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  1. iamdub

    Intermittent tick starting, what you think from the sound?

    My bet is small exhaust leak.
  2. iamdub

    2007 Yukon 5.3 DOD Delete

    From someone that plugged theirs- it's not necessary at all. I definitely wouldn't do it if I had no other reason to have the pan off. I plugged mine because the valve is set to pop at something like 55-60 psi. There's a pressure release valve built into the oil pump that is open around 50-55...
  3. iamdub

    From Crossville TN

    I'll just say "it takes one to know one".
  4. iamdub

    Sealing up the oil cooler block-off plate once and for all?

    I used the same one Ron linked you to. I only had it about 1.5-2 years but I subjected it to 70+ PSI many times. I gave it to my buddy when I installed an engine oil cooler and he's been running it for about a year now with no problems. He even reused the O-ring...
  5. iamdub

    GeorgeB’s 2013 Suburban LTZ “Fin”

    Did you program the keys yourself after having them cut? Oooo... They have all kinds of options: https://a.co/d/2mpmPJ7 or https://a.co/d/aaFufpA seems cool.
  6. iamdub

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I ain't NEVER ate a cat that tasted like chicken.
  7. iamdub

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Not as many as a Chinese restaurant.
  8. iamdub

    2007 Tahoe (alternator going out?)(YouTube link attached)

    Have a Harbor Freight around you? Invest $8 in a mechanic's stethoscope >HERE<. You'll pinpoint the source and won't have to remove anything or break out any tools. Removing the belt likely would stop the sound, but there are six accessory pulleys so you'd still have to narrow it down. Also...
  9. iamdub

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    The thing is, you're not gonna make anything worse by adding it. The roof and firewall (or more of forward floorboard and the wheel arches) are other hotspots for sound. When I pull my headliner to dye it, I'll insulate the roof.
  10. iamdub

    08 suburban LTZ 5.3 misfire at idle

    The pressure release valve has been known to get stuck open. I think the story I recall seeing was an aluminum shaving left behind from machining wedged the piston in the bore at the open position so it was always bleeding off the pressurized oil. RPM above idle was enough to overcome the...
  11. iamdub

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    All the ones I've done, they stayed on the vehicle. Just unbolted the cat-back pipe and wired it to the side and took a hammer, pry bar, large screwdriver and whatever else would fit in the hole to the ceramic. Periodically start the car and rev it to blow out the dust and chunks. Repeat as...
  12. iamdub

    08 suburban LTZ 5.3 misfire at idle

    I'd try a steeper slope than 15° to 100% confirm the O-ring thing.
  13. iamdub

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    -10dB is perceived by the human ear as half as loud. 45% of that is significant. There are free phone apps for measuring dB. I use Decibel X. I can't say how accurate they are compared to actual test equipment. But for comparison, they should be fine. I'd like to know how an app compares...
  14. iamdub

    08 suburban LTZ 5.3 misfire at idle

    And this steers me back to an AFM-related issue. AFM cylinders are 1, 4, 6 and 7. Yes, there's a #8, but its count is much lower and could be a false detection from the adjoining cylinders. Or, it's the low oil pressure affecting all the lifters but affecting the AFM ones more.
  15. iamdub

    2008 Tahoe/Please help me figure this out!!!

    Has anyone checked the wiring that powers and grounds the pump? Check the wires themselves, the metal contacts inside the connectors, etc. Check 'em at each end. Unplug the connector(s) on the FSCM, inspect, maybe spray with some contact cleaner, then firmly plug back in. The fuel pump is an...
  16. iamdub

    08 suburban LTZ 5.3 misfire at idle

    Oof. Yeah, it's well known that using aftermarket major internal components isn't worth the risk. It's definitely a do it right or do it twice thing. The videos really do sound like a lifter(s), but we still gotta rule out all the other things. Have you verified the spark plugs and wires...
  17. iamdub

    From Crossville TN

    There are a few members here that prove the powers that be accept and keep all types. Even the quiet ones.
  18. iamdub

    08 suburban LTZ 5.3 misfire at idle

    Overfill the oil by 1.5-2 quarts and put your Suburban in a nosedive. See if the idle oil pressure and ticking improves. The lifters are hydraulic so low oil pressure can basically be like they're collapsed. For a regular lifter, this is usually just noisy. An AFM lifter can collapse enough...
  19. iamdub

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Cammed, catless and tuned to exaggerate the idle lope rather than smooth/hide it lol. No visual or butt sniffs here. They test the gas cap seal and plug in to the ALDL to check readiness monitors. For visual cat test, I'd just run exhaust tubing through the stock cat shell. It'll have the...
  20. iamdub

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I recall that being discussed. Didn't know it was put into action. Damn.
  21. iamdub

    From Crossville TN

    I don't think they do that. Try logging in under your original screen name if you wanna pick up where you left off.
  22. iamdub

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    What speakers? A component set with the separate woofer, crossover and tweeter? The Bose amp already crosses over frequencies for each speaker. I'd connect the tweeter to the factory wires as-is. A component set is mostly a waste since the frequencies have already been modified for the...
  23. iamdub

    2004 GMC Yukon XL1500 electrical issues

    Gotcha. Just trying to cover all the bases.
  24. iamdub

    From Crossville TN

    This looks like you: https://www.tahoeyukonforum.com/members/thingraylinetah.89882/ Similar name. All the same, just missing "oe" at the end. Your thread is still here: https://www.tahoeyukonforum.com/threads/thin-gray-line-tahoe-build.130075/
  25. iamdub

    2004 GMC Yukon XL1500 electrical issues

    I'm not the one to have any recommendations for such scanners. But, you still have some free preliminary troubleshooting to do. With it idling, have the windows down and pop the hood. Shake and tug test all the wiring, starting at the battery. I wouldn't worry with the engine sensor...

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