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300i6 Bad noises

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Old Oct 14, 2023 | 10:17 PM
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DTnWD40
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Lightbulb 300i6 Bad noises

Hey everyone,
I've had my straight-six f150 for a while now, but a couple of months ago, the motor started making a nasty noise and began idling really rough. Parked it cause naturally it's not supposed to do that. My dad and I had a couple of ideas, from a stuck lifter to a bad flex plate. I inspected it today, and I didn't see any noticeable fractures on the flex plate. Any Ideas? I just want to get an understanding of how deep I gotta go to get her on the road again. Winter is coming, and my car isn't exactly a snow machine. Also, I miss having the truck as a daily.
Thanks for any help!
P.S. if it's too much work we planned on just buying a replacement motor, swapping that in, and then taking the current motor apart outside of the truck.But if its an easier fix that'd be overkill.
 
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Old Oct 14, 2023 | 11:12 PM
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what year? check for codes?
 
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Old Oct 15, 2023 | 01:43 PM
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It’s a 1987. Haven’t checked for codes, will it throw up something useful?
 
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Old Oct 15, 2023 | 01:49 PM
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Originally Posted by DTnWD40
It’s a 1987. Haven’t checked for codes, will it throw up something useful?
Not necessarily but it's a good place to start. Could you elaborate a little more on what the noise sounded like? Notice any changes in the truck's behavior besides the rough idle? Was it a constant noise or off and on?
 
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