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Noise at high rpm

Discussion in 'GM Powertrain' started by tgrfn787, Feb 18, 2009.

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  1. tgrfn787

    tgrfn787 New Member

    I recently used a Superchips cortex programmer on my 2006 1500 5.3. I have aftermarket intake, exhaust, and a throttle body "paperweight". On the performance setting I've noticed that at real high rpm this is a slight crackle noise. I am very paranoid about detonation, but hopefully the noise is not that serious. Has anyone else noticed a similar noise? Or do you know what this might be, if anything?

    Thanks, and I hope i did this right because I'm new to the forum.

    Billy
  2. silveradotrailblazer

    silveradotrailblazer New Member 1000 Posts 100 Posts

    Im not familier with the Superchip cotex, but if it has live data in it, see if it shows knock retard. this will tell if its detenation. I have Diablo Preditor programmer and it shows knock retard.
  3. 04sierracrewcab

    04sierracrewcab New Member 1000 Posts 100 Posts

    Welcome to the site!

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