Search results

  1. M

    Diagnostic and Programming tool research - anyone use the Mongoose cable from drewtech / opusvis?

    No, all the aftermarket diag tools from the aftermarket, are essentially 'copying' the implementation of the factory diag, which mainly only interact with the computers in the car to alter 'features' which the car computer is willing to change. Most of the accepted changes are only temporary...
  2. M

    Diagnostic and Programming tool research - anyone use the Mongoose cable from drewtech / opusvis?

    Autel is certainly VERY confusing in terms of model selection, and their naming conventions are horrid. The short answer is all of the bidirectional scanners that say 28+ or higher functions provide essentially the same coverage for a 6+ year old vehicle. For some of the latest features in the...
  3. M

    Engine additive: ATS chemical.

    I used the ATS 505 on my son's 2012 TSX which was consuming oil at a quart every 1K miles at only 80K miles on the engine, with fresh Mobil1. Honda supposedly improved the oil ring tension in 2011, but the manual transmission cars still have issues. I think the recommendation was 30 minutes...
  4. M

    Installing "2021 PPV" style 6-Piston Brembo Front Brakes on a 2007 Yukon Denali

    Thanks for the heads up on the brake line stretch, I didn't think to check that. My 2011 Yukon Denali factory 20" seven spokes (similar to those esky wheels) had at least 1/16" clearance on the test fit. Unfortunately, I didn't account for spacing the caliper to center on the rotor, which of...
  5. M

    214K 6L80 rebuild before TCC failure

    The only real downside to locking in the lower gears is wear on the TCC. Driveability is possibly an issue, because if you are locking ******* the upper gears, it could be more abrupt in the lower gears. Yes, negative slip is engine braking. The only effective way to get a solid lock on...
  6. M

    214K 6L80 rebuild before TCC failure

    Apply ramp is a pressure adder, meaning that it will add the number to the desired TCC pressure. Making changes to the right of '0' slip increases the pressure to the clutch when the TCC has more slip than desired, which should reduce the slip. With HPtuners you can change the units that you...
  7. M

    GM 6L80 Transmission Information Thread

    Thanks Nick!! some much needed 6L80/6L90 content for the channel.
  8. M

    214K 6L80 rebuild before TCC failure

    In hindsight, that is probably the understatement of the year. I was thinking all the mechanical improvement, regulation, better pressure, tight tolerances, stronger/straighter friction surfaces would help the computer to compensate less. Because the computer guesses (I mean characterizes...
  9. M

    214K 6L80 rebuild before TCC failure

    Yes, I would say that replacing the converter may not be enough. It does seem that some are honest enough to admit some shudder comeback problems even with new converters (and valve upgrades). Is it poor quality converter clutch material, poor resurfacing, or just reusing bad converter cores...
  10. M

    214K 6L80 rebuild before TCC failure

    Just to reiterate what Nick is saying in layman's terms is that the aftermarket (mainly Sonnax and Transgo) are providing alternates to the common problems both from wear and performance, based largely on common failures seen in the field. I was fortunate to not see any valve wear, but all the...
  11. M

    Oil Filter Efficiency for Cleaner Oil

    Filter media is a science unto itself. Only 100% efficiency first pass means no large particles go through and no ordinary filter can achieve that. The balance is a combination of filter capacity, flow and efficiency. If you are shooting for high capacity and low restriction you may likely...
  12. M

    Oil Filter Efficiency for Cleaner Oil

    To address the multi-pass efficiency of the test: The way the test works, particles are injected at different sizes roughly by weight, such that the smaller particles are represented at an exponential distribution for the smaller sizes. The particles are injected at a steady rate and the test...
  13. M

    Oil Filter Efficiency for Cleaner Oil

    The top Fram filter is definitely a good choice. Supposedly ?? the Ultimate (today) is basically the equivalent of the 'Ultra' used in this test. An important thing to note is that higher efficiency doesn't necessarily mean long lasting oil filter. As shown in the graph here, the Fram Ultra...
  14. M

    2012 Yukon Denali - 6.2 lifter or something else? [Advice/How to Proceed]

    Agree with Dave. If the cam is fine, replacing the AFM lifters should get you about the same lifetime. The advantage being that you have the option to enable/disable AFM. Technically, I think the VLOM does age, particularly the solenoids and the gaskets, so you will probably not get double...
  15. M

    Oil Filter Efficiency for Cleaner Oil

    Another comparison test with Ultra vs K&N vs Mobil1, using real world (heavily) used oil.
  16. M

    Dreaded Lifter Issue

    If you must drive some type of SUV, the Pilot or Highlander are definitely more economical choices. For $30K, you can get approximately: New sedan with good mpg and warranty 2019 Pilot/Highlander with 60K miles and leather 2015/16 Tahoe LS/LT with 80-100K miles. The first two have high odds of...
  17. M

    Dreaded Lifter Issue

    If you would replace it with another similar large SUV, live in a relatively salt free area, the vehicle has been reguarly serviced, and everything else is in good condition (cracked dash is an annoyance and lock actuators can be replaced), then I would strongly consider at least paying to have...
  18. M

    Need front Wheel bearings (4WD) which ones are good?

    Both Summit and rockauto show pictures with the print Made In USA for the Timken SP500301. https://static.summitracing.com/global/images/prod/xlarge/tmk-sp500301_bd_xl.jpg Interestingly in the Q&A section for Summit, they answered this question 2 years ago, but quickly noted it could change at...
  19. M

    How many miles did you get out of your original Transmission?

    214K on my 2011 6l80, when I rebuilt it preemptively. Nothing was wrong and very minor wear on the 3-4-5 frictions, so realistically could have gone another 100K with just a new converter.
  20. M

    Parking pawl replacement 6l80e

  21. M

    Parking pawl replacement 6l80e

    That doesn't mean that the 6L80 doesn't have a parking pawl. The parking pawl is just a device in the transmission to lock the output shaft to the case.
  22. M

    Parking pawl replacement 6l80e

    Fair enough Wes, challenge accepted.
  23. M

    Parking pawl replacement 6l80e

    Just to further clarify, if you have a RWD or AWD vehicle in 'park' on an incline of say 5 degrees, and you jack up the rear end (being one of the either ends in your statement) with a wheeled jack, it is likely going to roll downhill. It is also very dangerous and should not be attempted...
  24. M

    Parking pawl replacement 6l80e

    That is a pretty far out statement. Anyone who jacks up a vehicle without chocking the wheels on an incline or using some other method to restrain the vehicle should not be jacking up vehicles. Anyone who jacks up the drive wheels on a car on an incline expecting transmission park to keep the...
  25. M

    Parking pawl replacement 6l80e

    What??!! Park is just a feature in the transmission to lock the output shaft.

Forum statistics

Threads
125,859
Posts
1,756,323
Members
87,746
Latest member
Grady_Wilson

Latest posts

Top