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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Anyone figure out the high pitch whistle sound when shutoff?
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<blockquote data-quote="Badgertits" data-source="post: 1415978" data-attributes="member: 31322"><p>Based on the number of “dead end” threads I’ve found on forums & vids on YouTube I’ve pretty much come to the conclusion it’s “normal” - BUT I’d still like to know wtf it is lol!</p><p></p><p>I hadn’t heard it/forgot about it for a bit then heard it after loading tune & was like “damn I should’ve brought the truck in to dealer to check this out beforehand” but at this point I don’t give a damn as far as that goes b/c it seems very common & have not found any instance where someone claimed a problem/issue related to it.</p><p></p><p>Since I’ve confirmed 5.0 F150s have exhibited the same thing I gotta rule out anything turbo related. Vacuum or high pressure fuel system my best guess.</p></blockquote><p></p>
[QUOTE="Badgertits, post: 1415978, member: 31322"] Based on the number of “dead end” threads I’ve found on forums & vids on YouTube I’ve pretty much come to the conclusion it’s “normal” - BUT I’d still like to know wtf it is lol! I hadn’t heard it/forgot about it for a bit then heard it after loading tune & was like “damn I should’ve brought the truck in to dealer to check this out beforehand” but at this point I don’t give a damn as far as that goes b/c it seems very common & have not found any instance where someone claimed a problem/issue related to it. Since I’ve confirmed 5.0 F150s have exhibited the same thing I gotta rule out anything turbo related. Vacuum or high pressure fuel system my best guess. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Anyone figure out the high pitch whistle sound when shutoff?
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