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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Infamous Cam Phaser Rattle….? AGAIN….?
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<blockquote data-quote="FordTechOne" data-source="post: 1659625" data-attributes="member: 35543"><p>You may be mistaking normal valvetrain noise for a cam phaser noise. It only takes one night/cold soak for the oil to drain from the phasers, which will expose a phaser issue if one exists. After an extended period of sitting, the oil will drain from the heads and lash adjusters. That causes some valvetrain clatter until oil pressure builds up in the heads on the subsequent cold start, which is normal.</p></blockquote><p></p>
[QUOTE="FordTechOne, post: 1659625, member: 35543"] You may be mistaking normal valvetrain noise for a cam phaser noise. It only takes one night/cold soak for the oil to drain from the phasers, which will expose a phaser issue if one exists. After an extended period of sitting, the oil will drain from the heads and lash adjusters. That causes some valvetrain clatter until oil pressure builds up in the heads on the subsequent cold start, which is normal. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Infamous Cam Phaser Rattle….? AGAIN….?
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