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loud tapping when cold
i dont know but when the engine is cold in the winter you can really hear it, sounds like a blown main bearing, only not. quiets down to a low noise when warmed up but still there. people tell me need new 5000 engine when the engine burns no oil or smokes. a main bearing bangs loudly ALL the time, not just when cold. how do you check EGR ????? i have no engine code.
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