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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
2017 lurching in and out of 8th gear after long drive cycle
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<blockquote data-quote="smurfslayer" data-source="post: 1823333" data-attributes="member: 21926"><p>Not that this is a fix, but if you change to sport does the behavior change at all? I’d think about doing the transmission re-learn process and retest as it sounds like this would be an exceedingly frustrating issue to track down.</p><p></p><p>If you don’t have FORSCAN, get it and the adapter and pull your DTC to see if that sheds any light on things. </p><p></p><p>The 2017 programming was not brilliant. As delivered, my truck would refuse to downshift at highway speeds - 50 or over. Once in 10th, in normal mode, unless it went under 50 and I floored it, she wouldn’t do it. I got revised TCM programming that addressed it rather well. I’d consider a stealership visit for that - I think there’s a TSB for it - rough shifting or erratic shifting.</p></blockquote><p></p>
[QUOTE="smurfslayer, post: 1823333, member: 21926"] Not that this is a fix, but if you change to sport does the behavior change at all? I’d think about doing the transmission re-learn process and retest as it sounds like this would be an exceedingly frustrating issue to track down. If you don’t have FORSCAN, get it and the adapter and pull your DTC to see if that sheds any light on things. The 2017 programming was not brilliant. As delivered, my truck would refuse to downshift at highway speeds - 50 or over. Once in 10th, in normal mode, unless it went under 50 and I floored it, she wouldn’t do it. I got revised TCM programming that addressed it rather well. I’d consider a stealership visit for that - I think there’s a TSB for it - rough shifting or erratic shifting. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
2017 lurching in and out of 8th gear after long drive cycle
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