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.
Installation Procedure
2011 GMC Savana Special 4.8 ASECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 GMC Savana Special, 2010 GMC Savana Camper Special, 2010 GMC Savana, 2010 Chevrolet RV Cutaway, and 2010 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- If replacing the catalytic converter, apply water based lubricant to the catalytic converter hanger bracket and slide the exhaust pipe hanger bracket into the catalytic converter hanger.
- Install a NEW catalytic converter to diesel particulate filter gasket.
- Position the catalytic converter to the diesel particulate filter, turbocharger exhaust pipe and the hanger bracket to transmission.
- Install the catalytic converter hanger to transmission bolts (1) and tighten to 58 N.m (43 lb ft).
- Install the catalytic converter to particulate filter nuts (3) until snug.
CAUTION:
Refer to Fastener Caution
.
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.