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Old 04-15-2012, 05:09 PM   #11
VinnyB
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Originally Posted by whynotthinkwhynot View Post
That's interesting..... it should only work if you touch the back strap to the block. Then the spark is between the center conductor and the back strap not between the plug and the block.

Yes and no. Even spark plug testers like I was mentioning earlier can be misleading. You can have a coil that is firing a plug too much, or it's firing, but not enough spark. You simply know that you have spark, but not if that spark is enough or right on time.

If you have an electrical tester, you should do a resistance check of the secondaries on the coil to be sure you're within resistance specs.

The back strap?
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Old 04-15-2012, 06:42 PM   #12
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Or cathode if you prefer, it's the little hook that curves up from the threads. The spark should be between that hook and the center conductor.
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Old 04-15-2012, 06:51 PM   #13
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Or cathode if you prefer, it's the little hook that curves up from the threads. The spark should be between that hook and the center conductor.
Ahh ok, I know what your talkin about now. I actually had that hooked part pointed towards the block.

Quick update:

As it turned out, it was the coil pack all along. I'll be damned if I know how changing the t-housing made the coil go bad though. Unless by some off the wall chance some coolant splashed onto the contacts.

I appreciate the help that you, Mike, and BC offered, thanks!
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Old 04-15-2012, 07:22 PM   #14
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Originally Posted by VinnyB View Post
Quick update:
As it turned out, it was the coil pack all along. I'll be damned if I know how changing the t-housing made the coil go bad though.
Coincidence or possibly when you installed the new coil pack you properly re-seated/dried out a wire in the coil connector or originally starting the car with the wire disconnected grounded something that shouldn't have been.
To truly isolate whether it's the coil or something else, you can swap the old coil back and see if the misfire returns.
Having said that, if it runs, it runs. Now at least you know where to look if the problem returns in the future. Glad you got it fixed.
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