October 18, 2022 Service bulletin

Engine and engine cooling: engine: crank/camshaft position sensor

Chevrolet technical service bulletin PIT3033B for 2003-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy and 2003-2004, 2006 Chevrolet Trailblazer EXT and others.

Bulletin number: PIT3033B
Component: Engine and engine cooling: engine: crank/camshaft position sensor
Summary: This Preliminary Information communication provides information to the technician that the Cam gear alignment can be incorrect after replacing the HVAC mode actuator.

Owners of these vehicles have filed 763 complaints in the engine category.

Vehicles covered

Chevrolet Trailblazer 2003-2009 2003 2004 2005 2006 2007 2008 2009
GMC Envoy 2002-2009 2002 2003 2004 2005 2006 2007 2008 2009
Chevrolet Trailblazer EXT 2003-2004, 2006 2003 2004 2006
GMC Envoy XL 2002-2004, 2006 2002 2003 2004 2006
Buick Rainier 2004-2007 2004 2005 2006 2007
Chevrolet Trailblazer EXT 370 2005 2005
GMC Envoy Xuv 2003-2005 2003 2004 2005
GMC Envoy XL 370 2005 2005

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