The famous 3.5L EcoBoost cold-start rattle is worn cam phasers. This guide covers the full timing chain and phaser replacement.
engine
🚗 Ford F-150
Hard
How to Fix Ford F-150 EcoBoost Cam Phaser Rattle
Red Rocket
·
August 7, 2026
·
⏱ 6-8 hours
·
2011-2018 Ford F-150
0
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Step-by-Step Instructions
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1
Confirm the rattle on cold start is cam phaser noise.
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2
Drain oil and remove the timing cover.
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3
Replace the timing chains, phasers, and tensioners.
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4
Replace the oil pump and screen.
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5
Reassemble, prime oil system, and test.
Tools & Parts Needed
- 🔧 New cam phasers, Timing chain kit, Oil pump, Torque wrench
Frequently Asked Questions
How long does this fix take?
6-8 hours
Do I need special tools?
Yes — see the Tools & Parts list above.
Is this covered under warranty?
Check your vehicle warranty. Some repairs may be covered, especially if the issue is a known defect.
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