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What are the most likely cause's of the number 4 cylinder not getting any spark?

Tiny
SILVERLOAD
  • MEMBER
  • 1992 SATURN SL1
  • 268,000 MILES
It started out as an intermitting issue but now runs on 3 cylinders all the time and runs super rich. I have replaced spark plugs, spark plug wires, and a new ignition coil that powers that cylinder but still no spark on number 4 cylinder. Just looking for a list of things other than what I have changed out of what it could be. Thank you for your help.
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Sunday, March 11th, 2012 AT 5:13 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
If its not the coil only thing left is th ignition moudle.
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Sunday, March 11th, 2012 AT 6:26 PM
Tiny
SILVERLOAD
  • MEMBER
  • 2 POSTS
Thank you for your reply.
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Sunday, March 11th, 2012 AT 6:47 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Your welcome the only thing left is the coil control since the other ones spark and you tried a new coil.I would have swaped the coils from left to right rather then replace the coil to find the bad ignition module. Those modules arent cheap for those. Make sure you get the module with two plugs going to it.
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Sunday, March 11th, 2012 AT 8:08 PM

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