Question about 2003 GMC Sierra 1500

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My 2003 sierra will not start somtimes I have power but it jst wont turn

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Could be a # of things. First is the battery up to doing the job? If you have a voltage meter test to make sure you have close to 12V across the battery then turn on headlights voltage should not drop more than about 1 volt. If so battery most likely is OK. Dirty battery cables will be the next thing to look for. Are the terminals clean & corrosion free at the battery? If you have found know problem so far your starter may need to be replaced. Do you have the ability to use jumper cables & jumper it from another battery?

Posted on Jul 12, 2013


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