replacement (Service)
Removal Procedure
Warning:
Refer to Hot Exhaust System Warning Hot Exhaust System Warning.
Warning:
Refer to Safety Glasses Warning Safety Glasses Warning.
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.
2. Cut the exhaust pipe (2) 64mm (2.5 inches) from the front exhaust muffler front hanger rods (a).
3. Remove the exhaust front pipe fasteners (3) from the catalytic converter (1) and discard the exhaust gasket (2).
4. Remove the catalytic converter (1).
Installation Procedure
Caution:
Refer to Fastener Caution Fastener Caution.
1. Install the NEW catalytic converter (1) with a NEW gasket (2) and tighten the exhaust front pipe fasteners (3) to 43 Nm (32 lb ft).
2. Install the exhaust service clamp (2) onto the exhaust muffler and the NEW catalytic converter. Tighten the exhaust clamp fasteners (1) to 50 Nm (37 lb ft).
3. Inspect the exhaust system for leaks.
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.
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.