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2003 v10 engine knock

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Old Apr 26, 2011 | 09:16 PM
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tgen17
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2003 v10 engine knock

I have an 03 f250 V10 that Ive had for about 4 months. recently developed a knock at about 2000 rpm and above. the weird thing is that is seems to be much worse when the car is in park. If you hold the rpm the knock will fade and sometimes stop alltogether. it will only knock when it is in drive above about 3k rpm. Also it doesnt seem to be consistatnt. sometimes it wont knock even if I floor it. It will also knock when it is cold and I first start it up but only for about a second.
Took it to my backyard mechanic and he determined that it was coming from the bottom end of the engine
truck has 107k and has never towed much. (I knew the former owner)
knock sounds like a woodpecker
Spun rod bearing???
help.
 
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Old Apr 27, 2011 | 10:25 AM
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That sounds like the thrust washer. Time to check the crank end-play.

It COULD be bearings, but check the crank end-play which can be done without removing anything except maybe the fan belt.
 
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Old Apr 27, 2011 | 06:49 PM
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thanks ill give it a try and report back
 
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