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  1. donjetman

    Oil pressure drop after addition of OEM Oil Cooler?

    The 07 6.2L L92 in my Denali came from the factory with a windage tray bolted to the mains and a baffles in the pan sump. Some brands of oil have more anti-foaming additives than others.
  2. donjetman

    6L80E Trans Trouble

    IMO fluid temp is not your problem. My 197k mile 07 Denali has the factory rpo code KNP trans cooler setup and gets up to 200+*f occasionally when it gets hot driving in TX, NM, etc. I send used dexron6 atf samples off for analysis and as a result I do a dump and fill every 25k miles and also a...
  3. donjetman

    08 tahoe full spool

    Back in the 80s I bought a back halfed Pro Street 69 Camaro with a spooled Dana60. It was horrible on the street. ASAP swapped it for a posi.
  4. donjetman

    2011 Escalade 6.2 l94 DOD/VVT delete

    Melling brand # M365HV according to @Geatrash Dave: https://www.tahoeyukonforum.com/threads/5-3-oil-pressure-advice.140392/#post-1765655
  5. donjetman

    Oil Level -- can't get good reading

    Breathers are for turbocharged or supercharged engines.
  6. donjetman

    2011 Escalade 6.2 l94 DOD/VVT delete

    I have a 07 6.2L Yukon Denali that did NOT come from the factory with DOD/AFM stuff. But it does have a pressure relief valve in the oil pan. I put the GM deflector shield # 12639759 on it per GM TSB...
  7. donjetman

    Towing Heavy Transmission Temps

    Just some thoughts I had: I've owned a few 40K to 50K # motorhomes with 11L & 12.7L diesel engines and Allison 6 speed autos. The rule to keep them from getting hot is "keep the rpm up. Don't lug em." I don't know if the same applies to gasoline engines. For many yrs I've been doing used ATF...
  8. donjetman

    Oil Level -- can't get good reading

    https://www.tahoeyukonforum.com/threads/get-a-catch-can-before-any-mods.49716/page-53#post-1288561
  9. donjetman

    Security light won't turn off!!

    read owners manual about theft deterent systems
  10. donjetman

    Oil Level -- can't get good reading

    the valve cover with its built in pcv (positive crankcase ventilation) system isn't doing its job.
  11. donjetman

    Oil Level -- can't get good reading

    Only 1 valve cover is problematic, the driver side. Install the catch can. It will tell the tale. Mine was catching 1+ oz of oil per 100 miles. That's what stuck my piston rings :( And like the TSB says: do a piston combustion chamber soak/flush to free up your piston rings. I did it almost 6...
  12. donjetman

    Engine Used Oil Analysis Report & Filter Guts

    Go to these websites and read how to. These are the companies I use for oil, atf, & coolant analysis: https://www.oaitesting.com/ https://www.blackstone-labs.com/ https://jglubricantservices.com/ Blackstone is by far the slowest (30+ days) to get results
  13. donjetman

    Oil Level -- can't get good reading

    Piston rings are probaly stuck because of poor valve cover/pvc design. Install a catch can ($40): https://www.tahoeyukonforum.com/threads/get-a-catch-can-before-any-mods.49716/page-53#post-1288561 This will indicate if the pvc/valve cover is the cause of the oil consumption. Read and perform...
  14. donjetman

    Build thread - 3.08 to 3.42 front and rear gear change

    x2 what Geotrash/Dave said, or I have teloscoping stick like tools to hold the pedal down (no second person necessay), or gravity, its slow and easy and a 1 person job. also a couple of times each yr, on a rainy day, I take all my vehicles out (I live in the country) and do a few panic stops so...
  15. donjetman

    Oil Level -- can't get good reading

    On level ground let it sit overnite and check it in the morning. What was a month ago may not be the case today. There are many reasons it may consume oil.
  16. donjetman

    Oil filter for the 5.3

    Fram "Ultra" XG10060 or XG10575, Fram "Endurance" FE10060 or FE10575, Fram "Titanium" FS10060 or FS10575 will all work and are top tier filters.
  17. donjetman

    Is This Camshaft Reusable? Or Too Pitted?

    Amazon non-afm valley cover w/gasket and bolts for $56 is whats on mine :)
  18. donjetman

    Engine Used Oil Analysis Report & Filter Guts

    The What & Why Of Used Oil Analysis
  19. donjetman

    Purchased a 2007 Yukon XL, now to make it reliable!

    @YukonGold12 Techron fuel additive is effective stuff (WalMart, etc).
  20. donjetman

    Purchased a 2007 Yukon XL, now to make it reliable!

    Because of the original poorly designed driver side valve cover, my piston rings had stuck. I changed the valve cover to GM# 12570427, did the piston/combustion chamber soak, cleaned the ole crusty plugs, reinstalled them, and ran them another 40k miles. See post #1 and #19 here...
  21. donjetman

    Purchased a 2007 Yukon XL, now to make it reliable!

    And check the GM service bulletin out: https://f01.justanswer.com/ebrock63/cec66346-04c1-48e0-98a6-74c35af2c84e_2014+Engine+-+Oil+Consumption,+MIL+ON,+Engine+Runs+Rough.pdf
  22. donjetman

    Purchased a 2007 Yukon XL, now to make it reliable!

    x2 what OR VietVet said and make certain it has the update driverside valve cover GM# 12570427 to minimize oil consumption thru its built in PVC system. Original top (poor design) and updated bottom.
  23. donjetman

    Is This Camshaft Reusable? Or Too Pitted?

    I always have. aluminum heads, steel plugs. Dis-similar metal thing for me.
  24. donjetman

    Transfer Case Vibration video - BW4485

    Here's an interesting video about noise/vibration coming from awd transfer case like what's in my 07 Denali.
  25. donjetman

    Is This Camshaft Reusable? Or Too Pitted?

    I have successfully used both of the following o-rings in my 07 6.2L Denali stock pump and pickup tube. Mahle# B32790 (installed 6/24) and/or Felpro# 72401 (installed 12/18)

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