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  1. Chevy Silverado Forum (GMC Sierra)
    So I have a 2005 5.3l with the L33, it has 64k and i have lifted it and for performance upgrades it has a cold air intake and a 3 inch mbrp exhaust with a diablo tune. Now I want to do more mods but I want to keep it safe bc its literally in mint condition and I dont want to ruin it. Any...
  2. General Classifieds
    I'm looking to buy a crew cab Colorado or Canyon 4x4 automatic with the 5.3L V8. I believe these were made from 2009 - 2012. It needs to have A/C and cruise control and prefer cloth interior. 100k miles or less preferred but higher miles would be considered depending on the condition. Since I...
  3. Chevy Silverado Forum (GMC Sierra)
    Hello. I have a 2004 silverado with the 5.3l vortec. Check engine light is on with code P0327 (knock sensor 1 circuit low). Before I take off the intake and replace it, I was wondering if someone could tell me what steps to do to verify it's the actual sensor itself and not something else. I've...
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