Half a second chatter at startup

Bolt snapper · May 20, 2019

The title pretty much summarizes my concern. My '04 has a one second or less chatter at startup like a lifter sound. Great oil pressure. Immediately goes away. No sound detectable at idle. Is this normal or is it a progression towards something more serious?

TomB985 · May 20, 2019

Just curious how many miles? Any chance you can post a video?

Almost sounds like a tensor issue with your timing chain. When things wear the chain can slap around until pressure builds and pumps up the tensioners. Just a wild guess though, a video would help us figure this out with some more accuracy.

Cooper · May 21, 2019

Been ignoring my start up rattle for 3 years... not to say its right.

Kenerator · May 21, 2019

Mine did the same thing. I switched to 5-30 Shell Rotella at my last oil change and the clatter at start up is now almost imperceptible.

Bolt snapper · May 21, 2019

TomB985 said:
Just curious how many miles? Any chance you can post a video?
.

I'm at just about 173,000 miles

1955moose · May 23, 2019

You might want to switch to a Ford motorcraft oil filter. Some of the cheaper oil filters don't have a drain back valve, and it affects pressure on start up. Hopefully it's something that easy.

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parkerdoug383 · May 24, 2019

My 04 with 145 thousand has done it for a long time next oil change make sure you use a motorcraft filter.Personally I wouldn't worry about it they all seem to do it.

1955moose · May 24, 2019

Not true. My 2000 doesn't make a peep! Clatter on cold start up is generally a lack of oil between parts. It also could be one or more of the hydraulic lifters in the cylinder head. They get weak, or plugged. For that fix your going to have to disassemble heads, and check or replace each one. Again, lifters usually on the ohc motors act up when warm. Also be sure your oil level is at or above normal, and that it's clean.

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parkerdoug383 · May 26, 2019

It's probably not worth it to disassemble heads and so on .my 04 has had startup noise for 5 years and hasn't gotten any worse and it runs perfect.the cost to tear these engines apart cost far more than these vehicles are worth.you can buy 04's all day long for 1500 to 2500.

keg914 · May 27, 2019

My 03 5.4l does the same thing. She's probably been doing it for about 5 years now. She has about 230k miles and still runs great.

Half a second chatter at startup

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