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Coil pack or coil control module?

Tiny
MIKEHENGSTBERGER
  • MEMBER
  • 2003 SATURN L200
  • 108 MILES
My 03 LW200 has no spark on the #4 cylinder only. I was just curious as to which of these items could be the problem? Thanks
Sunday, October 7th, 2012 AT 10:07 PM

16 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Do you have any codes?I would say coil cassette I have replaced alot of those for that problem.
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Sunday, October 7th, 2012 AT 10:15 PM
Tiny
MIKEHENGSTBERGER
  • MEMBER
  • 4 POSTS
The only code was #4 misfiring. I replaced the plugs and it was still misfiring. Checked for spark on each cylinder and #4 was dead. I noticed it looked like there were 2 coils in the coil pack. I seemed if one were bad I would have 2 cylinders misfiring. Both parts (the coil pack and Ingnition control mudule) are about $100 each. I was just seeing if someone knew of a common problem with either so I could purchase the correct one and not spend $200.
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Sunday, October 7th, 2012 AT 10:41 PM
Tiny
SATURNTECH9
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The coil is the common failure for that issue I used to replace those when I worked at the saturn dealership. The coil cassette comes complete with both coils housing etc. Then you swap over your old ignition module.I have seen just one cylinder not spark and it was a bad coil in the coil cassettes. There may be a way to just replace the one coil available in the aftermarket parts.
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Sunday, October 7th, 2012 AT 11:14 PM
Tiny
SATURNTECH9
  • MECHANIC
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Ac delco D512a coil cassette on amazon is only 81.42 on amazon.
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Sunday, October 7th, 2012 AT 11:21 PM
Tiny
MIKEHENGSTBERGER
  • MEMBER
  • 4 POSTS
Thank you and I will post after I try this.
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Monday, October 8th, 2012 AT 2:37 AM
Tiny
SATURNTECH9
  • MECHANIC
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That should be the fix a new coil cassette let me know how it runs.
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Monday, October 8th, 2012 AT 2:45 AM
Tiny
MIKEHENGSTBERGER
  • MEMBER
  • 4 POSTS
The coil cassette as you call it seems to have done the trick.
Thanks
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Tuesday, October 9th, 2012 AT 2:20 AM
Tiny
SATURNTECH9
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Your welcome glad to hear it all the cars I have had with that issue was bad coil cassettes
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Tuesday, October 9th, 2012 AT 2:41 AM
Tiny
JAGUAR11
  • MEMBER
  • 4 POSTS
My car is doing the same thing. Misfire on #4. I've already changed out the ignition coil. Do you think the ignition control module could be the problem? Or maybe the second ignition coil I got was bad?
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Wednesday, March 6th, 2013 AT 5:30 PM
Tiny
SATURNTECH9
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Do you have spark on cylinder 4?
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Thursday, March 7th, 2013 AT 3:23 AM
Tiny
JAGUAR11
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  • 4 POSTS
As far as I know. The code reader said "misfire on #4" and it runs ok when I accelerate. However, when slowing down or idling, the engine gets rough. The car still has plenty of power to accelerate.
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Thursday, March 7th, 2013 AT 5:13 PM
Tiny
SATURNTECH9
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Do you have spark on number 4 cylinder?
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Saturday, March 9th, 2013 AT 4:51 AM
Tiny
JAGUAR11
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  • 4 POSTS
Pretty sure there is a spark on 4. Not sure how id check to see if there is or not.
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Saturday, March 9th, 2013 AT 5:27 AM
Tiny
SATURNTECH9
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Pull the coil cassette out hook a spark plug to the number 4 boot with the cassette plugged in ground the plug crank it over and see if the plug sparks?
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Saturday, March 9th, 2013 AT 5:56 AM
Tiny
JAGUAR11
  • MEMBER
  • 4 POSTS
It had a spark.
I've fixed the problem now. A lifter was stuck in the down position, and a rocker arm was out of alignment. She runs like a new car now. :)
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Thursday, March 28th, 2013 AT 8:57 PM
Tiny
SATURNTECH9
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Glad to hear it.
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+1
Friday, March 29th, 2013 AT 3:15 AM

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