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Old 11-17-2014, 12:03 PM   #7
arturob
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Join Date: Aug 2014
Location: calgary
Posts: 49
Possible blown fuse

I had a similar problem and it turned out to be a blown fuse. On my 2007 Sierra 3500 the fuse block is on the drivers side under the hood. Laarge rectangular black cover behind the battery. The fuse is a pink 30 amp on the LHS of the box.
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