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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
My Issues Post Cam Phaser Replacement
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<blockquote data-quote="Eship" data-source="post: 1636581" data-attributes="member: 47641"><p>Update</p><p></p><p>The saga continues. Truck makes a loud "cam phaser" clacking noise on cold start. It also makes the noise after being parked for 20+ minutes after bringing engine to running temp. On cold start, the noise starts off faint or it can't be heard and then gets louder and becomes pronounced once the truck transitions from high idle and settles into normal idle. If left to idle, the truck will exhibit the loud clack for about one minute after idle transition and then the noise goes away. If you cold start and then drive off, the sound will come on and then fade off within a span of about 20 seconds. While driving off cold (parking lot speed) the clacking sound turns into a clicking sound that I can only compare to a big game fishing reel that has been set to free spool + clicker. Similar symptoms are exhibited while engine is hot and after being parked for 20+ minutes except more abbreviated.</p><p></p><p>Another note, the truck did not start making the cam phaser noise until the end of the first day after retrieving the truck from the dealer. So, there were at least two heat cycles and maybe half a dozen start-ups before the clacking sound came on.</p><p></p><p>As stated in previous posts, my truck began exhibiting cam phaser noise before I sent it in for the initial warranty service appointment, but it was very faint. The noise is loud now.</p><p>Truck has no check engine light, but is displaying DTC P0021. For the most part, the truck performs/drives normally, but I can feel some slight hesitations/stumbles intermittently under moderate throttle scenarios.</p><p></p><p>Truck goes back to the shop tomorrow. Will report back what info I gather.</p></blockquote><p></p>
[QUOTE="Eship, post: 1636581, member: 47641"] Update The saga continues. Truck makes a loud "cam phaser" clacking noise on cold start. It also makes the noise after being parked for 20+ minutes after bringing engine to running temp. On cold start, the noise starts off faint or it can't be heard and then gets louder and becomes pronounced once the truck transitions from high idle and settles into normal idle. If left to idle, the truck will exhibit the loud clack for about one minute after idle transition and then the noise goes away. If you cold start and then drive off, the sound will come on and then fade off within a span of about 20 seconds. While driving off cold (parking lot speed) the clacking sound turns into a clicking sound that I can only compare to a big game fishing reel that has been set to free spool + clicker. Similar symptoms are exhibited while engine is hot and after being parked for 20+ minutes except more abbreviated. Another note, the truck did not start making the cam phaser noise until the end of the first day after retrieving the truck from the dealer. So, there were at least two heat cycles and maybe half a dozen start-ups before the clacking sound came on. As stated in previous posts, my truck began exhibiting cam phaser noise before I sent it in for the initial warranty service appointment, but it was very faint. The noise is loud now. Truck has no check engine light, but is displaying DTC P0021. For the most part, the truck performs/drives normally, but I can feel some slight hesitations/stumbles intermittently under moderate throttle scenarios. Truck goes back to the shop tomorrow. Will report back what info I gather. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
My Issues Post Cam Phaser Replacement
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