Weird Sound on Cold Start...help!

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Apr 17, 2005 | 10:57 PM

KyEdExpedition

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Weird Sound on Cold Start...help!

Hey guys,

This is on a 97 Expedition 5.4 4x4 w/ about 65,000 miles.

If the truck hasn't been started in awhile (like over night) on start up, it makes a weird rattling sound or a squeaking sound. It's immediatly aftert the truck is done cranking and the RPMS go up. It lasts for about 3-4 seconds and it just doesnt sound good. The way I describe the sound is something like if you have a box fan and the cover is off and you were to drop a tool into the fan and it would clack around for a minute. lol. If you are to start the truck after its warm, actually, if you start it like even 3 hours after its been started, it will not rattle. Just on the first start after its been sitting. What could this be??

Any help is appreciated.

-Kyle.

Apr 18, 2005 | 03:32 AM

Monsta

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From: Washington State

What brand & weight oil are you using and what brand oil filter are you using?

Apr 18, 2005 | 11:02 AM

PaulC

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As Monsta is hinting, I'm betting on a bad or incorrect oil filter that either lacks an anti-drainback valve, or has such a valve, but stuck open.

Apr 18, 2005 | 11:56 AM

Luzer27

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From: Tucson

One more idea. Turn the A/C off before shutting the truck off, even if it is on heat etc... the compressor always runs on these things to dry the air. Try this and see if it stops then we can explain that later. As far as the oil filter they have a anti-drain back valve in them, get a filter with a good silicon valve, the cheap ones use plastic. My filter is remotely located and I went through several Fxxx filters before reading of the drop in quality. I suggest the motorcraft.

Dave

Apr 18, 2005 | 12:48 PM

KyEdExpedition

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I believe I used 10W-30. I know the filter is the fram filter from wal mart. What would be a good oil to use? they have motor craft semi synthetic 5w-30, would that work good in the 5.4? I will also use the motor craft filter. We always try to use the motor craft oil + filter in our Taurus SHO...so I guess well have to try it and see if it works in the Expedition.

-Kyle

Apr 18, 2005 | 01:19 PM

PaulC

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Good plan, Kyle.

Apr 18, 2005 | 01:20 PM

scholzee

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From: Grand Island, NY

My 2001 5.4 manual calls out semi synthetic 5-20. I also get The motorcraft oil from walmart with the motorcraft filter, best prices around. My walmarts around here do not seem to be carrying the motorcraft brand anymore.