engine vibration I have a 99 ranger with a 4.0. AT ABOUT 2300 RPM there is a significant vibration. The engine runs smoothly up to 2300 and the vibration is barely noticeable above 2300.The vibration is also there if you rev the engine up with the trans. in park but is more pronounced under load when driving it. This condition is gradually getting worse. I have changed plugs and wires and checked out crankshaft dampener pulley. What else should I be checking out? Any help would be appreciated.
Last edited by skranger; 02-05-2007 at 05:53 PM.
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