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April 1, 2015 Service bulletin

Buick/saab/chevrolet/hummer/gmc: some vehicles are experiencing, at a cold start for engines, reduction in...

Chevrolet technical service bulletin PIP-4573-B for 2002-2009 Chevrolet Trailblazer, 2004-2012 Chevrolet Colorado and 2002-2009 GMC Envoy and others.

Bulletin number
PIP-4573-B
Component
Equipment
Summary
Buick/saab/chevrolet/hummer/gmc: some vehicles are experiencing, at a cold start for engines, reduction in engine power and ses light, when temperatures are -10f (-23c) and also rear/front crank seal, cam cover gasket and dipstick tube will be leaking oil. Model 2004-07 rainier, 2002-09 trail blazer, envoy, 2004-12 colorado, canyon, 2006-12 h3, 2005-09 97x.

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