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Old 07-08-2016, 09:42 PM   #1
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I've noticed over the past month or so, a shutter in my 97 olds, while climbing hills on the interstate, no cel, and no complete drop of any cylinder, I had replaced the coils, wires, plugs a while back..so all that is good...NO, it was the center coil pak, checked the m-ohms.. and the sucker was 6.64, the other 2 were 9.10..found the problem quick

drove to Oreally'*, traded in, coil, life time warranty...and no more shuddering..

coil only lasted 2 years..that normal on them 30 buck coils?
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Old 07-08-2016, 10:41 PM   #2
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What brand were they?
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Old 07-08-2016, 10:58 PM   #3
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not sure
china stuff...
what ever is on oreally website for around 33 bucks

MasterPro Ignition 2-5192 - Ignition Coil | O'Reilly Auto Parts

im sure the bwd would be a better choice at 39.99
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Old 07-09-2016, 11:54 AM   #4
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What companies do to inflate BS on a product.

Quote:
BRAND INFORMATION
Uses thermally compensated interconnects-So the connecting tabs were soldered on.
Micro-controller design for greater flexibility-This is a standard issue step-up transformer, no microcontrollers inside
New generation IGBT (ignition driver) for superior switching performance-Again, this is just a transformer, nothing more inside.
Powdered metal magnetic core design-Last I knew, transormer cores were not magnetic
Designed to fit the OE wire harness connectors and seals-I would hope so
Custom-engineered bobbin designed to hold magnetic wire in precise location for long-term durability-Wha? The wire is wound around the core itself, then encased with hard plastic

Go with ACDelco D555 ignition coils.
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Old 07-09-2016, 09:31 PM   #5
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lol....

yeah, I seen ac delco on amazon, 3 for 63 dollars total

I may just order them and have backups of china
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Old 07-09-2016, 10:34 PM   #6
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If possible always go AC Delco, or Delphi..
I think the ACDELCO E530C would also be a good choice, that is the professional series, which is usually a little step up from OEM.
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Old 07-10-2016, 10:04 AM   #7
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Quote:
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If possible always go AC Delco, or Delphi..
I think the ACDELCO E530C would also be a good choice, that is the professional series, which is usually a little step up from OEM.
I believe those ones are used on the L67 engines.
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Old 07-10-2016, 01:24 PM   #8
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This is a perfect scenario where I argue in favor of the salvage market.

You can probably pick up the rack of 3 for a similar price. You can test them when you pull them, and your chances of getting a matched set are much higher, especially when you are testing them right there. Coil failures are pretty sporadic as it is.

Plus, as mentioned, the L67 coils (blue tab) can tend to run a tad hotter of a spark than NA sourced units (grey tab). It probably won't make much of a difference though in a performance aspect.
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