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No start-up rattle!

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Old Dec 15, 2007 | 04:48 AM
  #1  
dmerc's Avatar
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From: NW Ohio
Default No start-up rattle!

FYI,

There was a thread about those with a 2-3 second rattle/knock after sitting overnight. It was on "another" forum.

Someone posted that a Motorcraft FL-910 filter fixed his, so I changed my filter again (3rd one in 2500 miles) and my first start up this morning had NO KNOCK! Apparently, all antidrain back valves are not equal!

I had a knock from day one, straight off the dealer's lot, so I'm pretty stoked!! Hope it's gone for good!!
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Old Mar 5, 2008 | 07:13 PM
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From: Plainfield, IN
Default

A bad oil filter with a weak or not working drain back valve will cause a dry start every time.

If you buy cheap oil filters you will know when you get a bad one. Listen for the dry start knock.

Last edited by IndianaJK; Mar 5, 2008 at 07:17 PM.
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