Knock quiets down
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Junior User
Joined: Apr 2007
Posts: 57
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From: Suffolk Va
Knock quiets down
My 7.3 in my 92 f350 has had a pretty distinctive knock in it for at least 110000 of its 190000 miles and who knows how long before we got the truck. Never really bothered anything that i know of. Truck feels plenty strong and it dont seem to be getting any worse. When i changed the oil in it today i noticed a big difference in the knock. It got right much quieter than before the oil change but was still there. My mechanic tried to tell me it was a rod knock but i just dont buy that. Anyone have any suggestions on what could be causing it?
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
Does the knock diminish after the engine is warm...... mine does and I think mine is piston slap. When I had that piston out I found the sides had some scrappings.
An audible knock could also be a bad injector firing early..........
An audible knock could also be a bad injector firing early..........
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