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-   -   no spark on number 3 plug (https://www.gmforum.com/1992-1999-91/no-spark-number-3-plug-244329/)

chuckiec4 10-09-2006 01:02 PM

no spark on number 3 plug
 
hi guys i had my 97 bonny ssei s/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

wjcollier07 10-09-2006 01:08 PM

bad coil pack. would be my first suspicion. go to JY, replace all three packs with ignition plate, test, problem fixed. :)

BillBoost37 10-09-2006 01:15 PM

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's also possible the tower is broken or cracked. It may also be your ignition control module.

MadSam 10-09-2006 01:17 PM


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.

BillBoost37 10-09-2006 01:20 PM

JY= junkyard or auto wrecker, aka cheap parts.

chuckiec4 10-09-2006 02:09 PM

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.

MadSam 10-09-2006 02:27 PM

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's a different part number, but if it fits, would it work?

Thanks.
Sam B.

BillBoost37 10-09-2006 02:44 PM

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.

Technical Ted 10-09-2006 06:49 PM

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?

MadSam 10-09-2006 07:53 PM


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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