1999 CHEVROLET EXPRESS
118,000 MILES
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GSTEELE55
  • MEMBER
  • 1 POST
At night after driving the highway about 10minutes the voltage gauge drops from 14 to about 10 or 11 and the lights start to dim. When driving at slower speeds around 40 mph this does not happen. Any reason why?
Jan 26, 2013 at 3:46 PM
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HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
clean battery cables and have blet checked, it may be to old and slipping. reccomended belt replacement is 60,000 mi alon g with tensioner
Jan 26, 2013 at 4:36 PM