Been going on for awhile,2010 malibu LTZ 3.6 wont start at time just turn over,but if i tap on fuse box in trunk it wil start.Have changed Relay .Any Idea?
Look for rust or corrosion on the back of the fuse box in trunk.
Lose wire or not properly set fuse? If you tap the fuse box and then it works, look no further that there. In the very old days, we'd just use a larger hammer, but it doesn't work on the dainty cars of today.
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