C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

wierd spark issue help needed

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Old Mar 21, 2005 | 10:00 PM
  #1  
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Default wierd spark issue help needed

I've got a weird no start issue, which was sorta fixed today. It started out with some intermittent no start issues that became a total no start issue. Now, a little history, i put a new cap rotor and coil in within the last year. It seems as though something must have been loose somewhere as the no start was only intermittent. Fuel pressure is fine, 40+ psi, and holds well. So i decided to pull the cap, it didnt look just pristine since it's not all that old. Under the rotor, the yellow wire out of the pick-up was a little loose, but should be making connection. It tightened it, still no start. I decided to go ahead and grab a new cap and rotor, to see if that was the issue. Sure enough, it started right up. But now, its making a weird noise, like a sparking or arcing type noise. Nothing seems to be shorting, no codes have come up, but it still seems weird to me. Is this simply the result of a actual well working higher quality coil and cap? I have no clue how to trouble shoot this one. All i did was put a new cap and coil on. Now I have spark, but this ticking seems awful loud, louder than the injectors even.
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Old Mar 22, 2005 | 02:10 AM
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If you think its a arcing issue one thing I have tried in the past is check it at night, you can see the sparks (arcs) much better.
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Old Mar 22, 2005 | 04:35 AM
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Did you install the rubber pad over the carbon contact in the center of the distributor?
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Old Mar 22, 2005 | 10:23 AM
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I did put in the rubber pad. Its probably something small, I guess I'll just pull the thing apart and look at everything again.
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Old Mar 23, 2005 | 12:42 AM
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How about the ground strap on the coil, did it get transferred from the old cap?
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Old Mar 23, 2005 | 02:24 AM
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And do the coil and pickup coil wire colors match?

Jake
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