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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Odd Noise During High Acceleration
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<blockquote data-quote="MattRobPhoto" data-source="post: 1399735" data-attributes="member: 36517"><p>2019 - I installed R&B CAI and the Magna-Flow D-Fit Muffler replacement kit.</p><p></p><p></p><p>When I get on it now, of course I hear the "sucking" of the air into the intake up in the upper left front of the truck of which is to be expected. The truck also sounds much better to me. It's not a lot louder of which is GOOD (for me) but the note is deeper and better (to me). </p><p></p><p>I've noticed now that when I "hit it" full open... it's all good until I hit about 90mph and then I get this harsh loud buzzing/vibrating type/growling/howling type sound that sounds like it's underneath me. What could this be?</p><p></p><p>It's hard to explain the sound... it's like all of a sudden, this loud sound happens. It's not high pitched at all, and it doesn't seem to affect the continued acceleration or anything. </p><p></p><p>My clamps and all are solid tight on the exhaust pipes (from what I can tell) The only "question" I would have in the re-install of the exhaust is where that big coupler is on the driver's side pipe of the two pipes BEFORE going into the muffler. There's that OEM coupler that you have to reconnect and use. It's only on that one side. I'm not CERTAIN that I have the new pipe FULLY seated in there. If it's not, it's very close, so I don't know. Everything else lined up perfectly so it must be in there. it's all tight that's for sure.</p><p></p><p>Is this fake engine noise??? or do I have some sort of leak? IF so, why at 90mph or so?? OR is this the overwhelming amount of air being sucked it causing this sound????? I don't know, but it's not a good sound to me. </p><p></p><p>Thoughts?</p><p></p><p>Thanks!</p></blockquote><p></p>
[QUOTE="MattRobPhoto, post: 1399735, member: 36517"] 2019 - I installed R&B CAI and the Magna-Flow D-Fit Muffler replacement kit. When I get on it now, of course I hear the "sucking" of the air into the intake up in the upper left front of the truck of which is to be expected. The truck also sounds much better to me. It's not a lot louder of which is GOOD (for me) but the note is deeper and better (to me). I've noticed now that when I "hit it" full open... it's all good until I hit about 90mph and then I get this harsh loud buzzing/vibrating type/growling/howling type sound that sounds like it's underneath me. What could this be? It's hard to explain the sound... it's like all of a sudden, this loud sound happens. It's not high pitched at all, and it doesn't seem to affect the continued acceleration or anything. My clamps and all are solid tight on the exhaust pipes (from what I can tell) The only "question" I would have in the re-install of the exhaust is where that big coupler is on the driver's side pipe of the two pipes BEFORE going into the muffler. There's that OEM coupler that you have to reconnect and use. It's only on that one side. I'm not CERTAIN that I have the new pipe FULLY seated in there. If it's not, it's very close, so I don't know. Everything else lined up perfectly so it must be in there. it's all tight that's for sure. Is this fake engine noise??? or do I have some sort of leak? IF so, why at 90mph or so?? OR is this the overwhelming amount of air being sucked it causing this sound????? I don't know, but it's not a good sound to me. Thoughts? Thanks! [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Odd Noise During High Acceleration
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