2002 Chevy Tahoe making a clicking sound

2002 CHEVROLET TAHOE
180,000 MILES • V8 • 2WD • AUTOMATIC
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TDYKWELL
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  • 1 POST
i have full power, battery etc but when i turn the key all i get is a clicking sound. is that my alternator?
Oct 3, 2009 at 9:12 AM
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MERLIN2021
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Clicking? or nothing at all? If you hear a click, then either the battery is weak, or the starter, possibly bad battery cable connections, check and clean both ends of BOTH cables! Dissconnect negative(-) first, and put it on last! If no click the starter relay is no good! Try a jump start. Attach a voltmeter to the battery while cranking, if volts drop below 10, battery is no good.
Oct 3, 2009 at 9:45 AM