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1999 Ford Ranger Question: Ford/ Mazda 4x4 Auto has developed a skip/ buck at low RPMs while in high gear.

 

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NY7170, 4.0L V6, Northampton, MA, January 12, 2013, 09:28
 Rookie

Have replace plugs wire twice, EGR Valve, intake gasget twice, and fuel sensor.

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  • Answer #1

    Tomiko January 12, 2013, 12:35
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     Journeyman

    is the check engine light on?

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    NY7170, January 25, 2013, 13:30
     Rookie

    No not at this time... Just had a vacume leak test with smoke and checked plugs, wires again still skips when warmed up but not when cold. It is like a miss or buck in high gear 1500-2000 RPM.

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