Engine and engine cooling
Chevrolet technical service bulletin PI1257 for 2007-2009 Chevrolet Silverado 1500, 2007-2009 GMC Sierra 1500 and 2007-2009 Chevrolet Silverado 2500 and others.
- Bulletin number
- PI1257
- Component
- Engine and engine cooling
- Summary
- This preliminary bulletin provides a procedure to install a new design upper intake manifold with a new MAP sensor relocated to prevent ice build up and setting code P0106.
Owners of these vehicles have filed 289 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 1500 2007-2009 200720082009
- GMC Sierra 1500 2007-2009 200720082009
- Chevrolet Silverado 2500 2007-2009 200720082009
- GMC Sierra 2500 2007-2009 200720082009
- Chevrolet Silverado 3500 2007-2009 200720082009
- GMC Sierra 3500 2007-2009 200720082009
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