Hyundai Dies While Driving After Jump

HYUNDAI
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REGALL
  • MEMBER
  • 1 POST
I reversed the jumer cables and it now we've replaced the alternator and battery which worked for about 1 1/2 days and it died while driving it.

It starts so it's not the starter, it ran so it's not the battery or alternator, so what other insanely expensive item could need to be replaced??
Aug 9, 2006 at 9:32 AM
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SYNCRAIT
  • ✓Experienced Mechanic
  • 235 POSTS
when you say it died while driving it does that mean sputtering dead or just shuts off like a light....good luck :)
Aug 9, 2006 at 11:26 AM
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SERVICE WRITER
  • ✓Experienced Mechanic
  • 9,123 POSTS
Re-check the alternator. It is not uncommon to get a bad one or two. Autozone alternaters are questionable.

Becareful about crossing cables, it can blow the computer. It wouldn't have started from the getgo if it had.
Aug 9, 2006 at 1:03 PM
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Suggested Repair

Recheck the replacement alternator, since new units can be defective. Reversed jumper cables can damage the computer, but the fact that it still starts makes that less likely. Note whether it sputters or shuts off instantly.

Conversation Summary

The owner reversed jumper cables on a Hyundai. After the battery and alternator were replaced, it ran about a day and a half, then died while driving, though it still starts. Experts asked how it shut off and advised rechecking the alternator, noting that reversed cables can damage the computer but starting makes that less likely.

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