2003 Cadillac STS Car stops running at any speed

2003 CADILLAC STS
90,100 MILES • V8 • 2WD • AUTOMATIC
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REDLEG1SG
  • MEMBER
  • 1 POST
Car battery has been checked at Sears and is okay. Can be traveling anywhere from 10 mph to 77 mph and the engine will stop running. Turn signals do not work, but windows will come down. The car has not been starting regularly for the past 2 weeks. Sometimes it starts right up, other times it doesn't. This morning the car would not start and was jumped and started right up. Battery volts are running at 14.8V avg. The car started fine this afternoon, and cut off on me while traveling down the highway at 55 miles per hour. Lost power steering and signals would not work. Stopped in median and put the car in park, and it started right back. My husband rebooted the BCM last week and I had no problems, at all, for about 5 days. Then it started all at once again.
Mar 28, 2010 at 5:34 PM
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FACTORYJACK
  • ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
Check the ground cable between the front body rail, and the alternator case, it is a big cable. Sometimes it can break, influenced by a worn front engine mount.
Mar 28, 2010 at 10:39 PM
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