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2002 Hyundai Accent arcing from harmonic balancer

Tiny
JOSEPH1127
  • MEMBER
  • 2002 HYUNDAI ACCENT
  • 4 CYL
  • FWD
  • MANUAL
  • 130,000 MILES
Problem started as a hesitation when going up hill or when putting stress on the engine. I ran a code scan and got # 4 missfire. I changed the plugs, wires and coils then I cleared all codes. After all of that I noticed a bright blue spark and popping noise coming from the harmonic balancer. Its been about a month since I replaced the ignition parts and cleared the codes. It seems to run ok and there are no codes. But the spark is still there.
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Sunday, April 11th, 2010 AT 10:18 AM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
Have you checked the condition of the crank sensor?
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Thursday, May 20th, 2010 AT 11:16 PM
Tiny
JOSEPH1127
  • MEMBER
  • 4 POSTS
Yes. I ruled that out since it is located neer the fly wheel and not the balancer.
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Friday, May 21st, 2010 AT 6:13 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
Just for the heck of it, check the ground on the engine block. Make sure it is tight, clean, and not damaged.
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Friday, May 21st, 2010 AT 10:24 PM
Tiny
JOSEPH1127
  • MEMBER
  • 4 POSTS
I will double check the ground. I did take some jumper cables and connected the engine block to the body and I still got the same result. Would jumper cables make a good enough ground to rule that out too?
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Friday, May 21st, 2010 AT 10:41 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
I would have gone straight to the battery. This one has me confused. After your last post, I thought about it and the only thing that came to mind was a weak ground and the power trying to find a good one. That is why I suggested the ground issue. Try it again, but go straight to the battery. Make sure the jumper is on a clean spot of the engine so it grounds properly.

Let me know what you find.
Joe
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Friday, May 21st, 2010 AT 11:12 PM
Tiny
JOSEPH1127
  • MEMBER
  • 4 POSTS
I tred running a jumper cable from the negative post on the battery to a clean spot on the engine. It didn't change anything. I did put some belt dressing on the belt. That stoped the arcing at idle speed but once you give it gas it just starts all over again. I have conciderd static electricity coming from friction on the belt. But the arc that it is producing is very large and bright blue. It Almost looks like a spark from a plug. Any more ideas would be apretiated. Thanks alot.
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Friday, July 16th, 2010 AT 4:48 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,740 POSTS
Hi:
Good to hear from you, but sorry you're still dealing with the same problem. Without being there, the only thing I can think is the crank sensor. I know you said no to that, but there has to be a break down from that.
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Saturday, July 17th, 2010 AT 12:54 AM

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