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  1. J

    Crate motor... worth it? anybody tried it?

    Don't forget the higher mileage rear differential and if 4wd front diff and transfer case.
  2. J

    160A Alternator Normal Operating Voltage

    some light reading on GM's regulated voltage charging system: http://www.remyinc.com/Technician-Bulletin/RemyTechnicalBulletin_June_web.aspx http://ecuflashking.com/07cobaltSS_SC/new_cobalt_charging_system.pdf
  3. J

    Recommendations on Travel Trailer Weight?

    I've put ~7K behind a '07 5.3L tahoe and pulled it through the mountains of WV, with out issue. Just don't get in a hurry or try to win any races. It was only an 18ft car trailer and once out of the mountains/hills I had little issue keeping it at 65-70. I would be ok hooking any of those...
  4. J

    Carmax nightmare

    That it has damage listed in the title history is where you took the biggest hit. This is a vehicle that they would purchase for wholesale only and you received a wholesale offer for a vehicle with a history of damage. The "frame damage" around the spare tire is probably from a newer person...
  5. J

    Oil Additives - Remove Sludge

    The state of the State of California is really off topic. FYI, they fixed their budgetary issues a few years ago. Back on topic: I've run seafoam in the oil of a number of engines. I've seen generally good results. "Best" results were from a '93 Jeep YJ w/ 2.5L. I left it in for 50ish city...
  6. J

    5.3 Used Supercharger?

    with that particular one being local to you, then you have the opportunity to see it and verify that it is complete before you buy it. Not only could you save on shipping, but the guy might be open to a cash offer. That is, if he responds.
  7. J

    New vvt cam installed big problem now. Please help

    Have you double checked the torque on your head bolts? It may be as simple as having missed final torque on one.
  8. J

    PCV House/s? and Catch Can

    This is not correct. You do not "tee" into the PCV line for a CC. It goes in-line. The CC should be sealed and will not cause an air leak.
  9. J

    Roof Rack - Aftermarket vs. Factory - Denali

    What I would suggest, unless you just want to keep your Denali roof rack, is to remove the Denali rack and sell it. Then buy three of this (P/N: Y00221): https://www.etrailer.com/p-Y00221.html You will need three sets to fill factory holes in your roof. Then you can go with whichever Yakima...
  10. J

    WANTED - 2008 Suburban/Yukon XL 2500 LT3

    www.cargurus.com Only shows dealer inventory, but you can set the filter to the trim levels you are wanting
  11. J

    WANTED - 2008 Suburban/Yukon XL 2500 LT3

    I looked for about 6 months before I decided lower mileage was more important than certain features. I ended up going with an 09 w/70k that was low optioned fleet truck. Found a guy on CL parting a LTZ Suburban and bought the interior. Now I just need the time to get it installed. Oddly...
  12. J

    Fine grained VIN decoder?

    You can do that at any number of sites, 2 minutes on Google, or another preferred search engine, and you can find several of them. Some even try to give more information than just the name of the RPO code, not always successfully though. It's all in whether you want to just see the one code...
  13. J

    Horrible fuel economy now?

    Do you actually track your fuel use with pen and paper or vis an app? The on-board computer only uses the last so many miles to compute the figure, but IIRC it starts from 0 when you reset it. I used to know how many miles are used for the avg. So if you reset it, then got caught by a few...
  14. J

    Autotrac Question

    Since there is one sitting in my driveway, I can tell you for a fact, yes it does.
  15. J

    Autotrac Question

    Autotrac is the selectable transfer case with an auto option. It has 2wd, Auto, 4hi and 4low. Autotrac starts about 40 sec into this vid. What the video doesn't say is that when in Auto, the front axle stays locked in so you will usually experience a bit more noise and vibration.
  16. J

    Underhood Lighting

    I'm willing to bet AAA coverage is also a little spotty in Alaska.
  17. J

    Tune up parts/brands?

    Rockauto, autoeverything, and even Amazon will usually cost less than your local stores. The down side is that you are not supporting your local economy, if that sort of thing matters to you. Sometimes Walmart is even competitive on pricing for oil and filters, but some folks refuse to spend...
  18. J

    Underhood Lighting

    I will probably jinx myself by saying this, but I haven't found myself having to change an alternator, or other major component on the side of the road or in a parking lot before. At home, I have plenty of lighting options. Besides, regardless of where your light is coming from, your hands...
  19. J

    Underhood Lighting

    Maybe I am blind, but I fail to see the point. Creative idea though. If I'm at home I have several options for light. If I am not at home, I keep a MAG light in the driver's door pocket...
  20. J

    08 3/4 ton Burb trans

    6l90E in my 09 2500 Suburban.
  21. J

    Will the knocking go away after replacing bad oil pump?

    With the oil pan off, it shouldn't be too difficult to measure bearing clearances for main and rod bearings. Specs are in the service manual. Plastigage for the measurements is inexpensive, but you may need to purchase replacement main cap bolts and rod bolts. If the bearing journals aren't...
  22. J

    Rear Mounted turbo - 2014 GMC Yukon XL (5.3L)

    Wanted to add that you could also look at relocating the battery over to the secondary battery location behind the driver's side headlight. That and removing the the stock airbox should give you enough room for a turbo up under the hood. Accessing the spark plugs would probably lead to the...
  23. J

    Throttle Body Clean --> gas pedal vibration

    Usually, vibration from bad mounts is more pronounced in drive, and sometimes reverse, and clears up some when in park. A vacuum leak could give those symptoms, but would be accompanied by a CEL if it were that bad. The codes causing the CEL would be fuel trim codes for lean conditions, I...
  24. J

    Rear Mounted turbo - 2014 GMC Yukon XL (5.3L)

    Hot Rod Mag ran over 1200 hp through a stock short block on an engine dyno a few years ago. Had over 60 pulls above 1000 HP. They only re-gapped the stock rings. IIRC aftermarket cam heads and intake though. With the LS V8, I wouldn't worry as much about turbo lag, but you will still feel...
  25. J

    Rear Mounted turbo - 2014 GMC Yukon XL (5.3L)

    First, 5 years ago eBay turbos were hit or miss, but mostly miss. That may have changed, but it is something to keep in mind. Are you wanting a twin turbo or a single turbo? The turbos that you have linked are too small for a single turbo setup. EDIT: Yes there are programmers that will...

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