no spark on number 3 plug - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-09-2006, 02:02 PM   #1
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Default no spark on number 3 plug

hi guys i had my 97 bonny ssei */c 93.200 miles. i had a scan done and it says my number 3 is a miss fire i did my plugs and wires .its still the same . i wanna know what i should do about this . missfire on 3 .there is no spark i took the wire off all the of the others has great spark. thanks again. chuck
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Old 10-09-2006, 02:08 PM   #2
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bad coil pack. would be my first suspicion. go to JY, replace all three packs with ignition plate, test, problem fixed.
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Old 10-09-2006, 02:15 PM   #3
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While the typical problem would be looked at as a possible bad coil pack, check the #6 plug. We only have 3 coils and therefore (I forget what Don said it was called) both plugs fire at the same time. One spark is wasted, one is used.

Therefore check #6 and the coil tower on #3, it'* also possible the tower is broken or cracked. It may also be your ignition control module.
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Old 10-09-2006, 02:17 PM   #4
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Quote:
Originally Posted by wjcollier07
bad coil pack. would be my first suspicion. go to JY, replace all three packs with ignition plate, test, problem fixed.

For those of us who aren't so savvy.. what is JY ?

Thanks.
Sam B.
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Old 10-09-2006, 02:20 PM   #5
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JY= junkyard or auto wrecker, aka cheap parts.
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Old 10-09-2006, 03:09 PM   #6
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Default no spark on number 3 plug

thanks for the info. i have a 96 bonny se can i take the parts off the 96 se for my97 ssei will it work.
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Old 10-09-2006, 03:27 PM   #7
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Chuckiec4 has a 96 bonne SE at home also. I looked up the part numbers and the coil packs are a different number between the 97SSEi and the 96SE ignition coil packs, but, would he be able to use a pack from the 96 to see if the pack on the 97 is bad? I know it'* a different part number, but if it fits, would it work?

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Old 10-09-2006, 03:44 PM   #8
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The SSEi packs throw a hotter spark. For testing, it will be fine. If that doesn't work out, pull all three coil packs and swap the ICM located underneath them.
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Old 10-09-2006, 07:49 PM   #9
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Both the ICM & coils would have to be good if #6 is firing. You might want to double check #3 & #6. How are you checking for spark?
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Old 10-09-2006, 08:53 PM   #10
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Quote:
Originally Posted by Technical Ted
Both the ICM & coils would have to be good if #6 is firing. You might want to double check #3 & #6. How are you checking for spark?
The guy who checked for spark, took the wires off, and got zapped hard on every one, except the #3. Also, upon doing the diagnostic, the #3 was misfiring, so, this seemed consistant.

ChuckiC4 took 1 coil pack off the '96 SE and replaced the #3 / #6 coil pack on the '97 SSEi, and the check engine light went off, and the car runs good again.

He is planning to replace all 3 coil packs, and probably the ICM as well. Do you guys suggest a specific brand? or should we get OEM? Where do you guys buy your coils? Is there a good source for good prices on good parts?

Thanks for the advice, and for helping us get this Bonne up and running again. I can't tell you what a relief it is to see him happy again.

Sam B.
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