Automotive Sites Directory- Consumer Information > Complaints > General Motorshttp://www.automotive-sites-directory.comConsumer_Information/Complaints/General_Motors/Automotive directory Dex-Cool Extended Life GM Engine Coolant Problems http://www.geocities.comInformation about Dex-Cool Extended Life Engine Coolant crystallization (sludge) problems.Mon, 31 Aug 2009 14:12:23 GMTGM Piston Slap -- Like a Knock http://www.pistonslap.comDetailed information about "piston slap" with GM engines and what one can do about it. Also has forum and links areas.Mon, 31 Aug 2009 14:12:23 GMTGM Truck Lemon Center http://agmlemon.freeservers.comInformation about manufacturing defects in the 1999 - 2001 GM trucks and how to resolve them. Includes a listing of manufacturers service bulletins and recalls, postings from other owners about their problems and resolutions, and information about GM buy-backs.Mon, 31 Aug 2009 14:12:23 GMTPontiac Problems.com http://www.pontiacproblems.comSite shows graphs of Pontiac models with the most car problems, recalls and investigations. Also has information on common Pontiac problems such as power windows breaking, leaking coolant/intake manifold gasket failure, and the anti-theft/Passlock system defect.Mon, 31 Aug 2009 14:12:23 GMT