ignition coils - 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 11-05-2004, 08:43 AM   #1
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Is there a way they can be tested?
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Old 11-05-2004, 08:45 AM   #2
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Best procedure for testing them is bolting them up to another 3800. The testers at AutoZone (and the like) aren't accurate.
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Old 11-05-2004, 10:29 AM   #3
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Check out techinfo for the procedure.
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Old 11-05-2004, 10:57 AM   #4
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Many coils only fail when hot. Keep that in mind while using Techinfo.
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Old 11-06-2004, 10:52 AM   #5
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Simple test:
I use an OHM meter accross the two terminals of each coil.
You shouls get a reading of close to infinity. If any one coil checks lower than the rest its should be replaced.
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