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Showing results for tags 'lq9'.
Found 3 results
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Currently working on a 6.0L V8 (2000 LQ9 I believe) and cannot seem to locate the PCV valve and hose (see image for reference). I was under the impression that they weren’t integrated into the valve cover until around 2005. The body of this truck is a 2000 Sierra 1500 but the engine was replaced from the 4.8 to the 6.0 at some point so I’m guessing for a lot of the component locations. First time poster, any helps appreciated.
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Preface: 06 Sierra, lq9, 165k Currently showing 40psi at cold start and stays there until coolant reaches operating temp. Hot idle will usually sit around 32psi some times dip down to 25psi. Will not go over 65psi at WOT. It used to never be lower than 40psi at idle and would peg out to 80psi at WOT. I changed the oil pressure sending unit hoping that was it, no change. I have not hooked up a mechanical gauge to check it. Looking for some thoughts. Is my gauge cluster just malfunctioning? Oil pump? Pickup tube o-ring? Engine trash? Let me know what you think. I read once upon a time something about gm saying that the engine is only supposed to produce 10psi for every 1000 rpm. I don’t buy that.
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I got a 1999 Chev 2500 with the 6.0 lQ4 with iron heads, i want to direct plug and play with a new motor, do i need an iron head lq4 or can i use a newer aluminum head lq4 for my swap. Im mostly concerned at how the flexplate will bolt up. Since the new motor will already be out and the truck has a lift and 35s would it be a good idea to put a cam in or anything else before i put it in. I can also get a 250xxxkm 6.0 from salvage for about $600 anything to worry about at that milage?
