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  1. donjetman

    Baffling Oil Leak

    Rear main seal and/or its cover https://www.tahoeyukonforum.com/threads/is-it-the-rear-main.109967/#post-1312967
  2. donjetman

    Are motor mounts easy to replace with exhaust manifolds removed?

    How about a link and not just a picture. I don't even know what to call that?
  3. donjetman

    Throttle Position Sensor and throttle gear issue

    This explains alot :) I have a 51 Chevy PU with a 2008 5.3 LY5 in it, and once every year or two the throttle pedal becomes non-reponsive (it idles only). I'll put the new AC Delco # 19259452 cover on the TB per GM TSB# 11-06-04-007C: https://static.nhtsa.gov/odi/tsbs/2012/MC-10138192-9999.pdf
  4. donjetman

    Issues with fueling and low power. 09 Tahoe 5.3

    sounds like a transmission and/or torque converter problem @NickTransmissions
  5. donjetman

    Are motor mounts easy to replace with exhaust manifolds removed?

    Should be easier with the manifolds out of the way. https://www.tahoeyukonforum.com/threads/front-differential-mounts.120260/page-3#post-1676685 and 3 of the 4 corners of my engine needed exhaust manifold bridge clamps...
  6. donjetman

    GM 6L80 Transmission Information Thread

    @Sgt1411 search "clunk" and/or "Klunk" on this forum. motor mount(s), front diff mount(s), transfer case worn chain.
  7. donjetman

    Coolant Hose Change

    They are a PITA :( almost 5 yrs ago I replaced my plastic Ts with billet aluminum Ts: https://www.tahoeyukonforum.com/threads/heater-core-t-connectors-broke.116171/
  8. donjetman

    Mysterious Oil Pan Findings

    You do know? the only way to visually do that is to pull the heads off and pull the lifters out.
  9. donjetman

    AFM Disable Options

    They might have the same result when it comes to emissions ????? But egr system takes some of the exhaust gases and routes them back into the induction system, IMO nothing good comes of that. VVT makes for a more efficient/powerful engine.
  10. donjetman

    What is this plate on my oil pan???

    @paulwaul1369 Those pieces look like a lifter "roller" and needle bearings.
  11. donjetman

    Best Motor Oil?

    Here's another good LSjr video:
  12. donjetman

    What is this plate on my oil pan???

    No access, I've had my pan off twice. It may be for an optional oil pan heater/heating element??? Here's what the inside looks like:
  13. donjetman

    07 yukon denali service 4wd light.

    I've never seen that message. I've had the awd tranfer case out of our 07 Yukon Denali before (2018). There aren't any wire(s)/sensor(s) going to the awd transfer case, or frt or rear differentials, so I don't see how that is possible? UNLESS its a mileage thing and every 100k miles or so it...
  14. donjetman

    AFM Disable Options

    I have some of it too.
  15. donjetman

    AFM Disable Options

    If I had to pick one it would be: https://www.advlubrication.com/ I have 2 different varieties of their passenger car oils that I'll use someday in my daily driver(s). I've seen a lot of excellent results at BITOG forum the last few yrs, so I'm curious to see how it performs in my ride(s).
  16. donjetman

    2009 Yukon SLT with Factory Tow Package Cooling Upgrade

    @drseth Our 07 6.2 Denali has the KNP factory setup, and I can assure you its not adequate for your towing needs. Do what @Geotrash and @Foggy say.
  17. donjetman

    AFM Disable Options

    The reason the Pontiac had such large clearance was because of the "large" width and diameter dimension of its bearings and thus journals. Poor design, and Pontiac wasn't the only one. All machinists know this. Built my first Pontiac 400 Ram Air III out of my 69 GTO in 1976. The LS engine has...
  18. donjetman

    08 tahoe no fuel at the rail

    ya gonna keep it a mystery?
  19. donjetman

    New 2007 Yukon XL Denali Owner looking for a service manual before tracking down oil leaks

    @sleet youtube is your friend
  20. donjetman

    Oil pressure drop after addition of OEM Oil Cooler?

    Intake mainifold bolts: first pass=44 in lbs, second pass=89 in lbs. My valley cover bolts=18 ft lbs; mine were still tight when I pulled off my intake.
  21. donjetman

    New 2007 Yukon XL Denali Owner looking for a service manual before tracking down oil leaks

    My vehicle is a 07 awd Yukon Denali with the non-afm 6.2L L92 w/197k miles. I'm a DIYer.
  22. donjetman

    Dealing with Deposits to Boost Engine Life

    This new product has been discussed the most on BITOGforum in 2024. Lake Speed Jr has done a video on it too: https://www.enginebuildermag.com/2024/06/dealing-with-deposits-to-boost-engine-life/
  23. donjetman

    Oil Filter Efficiency for Cleaner Oil

    And some more: https://bobistheoilguy.com/forums/threads/testing-oil-filters.366690/
  24. donjetman

    Oil Filter Efficiency for Cleaner Oil

    For your reading enjoyment: https://bobistheoilguy.com/forums/threads/would-you-all-like-to-see-iso-4548-12-oil-filter-lab-testing-comparison-efficiency-capacity-pressure-vs-flow-bubble-point-and-burst.334882/page-19#post-5789087
  25. donjetman

    2007 Escalade won’t shift into drive

    A known issue is the shift cable falling off the shift lever on the side of the transmission. Take a quik look.

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