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Chevrolet Express 3500 Problems

Contamination of extended life coolant on Chevrolet Express 3500

Problem Description and Possible Solution

Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
(15 people reported this problem)

Chevrolet Express 3500 Vehicles With This Problem

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Average mileage: (–)
15 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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Brake problem? Or maybe a faulty head gasket cylinder?
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