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Old 04-24-2011, 01:10 PM
Mpsoldier Mpsoldier is offline
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Default Engine noise, maybe a lifter????

I have a 2004 Ranger, 4x4, 4.0 5 speed with 79,000 miles on it. I just bought the truck while I was overseas with the help of people to check it out for me before I made the purchase. Well when I got home to see in person. I noticed everytime I start it, it makes the sound as if I just change the oil. It rattles for a 1/2 a second then stops. Now after driving it for a while, I notice it making a more fait rattling sound above 2500rpm just about all the time. Whether the engine has a load on it or not. So I was thinking it was a weak lifter or something??? Any ideas???
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Old 04-24-2011, 02:06 PM
mickblock mickblock is offline
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Default Re: Engine noise, maybe a lifter????

It's not injector noise?
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  #3  
Old 04-24-2011, 03:41 PM
Botta Ranger Botta Ranger is offline
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Default Re: Engine noise, maybe a lifter????

Change the oil filter for a Motorcraft so you know you have an anti-drainback valve and see if that fixes startup noise. Cam chain tensioner needs oil pressure RIGHT NOW.
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Old 04-24-2011, 04:06 PM
FX4OR FX4OR is offline
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Default Re: Engine noise, maybe a lifter????

those symptoms are textbook of primary timing chain tensioner/guide wear. but that problem was fixed a few years before your truck was built, so I'm not positive.
as for the start up rattle, that may be the hydraulic tensioners for the cam chains, one in front for the left bank, and one in the rear for the right bank. they screw in to the cylinder head externally with a 27mm socket. they have an internal spring and are also fed by oil pressure. over time the spring wears out, allowing them to give the cam chains more slack until oil pressure can rebuild in the top end to assist the springs in providing tension to the chains. the noise you are hearing are the chains slapping the loose guides before they provide this tension.
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this is as per Ford repair bulletin #00M12 i believe
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Last edited by FX4OR; 04-24-2011 at 04:25 PM.
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Old 04-24-2011, 05:43 PM
Mpsoldier Mpsoldier is offline
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Default Re: Engine noise, maybe a lifter????

Primarly I drive it around post, so it doesnt get up to temp. But I drove it into barstow today and when I got into town, I reved it up and I didnt hear the noise. I just changed my oil, but I didnt use a motorcraft filter. But I'll do that and see if that fixes the issue. If it is the tensioners, thats going to suck to fix...LOL. I'll let you know what I find. Thanks for the help.
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Old 04-25-2011, 04:51 AM
Botta Ranger Botta Ranger is offline
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Default Re: Engine noise, maybe a lifter????

Other oil filters should have the check valve and probably do but I know the Motocraft does. Cheap troubleshooting anyway. Good luck.
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