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alternator not charging

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by js1265, Jan 26, 2010.

  1. js1265

    js1265 New Member

    my battery has had a problem mantaining charge dash guage is lit displaying battery warning but sometimes it goes off and battery charges normally . now it will not charge at all do ineed to replace alternator. have replace3d serpentine belt , tensioner and battery is fai. what size alternator doe it requirerly new this on 2000 gmc sierra 5.3
  2. Big75

    Big75 Rockstar 4 Years 500 Posts

    bring it in to O'reilleys and have it tested.
  3. vncj96

    vncj96 Epic Member 5+ Years 1000 Posts

    Any parts store should be able to check the alternator and the battery. Sears will check the whole system for 12 bucks without even taking anything out of the vehicle

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