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Possible rod knock? (With video)

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Old Apr 12, 2024 | 06:16 PM
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Possible rod knock? (With video)

I recently bought a new to me 2000 f350 7.3 obviously. After only driving it a few hundred miles it’s developed a knocking which I hear mostly at idle and it does increase with slight rpm. I can’t really hear it when driving over other engine noise. It’s easiest to hear from the passenger side. It has new oil and filter new LPOP bc it had a leak as well as a new oil cooler. I did pull the valve cover and unplug each injector and the sound didn’t change. I will link a video for reference. Any input would be much appreciated.

https://youtube.com/shorts/EMcT3PDGFyI?si=yD7c97kOKakt5FjY
 
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Old Apr 13, 2024 | 07:34 AM
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Hi and welcome.

Have you looked for signs of an exhaust leak? Check for soot around manifolds and uppipe connections. I’ve found a leak by feeling while engine was cold.

Air in fuel can also make the noises louder. Does it do it while the tank is full too?
 
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Old Apr 13, 2024 | 11:44 AM
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X2, I'd suspect fuel aeration or exhaust leak myself. A rod doesn't quit knocking just because you're cruising.
 
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Old Apr 13, 2024 | 12:04 PM
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Here's the video of OP


I'm with injector knock caused by fuel aeration or just a worn out injector-s
 
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