Question about 2006 Chevrolet Equinox

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2006 Equinox codes kicking out when heater is plugged in in winter

Block heater in operations seems to kick out codes engine becomes hard to start burns more gas and the temp gauge won't work ,cleare out the code everything fine till you plug in heater again >my dealer says no cure and that the 2007 model had the same problem.GM is not helping either they seem to have no answere other than to put in some sort of block heater which was installed in factory in the 2007 which my dealer said did nothing and that the same codes were being sen by 2007 owners

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My 05 Malibu has same issue. There is a temp switch in the plug on the block heater cord (raised round plastic protrusion) to prevent the heater working until -18c. I had inadvertently disabled this by replacing the plug on the block heater cord due to no continuity when I tested it (tested it on a warm day before I knew about the switch). However was advised that if I plug in the vehicle on a cold day when the vehicle is hot (example; just arrived at work and it's -20c and want to plug it in for the day) the same fault will occur. Solution. Only plug in after the vehicle has cooled and only when the OAT is below -20c. Not much of a solution, more a of a work around but there it is.

Posted on Dec 03, 2008

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