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2004 Hyundai Elantra Question: crankshaft seal keeps breaking



willhyundai333, Durham, NC, November 17, 2009, 12:44

front crankshaft seal blew out of nowhere. they put a new one in and that one blew immediately. what could be causing this?

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  • Answer #1

    November 17, 2009, 13:27

    Customer Concern: Front crank seal repeat failures, pushing out.
    Tests/Procedures: 1. Check crank case pressure (blow by) at wide open throttle.

    2. Check and clean the drain hole in the oil pump housing at about the 6 o'clock position just behind the seal.
    Potential Causes: Excessive Blow-By
    Restricted Seal Drain

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  • Answer #2

    November 17, 2009, 17:17

    Excellent information autoknowhow! I'm assuming this is a technical service bulletin? Can you please post the TSB# if it is indeed a bulletin? thanks!

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