cam phaser noise
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Joined: Jun 2011
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cam phaser noise
i just got done with 2007 5.4 Triton with cam phaser noise
i replaced phaser, timing chains ,tensioner, oil pump,
and it still made noise at idle when it was hot
so a change the oil to 0w40 and my noise went away .
5w20 starts to brake down at temp of 180 but 0w40 works up to 212
ford will tell you all you need is 25psi of oil pressure what i have seen is you need at least 40psi of oil pressure so if you have noise try 0w40 mobil1
i replaced phaser, timing chains ,tensioner, oil pump,
and it still made noise at idle when it was hot
so a change the oil to 0w40 and my noise went away .
5w20 starts to brake down at temp of 180 but 0w40 works up to 212
ford will tell you all you need is 25psi of oil pressure what i have seen is you need at least 40psi of oil pressure so if you have noise try 0w40 mobil1
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Joined: Feb 2006
Posts: 9
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From: Miami
Interesting results. I have a 2006 f150 fx4 with the 5.4. When hot it sounds like a rod knock, it goes away past 1200 rpm. I have not checked the oil pressure yet. I'm debating whether to change just the Phasers or do the whole timing chains, tensioners etc. It does have 100,000 miles. A switch to 5w30 did not help. I'm willing to try a 5w40 or even a 0w40 before I Tear into the engine. It runs great other than the noise. Any thoughts?
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Skippersauto
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Aug 20, 2016 10:33 PM
