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Signs of Bad Ignition Coil vs Spark Plug & Fuel Injector (9 Tests to Find and Fix Problem)
Bad ignition coil, fuel injector or spark plug—which one is actually causing your engine misfire? In this video, I’ll show you 9 practical tests that can help you find the REAL problem before you waste money replacing good parts. A bad ignition coil, clogged fuel injector and worn spark plug can produce almost identical symptoms: rough idle ...
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