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Seized wheel bearing, now engine rattle!

 
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Old 01-27-2014, 11:22 PM
Montana250
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Unhappy Seized wheel bearing, now engine rattle!

I have a 99 F250 V10. About 140k on 2nd engine. Was traveling approximately 20 mph when front passenger side bearing hub seized. No noticeable warning before it seized. Heard lots of torquing under cab as I was pulled over. After tow I replaced bad hub and rotor. On drivers side I replaced rotor and front and lower ball joints. Two days went by and it ran great. Then wham. Major rattling from engine. Sounds like it's coming from under valve covers but can't pin point it. Possible timing chain related? Immediately I thought I blew a plug because I've been down that road before, as so many others have as we'll. checked plugs and all good. My question: is this a mere coincidence that this happened 2 days after seized hub, or is this related? Somehow the seized hub torqued the engine and strained/broke an internal component? The truck will drive and start fine, obviously I am not driving it anymore. Has lack of power however. I was not in 4 wheel drive when it occurred. If anyone can get me pointed in the right direction I would sure appreciate it!!! Thanks so much.
 
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Old 01-28-2014, 02:24 AM
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I would venture to guess that these are seperate issues. The wheel bearing failure is more of a known issue. Since this is the second engine was it from Ford? New or reman? Have you done all the maintenance?
 
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Old 01-28-2014, 06:45 AM
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are you sure it runs fine? could it be a broken valve spring?
 
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Old 01-28-2014, 08:17 AM
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Thanks for responding. The truck seems to have been running fine for the past year. Tranny got hot last summer while towing but I did the flush procedure I found on this site and it has been great since then. The engine, to my weekend warrior mentality, has been running good to great. Year ago I changed out all emission related valves and sensors. Put in new Motorcraft plugs and boots. Helped a lot. Seemed to go thru the oil faster however as I noticed a leak in the back of the block above the starter. Appears to be coming from a threaded square headed bolt. I have always kept up on oil however justed hadn't dove into the leak quite yet. Performance wise is has done great. I hauled a bobcat a couple of weeks ago with no problem at all. The engine is a remanufacture from the original engine. The truck has seen life, but I have always towed smart and never have abused it. Need some help with this one boys!
 
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Old 01-28-2014, 07:24 PM
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engine noise

It might be worth checking your exaust manifold gaskets. The v-10 is known to break exaust studs, and this could lead to a gasket blowout. Mine did, sounds like knocking from inside the cab.
 
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Old 02-04-2014, 05:09 AM
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Sounds like it needs a timing set. Oil leak could be from head gasket.
 
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Old 02-04-2014, 08:31 PM
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Hopefully someone can chime in to let us know if what I'm about to say could be correct, as I am fairly new to the V10 world, but not the mod motor world. My previous truck was a 97 f-150 with the 4.6. I too, had what sounded like a knock in the top end of the engine, but it ran fine.

What the problem turned out to be was the intake runner control motor in the lower intake manifold. I pulled it out and it was like the gears were stripped in it. I replaced it with one out of a used intake manifold and ran great another 70K miles before I sold it.

Just a thought, if these v10's even have an intake runner control.
 
 
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