Starter or Alternator out?

2002 CHEVROLET AVALANCHE
140,000 MILES • 6 CYL • 4WD • AUTOMATIC
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LORRIY
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2002 Chevy Avalanche - yesterday while driving the red battery indicator started flashing; today while driving ALL gauges dropped to zero, 5 minutes prior - the truck started just fine. Now when I try to start it - it ticks with no drained battery sound. The battery and cables have been replaced within the year. Is it maybe my starter or alternator? And if so, how do I know which one?
Mar 1, 2011 at 9:09 PM
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SATURNTECH9
  • ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
You will have to your battery charged and tested then start the engine up let it idle and take a multimeter and see what the voltage reading at the battery is at idle.That is your starting point also make sure the battery cable's are clean and tight.
Mar 1, 2011 at 9:30 PM
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