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5.4 buzzing noise

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Old 11-13-2013, 05:00 PM
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Default 5.4 buzzing noise

My 5.4 is making this weird buzzing noise at idle. It almost sounds like a a piece of short plastic stuck in a bike spoke. It's coming from the passenger side of the engine. I took a video but it is still pending on the you tube upload so I will post the link as soon as it's approved. I don't really feel any Power loss, but the buzzing as been there since I bought the truck so I might have lost power and not know it. I an getting crazy mpg tho. Thanks for the help
Old 11-13-2013, 05:56 PM
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That's from the wrong PCV valve. Have to run the Motorcraft PCV. Motorcraft are the only PCV's that have the correct margins.

Others can cause premature engine death, they have to breath lol.
Old 11-13-2013, 06:07 PM
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Originally Posted by Jbrew
That's from the wrong PCV valve. Have to run the Motorcraft PCV. Motorcraft are the only PCV's that have the correct margins.

Others can cause premature engine death, they have to breath lol.
so my truck is a ticking time bomb?! Is it really that serious
Old 11-13-2013, 06:12 PM
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Here's the video

Old 11-13-2013, 06:23 PM
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Originally Posted by 2thousand5.4
so my truck is a ticking time bomb?! Is it really that serious
It's a ticking something and yea, that sounds serious. You can just stethoscope it, but I'd just yank the the PCV out in in order to determine, - takes all of 2 seconds, - no tools required.

Almost sound like something came loose or broke internally, -Timing chain guard, follower or other.

Make sure your plugs are tight on that side as well.

You can also pull the serp belt then start it, - too make sure it's not a pulley.

Should be fairly simple to narrow down or make a better determination.
Old 11-13-2013, 06:26 PM
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Originally Posted by Jbrew
It's a ticking something. You can just stethossope it, but I'd just yank the the PCV out in in order to determine, - takes all of 2 seconds, - no tools required.

Almost sound like something came loose or broke internally, -Timing chain guard, follower or other.

Make sure your plugs are tite on that side as well.

You can also pull the serp belt then start it, - too make sure it's not a pully.

Should be fairly simple to narrow down or make a better determination.
Not a serp belt or plug I replaced those when I changed my intake manifold 2 months ago. How hard is a timing chain gaurd to change
Old 11-13-2013, 06:30 PM
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Originally Posted by Jbrew
It's a ticking something and yea, that sounds serious. You can just stethoscope it, but I'd just yank the the PCV out in in order to determine, - takes all of 2 seconds, - no tools required.

Almost sound like something came loose or broke internally, -Timing chain guard, follower or other.

Make sure your plugs are tight on that side as well.

You can also pull the serp belt then start it, - too make sure it's not a pulley.

Should be fairly simple to narrow down or make a better determination.
It's the PCV I just pulled it with the engine running and I could feel it vibrating and rattling around
Old 11-13-2013, 06:31 PM
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Originally Posted by 2thousand5.4
Not a serp belt or plug I replaced those when I changed my intake manifold 2 months ago.
Never said it was the serp belt lol. None of the matters anyway.


Originally Posted by 2thousand5.4
How hard is a timing chain gaurd to change
Hard.
Old 11-13-2013, 06:58 PM
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Originally Posted by Jbrew
Never said it was the serp belt lol. None of the matters anyway.



Hard.
Thanks for the help. I'll be ordering a new PCV valve when my mom gets home
Old 11-13-2013, 08:41 PM
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No problem.

MOTORCRAFT Part # EV238,- Kit w/grommet

RA has them for 5 bucks.


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