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Old 01-17-2017, 10:02 PM
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My friend has an 05 f150 5.4 and has ran it for who knows how long with out oil. It knocks for about 10 seconds on startup then stops. Any ideas of what it could be. I thought it was rod knock but i havent seen it go away after a certain time. It may be though. Any help is good
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Old 01-18-2017, 06:23 AM
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What do you mean without oil ? It holds 7 quarts. He ran it empty ? Where did all his oil go ?
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Old 01-18-2017, 07:33 AM
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Originally Posted by Gr8carz
My friend has an 05 f150 5.4 and has ran it for who knows how long with out oil.


WHAT? Ouch! Buy a bicycle it doesn't require oil or very much BASIC maintenance.
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Old 01-18-2017, 12:38 PM
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It had a leak that he kept ignoring and we put 5 quarts in it
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Old 01-18-2017, 01:16 PM
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my guess is a bearing or lifter tap. do a compression test and see if it still is healthy enough to run. this is why some people don't deserve nice things....
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Old 01-19-2017, 08:36 PM
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Originally Posted by Gr8carz
My friend has an 05 f150 5.4 and has ran it for who knows how long with out oil. It knocks for about 10 seconds on startup then stops. Any ideas of what it could be. I thought it was rod knock but i havent seen it go away after a certain time. It may be though. Any help is good
What stops? The engine or the knock?
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Old 01-19-2017, 11:19 PM
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The knocking stops ans runs just fine until he shuts it off then knocks when it starts back up
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Old 01-19-2017, 11:30 PM
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Only diagnosis have is your friend is a dumb ***.
As for the knock, can't help.
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Old 01-20-2017, 06:24 AM
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Anyone thinking timing chain rattle?
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Old 01-20-2017, 09:00 AM
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Can you post a video for us to hear?
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