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  1. Millennium Falcon

    4-corner steam port setup

    Thanks for the replies, Foggy and Just Fishing. I gather that the air pockets on the back sides of the heads are not a problem with these engines? If not, I'll just not bother with it. Thanks, again, for the replies.
  2. Millennium Falcon

    4-corner steam port setup

    Anyone have a suggestion for a 4-corner steam port kit? I'm looking for something that will fit my 6.2L in stock configuration. I searched and found a thread discussing this, and one fellow mentioned that his 2000 Sierra 5.3 had a factory 4-corner setup. Does anyone know about that or whether...
  3. Millennium Falcon

    H3 mount on sale...

    If anyone is interested: https://www.amazon.com/ACDelco-25847739-Original-Equipment-Motor/dp/B010GPIUBO/ref=sr_1_2?crid=1LWDQSOJ3Z8W5&keywords=gm+25847739&qid=1664999838&qu=eyJxc2MiOiIwLjAwIiwicXNhIjoiMC4wMCIsInFzcCI6IjAuMDAifQ%3D%3D&sprefix=gm+2584%2Caps%2C453&sr=8-2
  4. Millennium Falcon

    The Falcon died...

    Thanks for the reply and tip, Foggy.
  5. Millennium Falcon

    The Falcon died...

    Thanks for the links, swathdiver. I was planning on ordering a trans filter and pan gasket to do just that. I need to see what's in the bottom of the pan. No problem. I need to replace the rear cab mounts on my Sierra, and I was thinking about using the hydraulic mounts to see if they would...
  6. Millennium Falcon

    The Falcon died...

    Can you tell me about it? I don't have any plans to tow with the Yukon since I already have a Sierra with the Duramax engine for towing. The Yukon has 220k miles, and I have no idea if the transmission has been worked on or replaced. I do know downshifting with T/H mode 3-2 hits pretty hard...
  7. Millennium Falcon

    The Falcon died...

    I've replaced the coolant tees, radiator, and electric fan assembly within the last 2-3 years. Do you think they're okay, or should I go ahead and replace them again with the new engine? I have the transmission and engine oil cooler lines that I haven't installed yet, so I'm good there. I...
  8. Millennium Falcon

    The Falcon died...

    I'm going to get into the old engine to find out what happened to cause it to seize. I also want to see if the chinese Delco knockoff spark plugs caused any damage in the combustion chambers as they melted down. I still can't believe it was running as well as it was considering all the plugs...
  9. Millennium Falcon

    The Falcon died...

    Well, I actually found a L9H GM rebuilt engine (Part #19432623). Called a couple different dealers, and one found an engine back east. There are only nine (9) of these engines in the entire country (according to the parts guy), and all of them are customer orders waiting for pickup or install...
  10. Millennium Falcon

    The Falcon died...

    I prefer to do my own work, as well, but, as a shade tree mechanic without the shade tree, I have limits to what I can do. I'd love nothing more than to rebuild this engine and put my own touch to it, but I need to get the wife's car back on the road ASAP. I'd also prefer to have a warranty...
  11. Millennium Falcon

    The Falcon died...

    Thanks My mechanic and I discussed this more last night, and I decided to go with a GM engine for the national warranty. That way, if we have a problem on the road somewhere, we can just find a GM dealer. Yes, the L9H is why we bought a Yukon XL this old. No DOD and 400HP. At the time, this...
  12. Millennium Falcon

    The Falcon died...

    Correct. No, he hasn't gotten into the engine, yet. He's been my mechanic for nearly 20 years, and he has done right by me the whole time; I trust that he isn't trying to take advantage of the situation. Yes, I know these engines are good for high miles, given proper maintenance. This...
  13. Millennium Falcon

    The Falcon died...

    Wife went to pass a doofus driving a semi who pulled out in front of her. She was half-way around him after engaging the Hyperdrive pedal when she heard a strange sound from the engine compartment. Dash lights came on, and the steering got heavy, so she decided to pull over. Fortunately, she...
  14. Millennium Falcon

    09 Yukon Intermittent fan e-fans not running

    Damn!
  15. Millennium Falcon

    Replacing Upstream Oxygen sensors, easier through fender or from underneath

    I don't know how hard it would be to go through the wheel well, but I just did mine a couple weeks ago from underneath. Easier than #8 spark plug.
  16. Millennium Falcon

    Burned spark plugs

    When I went to change the plugs the first time after I bought the vehicle, I found a mix of 41-985 and 41-110. I vaguely remember one or both of those #'s having a little disc of a different metal attached to the ground electrode directly above the center electrode. The replacement 41-110's...
  17. Millennium Falcon

    Burned spark plugs

    That's pretty pathetic for less than 40k miles. Thanks for the responses!
  18. Millennium Falcon

    Tech 2 "stand alone" for diagnostic?

    I bought one, as well. Paid for itself in a couple uses. I bought mine sans case, then went to Harbor Freight and bought one of their Pelican case knock-offs. I believe it was the Apache 4800.
  19. Millennium Falcon

    Burned spark plugs

    Hey, All, I changed out my O2 sensors, and decided to check my plugs while I was at it. I installed these plugs less than 40k miles ago. At the time of purchase, the Delco 41-110 was recommended, and I puchased them from Amazon (yes, I know, now). I bought Delco 41-162 from O'Reilly or...
  20. Millennium Falcon

    2012 Denali Front & Rear Suspension

    Most of the racks and pinions I've seen have the inner tie rods and bellows pre-installed. The shop that did mine used zip ties to secure the bellows after installing the new inner tie rods. I'm going to have to replace them with metal bands before they break. I found a new unit at RockAuto...
  21. Millennium Falcon

    2012 Denali Front & Rear Suspension

    Apologies to anyone who may have been offended by my post. It absolutely was not my intention to diminish anything others have posted here, especially swathdiver and others. They have provided me with invaluable info whenever I've had questions about my vehicle, and they are important...
  22. Millennium Falcon

    2012 Denali Front & Rear Suspension

    I just had the bulk of the front end of my '09 rebuilt using a collection of Delco, Moog, Napa, and Timken parts. I've been sitting on these parts for a while trying to find time to do it, and ultimately, I just paid a shop to get it done. I got myself bent over a barrel to the tune of $1400...
  23. Millennium Falcon

    09 Yukon Intermittent fan e-fans not running

    I don't know if this will still be relevant, but I was having the same problem a couple years ago. Motors were sluggish to start, and one would hang. I had to tap it to get it spinning. I ultimately bought the TYC 622210 7/9 blade fan unit and installed it. The specs on the box label stated...
  24. Millennium Falcon

    Tech 2 Purchase

    Picked up the Apache 4800 case at Harbor Freight yesterday. Got everything to fit nicely. This is a picture of my clone in the case.
  25. Millennium Falcon

    Rust speckling on paint

    This. Many moons ago, I mixed paint for several body shops, and the paint manufacturers put out bulletins about this. At the time, the term "industrial fallout" was used to describe the cause of that surface rust in paint. Basically, it occurs anywhere you can get iron introduced into the...

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