Engine and engine cooling: exhaust system
Chevrolet technical service bulletin PIP5110A for 2011-2013 Chevrolet Silverado, 2011-2013 GMC Sierra and 2011-2013 Chevrolet Express and others.
- Bulletin number
- PIP5110A
- Component
- Engine and engine cooling: exhaust system
- Summary
- This Preliminary Information communication provides information to the technician of additional information while diagnosing a diagnostic trouble code P0420. Check for a possible leak in the exhaust system behind the bank one number 2 oxygen sensor. If a leak is found or there is an aftermarket utility bed or trailer hitch installed. Check for a minimum clearance of 1.5 to 2 inches of the exhaust system.
Owners of these vehicles have filed 51 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 2011-2013 201120122013
- GMC Sierra 2011-2013 201120122013
- Chevrolet Express 2011-2013 201120122013
- GMC Savana 2011-2013 201120122013
- GMC Sierra Denali 2011-2013 201120122013
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