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1997 Mercury Sable Question: Why is the engine make a knocking sound when idling not so much w u ouch the gas

 

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cburdette31, 3.0L V6, Pleasant Hope, MO, November 26, 2013, 10:51
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There is a loud knocking sound coming from top end twards ack of motor but when you push the gas a bring the rpm it don't knock as loud

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    cardocIII from Gillespie's Auto Service, November 26, 2013, 11:53
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     Master

    Possibly the camshaft sensor pedestal is wearing out.

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    cburdette31, November 26, 2013, 16:56
     Rookie

    How would One go about testing it to see if that is what it is

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    cardocIII, November 26, 2013, 17:58
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     Master

    You can use a stethoscope if you have one, or a long screwdriver that you can out against it and put your ear to the handle. You may even be able to "feel" it moving inside if you touch it. The best way would be to have a tech check it out for you.

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    cburdette31, November 26, 2013, 19:00
     Rookie

    the motor is a 3.0 but its not a dual over head so if you would be so kind as to poss send the specs on where the sensor is located i read something bout a pace that is know to breck off and thank you so much

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