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Rough idle is back even though I just did plugs 20k ago

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Rough idle is back even though I just did plugs 20k ago
graciaweekley Offline
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#3
07-29-2026, 07:47 AM
Old coils absolutely can cause new plugs to foul faster by not firing cleanly at the correct energy level. Coil condition testing alongside a plug replacement is not optional on a B48 showing rough idle symptoms, it is the complete job done correctly.
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RE: Rough idle is back even though I just did plugs 20k ago - by graciaweekley - 07-29-2026, 07:47 AM

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