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#1
09-12-2014, 11:43 AM
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Rattle Valvetrain Noise at Start-Up
3.0 DOHC Duratek Engine on a 2002 Sable with 125K on it: This loud rattle/tapping noise just started on our way home from Nevada last Saturday (9-7-14). It only makes the noise at a cold start-up for about 10-15 seconds (or until the oil begins to lubricate the valve train), then the engine is quiet. After the engine is warm, it doesn't make this noise at start-up anymore until the next "cold" start. This car has always had regular oil changes with full synthetic oil and I changed the oil just before we made this trip to Nevada (Kansas to Nevada and back again). Does anyone know what is causing this rattle/tapping noise? Any suggestions would be greatly appreciated. Thanks in advance.
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 2002 Mercury Sable LS Premium Platinum with a 24V Duratech Engine Last edited by mtnlovrs; 12-24-2014 at 01:07 AM. 
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#2
12-24-2014, 01:09 AM
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Re: Rattle Valve Train Noise at Start-Up
This noise completely went away and I never did discover what caused it. The engine runs great now and is very quiet, even from cold starts. Has this happened to anyone else?
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2002 Mercury Sable LS Premium Platinum with a 24V Duratech Engine
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