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Nasty shaking and rattling at idle.

6942 Views 3 Replies 2 Participants Last post by  Mr Mac
As it cools down in Minnesota my 5.4L quiets down. But if I drive it far enough and get it good and warm the oil pressure will fall off and the idle will start to shake, rattle and roll. What's the probable cause for the drop? 115K?
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Has the check engine light come on at all? It might be worth a look to see if any codes are present. Most chain parts stores can help with that part of the diagnosis.
Yes, the check engine light is on now. I'll have it checked again. thanks
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