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April 1, 2011 Service bulletin

Gm: there is an engine coolant leak or engine knock noise

Chevrolet technical service bulletin PIE-0169 for 2005-2007 Chevrolet Kodiak, 2005-2007 Chevrolet C5500 and 2005-2007 Chevrolet C4500 and others.

Bulletin number
PIE-0169
Component
Engine and engine cooling: cooling system
Summary
Gm: there is an engine coolant leak or engine knock noise. The engine coolant fan may have broken. 2005-2007 kodiak/top kick. Rm

Owners of these vehicles have filed 17 complaints in the engine category.

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