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Old 10-29-2011, 10:39 PM
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snrusnak snrusnak is offline
Dodge Ram Forum Senior Member
 
Join Date: Jan 2011
Location: Orlando
Age: 28
Posts: 13,507
Gender: Male
Vehicle: 2010 Dodge Ram 1500
Trim Level: SLT
Color: White
Engine: 2008-20?? 287ci (4.7L) PowerTech V8 310hp 330lb/ft
Rep Power: 13
Rep:1385
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I don't believe what you're hearing is spark knock. I think the truck has a knock sensor and will retard timing if it is knocking no matter what tune and octane you are using(at least that's the way it's supposed to work). I fear it is rod knock or piston slap. Do you think the noise would show up on video? Maybe you can post it and we can try to identify it. Also, I would not put any more additives in the engine, only oil. Additives can hurt things instead of make them better. How many miles on the truck? And how many miles when you bought it?

I find it very odd you randomly got those codes, they should have nothing to do with the knocking you're hearing. I'd try setting it back to stock, and driving it for a long time and see if any codes come back and if the knock goes away. Like maybe days-weeks. A few tanks of fuel...
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