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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Throttle stuttering on acceleration
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<blockquote data-quote="03'Darin" data-source="post: 1303997" data-attributes="member: 21082"><p>If you are getting pinging/clattering that is different than the issue we are discussing here.</p><p></p><p>First off are you sure it's pinging/clattering? There has been waste gate rattle issues that could possibly be confused with that. Also the cylinder firing/misfiring is monitored pretty closely by the PCM and should trigger an engine light.</p><p></p><p>I'd suggest if you are still under bumper to bumper warranty take it to the dealer. They can monitor the cylinders firing and determine exactly which one it is.</p><p></p><p>Some update on my issue we've been discussing:</p><p></p><p>Every 3.5 Ecoboost motor since 17' (that's when they bumper the tq on the base Eco from 420 to 470 and got the 10spd auto) has this condition. Even the base 3.5 Eco thats not in the Raptor. That motor just isn't nearly as noticeable. The reason the Raptor tune makes it worse is because they are squeezing more power out of the same motor so the condition is more pronounced.</p><p></p><p>Higher octane fuel does reduce the affects but it's defintely still there and noticeable.</p><p></p><p>Out of all of the Raptors we have sold there are only 2 of us that have complained about the issue. Me being one and the first.</p><p></p><p>Cold or even cooler weather makes it more noticeable.</p><p></p><p>I hate it but have learned to deal with it. My truck is creeping up on 34k miles pretty directly.</p><p></p><p>Oh yeah and the spark plug change makes ZERO difference with this.</p></blockquote><p></p>
[QUOTE="03'Darin, post: 1303997, member: 21082"] If you are getting pinging/clattering that is different than the issue we are discussing here. First off are you sure it's pinging/clattering? There has been waste gate rattle issues that could possibly be confused with that. Also the cylinder firing/misfiring is monitored pretty closely by the PCM and should trigger an engine light. I'd suggest if you are still under bumper to bumper warranty take it to the dealer. They can monitor the cylinders firing and determine exactly which one it is. Some update on my issue we've been discussing: Every 3.5 Ecoboost motor since 17' (that's when they bumper the tq on the base Eco from 420 to 470 and got the 10spd auto) has this condition. Even the base 3.5 Eco thats not in the Raptor. That motor just isn't nearly as noticeable. The reason the Raptor tune makes it worse is because they are squeezing more power out of the same motor so the condition is more pronounced. Higher octane fuel does reduce the affects but it's defintely still there and noticeable. Out of all of the Raptors we have sold there are only 2 of us that have complained about the issue. Me being one and the first. Cold or even cooler weather makes it more noticeable. I hate it but have learned to deal with it. My truck is creeping up on 34k miles pretty directly. Oh yeah and the spark plug change makes ZERO difference with this. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Throttle stuttering on acceleration
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