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Engine knock at idle

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Old Jul 13, 2020 | 10:21 AM
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Default Engine knock at idle

Have a low motor engine knock. I heard the 5.4 Tritions are known for that. What can I do to help this? I can post a video later today.
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Old Jul 13, 2020 | 10:26 AM
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Turn up the radio.
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Old Jul 13, 2020 | 10:32 AM
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Originally Posted by dmichaelsjr
Have a low motor engine knock. I heard the 5.4 Tritions are known for that. What can I do to help this? I can post a video later today.
Never heard of a lower motor knock...upper motor yes..
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Old Jul 13, 2020 | 10:32 AM
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Very helpful.

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Old Jul 13, 2020 | 10:33 AM
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Originally Posted by techrep
Never heard of a lower motor knock...upper motor yes..
It al least sounds that way. If it is top, what could it be.
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Old Jul 13, 2020 | 12:08 PM
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Originally Posted by techrep
Never heard of a lower motor knock...upper motor yes..
He said low, not lower.

I'm thinking he means the knocking you hear from worn out cam phasers. In that case, he needs to do a complete timing job.

Just a note: certain 2008 model year 5.4L's have issues with thrust washers wearing out prematurely. If he has a lower motor knock, it would be this, or journal bearings going bad on the crank.
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Old Jul 13, 2020 | 12:20 PM
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Originally Posted by ShirBlackspots
He said low, not lower.

I'm thinking he means the knocking you hear from worn out cam phasers. In that case, he needs to do a complete timing job.

Just a note: certain 2008 model year 5.4L's have issues with thrust washers wearing out prematurely. If he has a lower motor knock, it would be this, or journal bearings going bad on the crank.

04 5.4 triton: any other symptons that would warrant this?
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Old Jul 13, 2020 | 03:23 PM
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Nope, you have a 2004, so it's the cam phasers, and a general timing job.

A complete timing job with OEM or Melling components (nothing else) involves replacing the cam phasers, VCT solenoids, chains, chain guides, tensioners, oil pump (Melling M340HV specifically), roller followers and lash adjusters; costs about $1400 in all for parts and specialized tools.

After this, you use 5W30 oil.
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