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Old 12-30-2012, 06:03 PM
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7.3 knock

I have a 97 f350 7.3 powerstroke with 197,000 miles on it.My question for you guys is that it is making a ticking noise almost like a lifter tap.It gets faster the higher the rpm but at idle i can not hear it at all. Truck running good and no smoke what so ever.It sounds like its from the drivers side.Could it be injector knock on the number eight injector? Or could it be something worse?? Thanks for any help
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Old 01-01-2013, 06:12 AM
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all these memebers and no one has had this problem??? any help???
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Old 01-01-2013, 06:30 AM
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if it goes faster as your rpms go up it would be your wrist pin. if it don't and stays the same then i would check for air leak or your fuel pump behind your fuel bowl. the wrist pin on my truck has been bad for little over fivers and nothing has happen and it is still bad.

Last edited by bluetickman; 01-01-2013 at 06:34 AM.
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Old 01-01-2013, 04:42 PM
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where is the wrist pin?? You dont see it as an injector knock?
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Old 01-01-2013, 05:25 PM
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Wrist pin is the pin that connects the rod to the piston
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Old 01-01-2013, 05:28 PM
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stupid question but can it be fixed with the motor still in or do you have to pull the motor?
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Old 01-01-2013, 05:36 PM
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Have to pull the motor and if ur gonna do it i recommend freshening the motor. New bearings piston rings ect.
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Old 01-01-2013, 08:06 PM
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you have to pull he motor cause you have to get at it from the the bottom of the motor. if it was your injector it wouldn't speed up. at least in my other diesel it didn't.when you have a bad injector your truck will idle ruff.
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Old 01-06-2013, 02:11 PM
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well the verdict is in and it is a cracked exhaust manifold now my question is should i go factory or something else???
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