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  1. M

    Crankcase under pressure?

    '05 Taco, 2.7L I have had this truck since 2010 Recently noticed that it is idling rough. Started after I changed the battery. (I have no idea how that's related) Initially, the idle was REALLY low. (300 rpm). Some of the things I have tried so far (and test again after) New spark plugs...
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