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Old 11-03-2006, 14:48   #1 (permalink)
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Exclamation cold weather, engine clack??? please help

well i have had my 92 crown vic for about a month now, this morning was the first cold day that i have started it, it fires right up, runs quietly, then after about 30 seconds or so, give it a bit of gas and from what sounds like the valve cover area it starts to make a clacking sound, after about 4-5 mins of driving it faded away, does anyone else have this problem or hear of this? thanks for any help.
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Old 02-08-2007, 13:27   #2 (permalink)
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Re: cold weather, engine clack??? please help

I'm having the same problem with my 93 crown vic with 158k. I think it has to do with one of the lifters not getting enough oil pressure. I'm going to try using a heavier oil, I'll let you know how it goes. Mine has been like this for a while, & it's getting worse. I think it's the end of this 4.6.
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Old 02-14-2007, 14:04   #3 (permalink)
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Re: cold weather, engine clack??? please help

Sounds like a good start with the oil.. Also try some Lucas oil stabalizer..I had a simular problem with a toyota and lucas fixed it... I guess stuff goes this way with cars that have over 150K miles lol
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Old 02-14-2007, 18:16   #4 (permalink)
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Re: cold weather, engine clack??? please help

I changed the oil & filter yesterday after only 1000 miles. The oil was already pretty dark & gross, & I don't like the motorcraft filters as much as others. I installed a fram double gaurd & some castrol GTX 10w-40. It definatly helped but the noise is still there. I'll try some oil stabalizer next, thanks for the tip.
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Old 02-17-2007, 22:31   #5 (permalink)
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Re: cold weather, engine clack??? please help

I had the same problem everytime I started my 03 mustang and running 5w30, switch to Mobil 5w20 and after a couple of days no noise, I will stick to syn oil for sure, with motorcraft filter.
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