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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    I've been playing with it some. But there is a lot of stuff, and I don't know all of the acronyms etc haha. I've gotten some of it down. But there's quite a bit more I need to learn. Best tuner that I can use on the truck? I'd like to eventually get a tune for it, but for now just so I can bump...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    both my 'fresh air' pcv valve hose, and my 'dirty air' pcv valve hoses are cracked etc. The dirty air one i can actually hear sucking/blowing air, if I fiddle with it it stops. I seem to be able to find the 'clean air' pcv one pretty easily online. The dirty air one I am struggling to get a...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    Replaced the valley pan and vlom orings(original ones were quite flat), intake manifold gasket, oil pressure sensor. Zero change with my oil pressure when hot at an idle. Not sure what else is left other than trying a quart of lucas. Oil pump i guess. Doesn't seem like it would be that to me...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    I'm planning on replacing the swaybar/swaybar bolts. Right now theres nothing there at all lol, just the busted bolts. BTDT as well, I'm from up north. Love living down in the south, where my 16 year old vehicle with 170k miles isnt a rust bucket lol. I just took my exh manifold bolts out with a...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    oh! maybe I can get the air compressor/air ride to work then.
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    I got Alldata diy and from what I've seen in there that 1 large connector seem to be a suspension relay. the wire next to it is the one in my photos i've posted that looks melted. Thats probably why it doesnt have active air anymore. Is the rear air/front air tied together? Or do they operate...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    changed out exhaust manifold gasket, plug wires, valve cover to new style valve cover/gasket. drove it about an hour today, lowest I saw oil pressure hit was about 13psi in gear/idling at about 550rpm. still see close 35-40 psi at about 1100 rpm cruising going to do the intake...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    anyone have any input on those front shocks, or what goes behind the fuse box in the engine bay? @Geotrash
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    about to replace my exh manifold gasket, as it has a leak. looks like oil from valve cover has been leaking on it. I'm seeing posts about replacing valve cover and not just new gaskets/orings. Not sure it applies to me though? Going to be doing exh man gasket along with valve cover gasket (or...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    so if he is correct, it wont stall anymore. it didnt always do it without fail... so I need to drive it some to test it. It is not my daily, it will take some time before I can drive it long enough to test it.
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    It had not gone away as of when i replaced the oring. I haven't driven it long enough since to test if the oil pressure is the cause or not.
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    that makes sense, I've seen conversion kits so assumed the springs were due to no ride control. I def have the light for service suspension(dont see any resistors in that harness at least). I've attached pictures to this post that you wanted to see. It seems to have had front/rear air...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    I'll be replacing the oil pressure sensor for sure while I've got it apart! Thanks Geotrash! I found that my rear shocks are blown(air shocks), and while I've been exploring in the engine bay found that the front shock electrical? connectors are no longer connected to the front shocks (up at...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    Oh ok, well there goes that idea! Its at about 20psi idling in park when hot (about 600 rpms). I'd rather get a tuner, as I will probably dabble with some mods on it after I get everything fixed (longtubes, cam, exhaust most likely). Yessir, more aggressive camshafts pull less vacuum so they...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    any chance that you know what hot idle in gear should be for this motor? I've read multiple different numbers. 550rpm seems low to me(verified with tech 2), but I'm also used to older engines (carb). Thanks!
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    ok thank you, I will check that then next! Much preferred to crawling on the ground for 6 hours haha.
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    Not sure how to check that, but its a 2007 yukon xl 6.2. So I dont believe it was. Should I change the sensor anyways or nah? I have not had the intake manifold off. Is VLOM dod/afm related? I don't believe I have any of that stuff, or would I still have it? I had to google VLOM to be honest...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    got the oil pickup tube oring changed. inspected inside the pan, nothing of note just some sludge etc. it seems to have improved driving pressure at temp, and slightly improved idle oil pressure. instead of 8-10 psi when hot in gear and idling, its at about 14-15psi hot/in gear/idling (about 550...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    well, no difference in idle oil pressure. once hot its still around 10 ish. higher oil pressure when driving though! actually stalled when I pulled into the driveway, then didnt want to start (took 3 trys to get it to start again).
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    Thank you, that is the gas cap I got. So, something else is wrong with my evap stuff. Thank you for the part # on the oring, I've searched a few times and found multiple part #s.
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    I thought the same thing, as when the oil pressure at idle drops down to like 10 ish psi (depends on rpm), it starts idling rough before dying. I read this post today, after I had the truck setup to change the oil, which I'm doing in the AM. Still planning on doing the oil pickup tube o ring...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    Replaced my gas cap with a new AC Delco one for the P0455 code (and because sometimes it spun instead of clicking when tightening). Code went away for a bit, but then I got a 'tighten gas cap' message, then a p0455 gross leak/no flow message. It didn't say the gross leak/no flow message before I...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    Getting ready to order parts. Cam position sensor, 02 sensors. Can i use a parts store or do i need to order gm parts? If so any suggestions on where to get them? Also new gas cap. For the oil pickup tube oring, where can i get that and what other parts/gaskets do i need besides it to get it...
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    What should I be idling at Rpm wise stopped and in drive? I'm seeing roughly 540 rpm, seems low to me? cruising down the road at 1000rpm its at 22 ish psi (havent hooked scanner up when driving to get exact numbers).
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    My 07 Denali XL 'build'/Check Engine Lights/Questions

    oh!! yea I don't want to do that lol.

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