Thread: Strange noise front of engine bay 300d OM617
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Old 09-14-2012, 02:50 PM
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Orv Orv is offline
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If it's electrical it'll probably happen whether the engine's running or not. Try doing a 'wiggle test' on the wiring.

Another option is to wait until it's dark out and watch the engine run -- any arcing should be pretty easy to spot then.
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