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Car was running rough

Tiny
STANLEYTHETROLL
  • MEMBER
  • 2000 HYUNDAI ELANTRA
  • 167,000 MILES
Car was running rough. Had miss in cyl#3. Changed coil pack and plugs. Same thing. Hooked up spark gap tester on 30. No spark on 3 and random spark on 1. 2 and 4 are strong. Changed 2 and 3 wires same thing. Antthing else to check besides the computer.
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Wednesday, October 31st, 2012 AT 3:29 PM

2 Replies

Tiny
BRIEN P
  • MEMBER
  • 19 POSTS
Try taking your ohm meter and test the plug in to your coil pack you should have a 5 volt reference and a ground
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Wednesday, October 31st, 2012 AT 3:46 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If you have sparks on 2, there shuld be sparks on # 3 as they use the same coil and fires simultaneously. Did you replace the plug wire?
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Wednesday, October 31st, 2012 AT 5:18 PM

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