rebel_horseman
Rt. Wing Extremist
I'm posting this for a friend. He recently bought an '03 3500 single wheel with the SO Cummins and 5-speed. Last night we were driving around with the windows down and I noticed a pronounced knock. We talked about it, and the knock only happens at lower RPMs (I'd say around 1500-1800 if I had to venture a guess) when the engine is not under load, i.e. when under gentle acceleration. He said that this has been going on for a few weeks now, but he hasn't noticed a loss of fuel mileage or power. the engine is all stock with only 18k miles on it.
It sounds like he getting some piston slap, or maybe a dead cylinder, or a stuck valve or something. Anyone else experienced anything like this?
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It sounds like he getting some piston slap, or maybe a dead cylinder, or a stuck valve or something. Anyone else experienced anything like this?
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