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  1. General Discussion
    Just curious what’s there to look out for on these trucks? What’s the highest you’d want to see your egts? Can you install an bigger or better radiator for better cooling ? If so what brand? What will Gain with a bigger inter cooler? Do I absolutely have to have head studs? I’m not racing this...
  2. 06-07 LBZ & LLY Duramax Powertrain
    I have just replaced my CP3 pump and all seems to be fine except I have a new noise that has developed. When I put the engine under a load (like going up a good hill or hammering on it) I can hear a distinct whine. It is not normal turbo whine it sounds more like a powersteering pump low on...
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