Do you hear this ticking from inside the car? You might be hearing the clicking of the injectors which many people aren't used to hearing.
Sometimes when you drain the oil air gets in the intake passage to the pump, and that air can allow some of the hydraulic lash adjusters to bleed down. If only one or two do that you can ignore it as they may just take a little longer than normal to pump up again. Those adjusters can also wear a pinhole in the base that lets the oil leak out when the engine is off. That will make them click but it won't be related to changing the oil.
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Saturday, October 20th, 2012 AT 8:37 PM