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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Cam Phasers Plus Catalytic Converter
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<blockquote data-quote="Predator_Raptor" data-source="post: 1552782" data-attributes="member: 44456"><p>Oh. I swear that people here were getting timing chains checked when cam phaser work was done. I thought a few had stretched chains and others didn't... There was a measurement procedure.</p><p></p><p>SSM 48168 - 2017-2018 F-150, 2018-2019 Expedition/Navigator - 3.5L EcoBoost - Ticking/Tapping Or Rattle Type Noise On Start Up After A Cold Soak</p><p>Some 2017-2018 F-150 vehicles built on or before 10-Jul-2018 and 2018-2019 Expedition/Navigator vehicles built on or before 8-Apr-2019 equipped with a 3.5L EcoBoost engine may exhibit a ticking, tapping, or rattle type noise from the top front cover area of the engine that last 2-5 seconds on initial start-up after a cold soak. This may be due to a worn variable cam timing (VCT) unit. A TSB is expected to be published 4th quarter of 2019. In the interim, replace all 4 VCT units and update the powertrain control module (PCM) calibration. Do not replace timing chains, tensioners, guides or other timing related components unless inspection clearly identifies a concern. Refer to the Workshop Manual (WSM), Section 303-01. Claim the labor required to replace VCTs using published labor operations and PCM programming using M-time. Monitor OASIS for updates.</p></blockquote><p></p>
[QUOTE="Predator_Raptor, post: 1552782, member: 44456"] Oh. I swear that people here were getting timing chains checked when cam phaser work was done. I thought a few had stretched chains and others didn't... There was a measurement procedure. SSM 48168 - 2017-2018 F-150, 2018-2019 Expedition/Navigator - 3.5L EcoBoost - Ticking/Tapping Or Rattle Type Noise On Start Up After A Cold Soak Some 2017-2018 F-150 vehicles built on or before 10-Jul-2018 and 2018-2019 Expedition/Navigator vehicles built on or before 8-Apr-2019 equipped with a 3.5L EcoBoost engine may exhibit a ticking, tapping, or rattle type noise from the top front cover area of the engine that last 2-5 seconds on initial start-up after a cold soak. This may be due to a worn variable cam timing (VCT) unit. A TSB is expected to be published 4th quarter of 2019. In the interim, replace all 4 VCT units and update the powertrain control module (PCM) calibration. Do not replace timing chains, tensioners, guides or other timing related components unless inspection clearly identifies a concern. Refer to the Workshop Manual (WSM), Section 303-01. Claim the labor required to replace VCTs using published labor operations and PCM programming using M-time. Monitor OASIS for updates. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Cam Phasers Plus Catalytic Converter
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