Slight Miss - Me thinking COPs. - Mustang Evolution

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Old 07-27-2012, 09:21 AM   #1
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Slight Miss - Me thinking COPs.

So I've got 121000 on my 99 GT Vert and its acting a little funny. At about 40-50 mph constant throttle it misses and struggles, also it idles funny sometimes. I'm thinking..I can't think of the word..lol. Intervally bad coil? I can't remember, you guys know though.
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Old 07-27-2012, 12:54 PM   #2
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Re: Slight Miss - Me thinking COPs.

yeah start with replacing your plugs and COPS, that mileage its best to hit 2 birds with one stone. Can you feel a slight jerk when at cruising speed?
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Old 07-27-2012, 01:28 PM   #3
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Check plugs and coils even throttle body
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Old 07-28-2012, 12:14 AM   #4
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Yeah it acts like its struggling at speed, even with cruise on. Not at full ever, just when its constant.
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Old 07-29-2012, 04:25 AM   #5
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Ya that sounds like a COP going out, better grab one and keep it in the trunk for when it finally gives out. The word u were searching for was "intermittent"
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Old 07-29-2012, 03:02 PM   #6
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I just bought a pack of Accel Super coils (8) because I noticed when I opened the hood, 6 were OEM and 2 were aftermarket, which tells me they've been going bad. I just bought em all. Thanks for the tip on the high temp silicone, will do.
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Old 08-05-2012, 02:59 PM   #7
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Changed to the Accel, and whew what a difference. The pwoer is much smoother through the band. Or maybe that's how its supposed to feel, lol. Either way, no skip!
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Old 08-05-2012, 03:01 PM   #8
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Quote:
Originally Posted by Pualso
Changed to the Accel, and whew what a difference. The pwoer is much smoother through the band. Or maybe that's how its supposed to feel, lol. Either way, no skip!
Great news! Thanks for keeping us updated!
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