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SportTrac Discussion
Engine & Drivetrain
highway shudder
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<blockquote data-quote="A1cntrler" data-source="post: 1030153" data-attributes="member: 54815"><p>8 new coil packs fixed the issue for me back when I was having the same problem. It's at a certain RPM that it does it (cruising speed on the highway in top gear usually under light acceleration). Turning off the OD drops it down out of top gear and into a higher RPM making it go away. </p><p></p><p></p><p></p><p>I too spent time chasing the misfire and swapping out one pack at a time. Once I got tired of chasing it and put on 8 new packs (Accel from Amazon) the problem went away. I was thinking it was a transmission problem because that's what it felt like from the drivers seat, and even passengers could feel it as well.</p></blockquote><p></p>
[QUOTE="A1cntrler, post: 1030153, member: 54815"] 8 new coil packs fixed the issue for me back when I was having the same problem. It's at a certain RPM that it does it (cruising speed on the highway in top gear usually under light acceleration). Turning off the OD drops it down out of top gear and into a higher RPM making it go away. I too spent time chasing the misfire and swapping out one pack at a time. Once I got tired of chasing it and put on 8 new packs (Accel from Amazon) the problem went away. I was thinking it was a transmission problem because that's what it felt like from the drivers seat, and even passengers could feel it as well. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
highway shudder
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