Car Problem Reports

Dodge Ram 3500 Check Engine Light Due to Failed Thermostat

Dodge Ram 3500 Problem
10 Reports
Me Too

Model Years Affected: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Engine Affected: 6.7L 6 Cylinder Diesel Turbo


The thermostat may fail to close completely, causing the Check Engine Light to illuminate. This problem will prevent the engine from reaching normal operating temperature; a new thermostat should be installed.

Ask a Question