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  1. J

    Tuner to fix shifting in 2000 Tahoe (auto transmission)

    Thanks @Marky Dissod . This makes a LOT more sense! I appreciate you!
  2. J

    Tuner to fix shifting in 2000 Tahoe (auto transmission)

    Hey @Marky Dissod — this is the original post I asked about getting a tune. I'd love your insights! As an update — I replaced the Fuel Injectors AGAIN (this time with another, Amazon off-brand), and it seems to have resolved the problem! Also, my spark plugs don't seem to be getting fouled...
  3. J

    Which Gear for SC "Foothills"?

    Thank you, again to @Marky Dissod , @Fless , & @Doubeleive ! You took a weight off me! About "tuning" — I've looked into it several times, and I'm interested, but I'm finding the cost way outweigh the (understood) benefit. (non-Mac PC, +Software, +Credits, etc.). FYI — the "lurching" only...
  4. J

    Which Gear for SC "Foothills"?

    Thank you all for replying! Marky — Apologies. TBH, I didn't understand most of what you are saying. :/ Also, I'm not as concerned about gas mileage. I'm mostly concerned about burning out my transmission (again)! Fless — Attached is the info from the glovebox. But, I can't make heads or...
  5. J

    Which Gear for SC "Foothills"?

    Howdy! I've just moved from very flat, Central Florida — to hilly, Greenville area, South Carolina. I had the automatic transmission rebuilt (twice) and upgraded the transmission radiator/cooler. :) I remember my Florida, transmission mechanic saying something about keeping the Tahoe in 3rd...
  6. J

    Spark Plugs keep fouling & P0172 code

    @strutaeng thoughts?
  7. J

    Spark Plugs keep fouling & P0172 code

    Please see above message. Thanks!
  8. J

    Spark Plugs keep fouling & P0172 code

    I finally had a chance to run diagnostics on my Tahoe with my Blue Driver. I took a short, 20 minute trip with a mix of stop-and-go and 50m/hr highway. The short and long trim was mostly in the -10% to +10% range - with the exception of a couple of +/-100% blips. I'd guess these would happen...
  9. J

    Spark Plugs keep fouling & P0172 code

    I totally get not trusting non-OEM injectors! I just couldn't bring myself to pay $800-$1K to replace them. No, the rich condition happened sometime after the new injectors.
  10. J

    Spark Plugs keep fouling & P0172 code

    (replied above)
  11. J

    Spark Plugs keep fouling & P0172 code

    That is a great question. And, honestly I have no idea. Here is the link to the Amazon Injectors: https://www.amazon.com/gp/product/B09QKR1BC7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1&tag=tahoeyukonforum-20 However, I wouldn't recommend them. I had to purchase two sets, as the first set...
  12. J

    Spark Plugs keep fouling & P0172 code

    No oil consumption at all. (yeah!) Also, the oil looks completely normal for the milage - a nice golden brown.
  13. J

    Spark Plugs keep fouling & P0172 code

    The spark plugs & wires were AC Delco. The injectors and coils were aftermarket. As the truck is 24 years old, I didn't want to spend the X10 price for those. However, this could be causing the problem. The diagnostics the master mechanic ran didn't show any issues though. Great question! Thanks.
  14. J

    Spark Plugs keep fouling & P0172 code

    Thank you, Mudsport! Great questions! No codes - except for the P0172 (and rarely the P0172). No "missing" codes, which I find odd. But, the master mechanic I took it to said that the "missing" isn't enough for it to trigger the code. I didn't gap the plugs - they were pre-gapped. However, I...
  15. J

    Spark Plugs keep fouling & P0172 code

    Only some basic condensation on cold morning startups. Never while driving.
  16. J

    Spark Plugs keep fouling & P0172 code

    Brief History: This has been going on for years now. I made a post in 2021 and that helped solve some of the problems I was having! But now I've narrowed down a specific, reoccurring issue: fouling plugs Reoccurring Issue: About twice a month I'll get a P0172 — System Too Rich Bank 1. Rarely...
  17. J

    Tuner to fix shifting in 2000 Tahoe (auto transmission)

    This makes a lot of sense and is very helpful! Thank you!
  18. J

    Tuner to fix shifting in 2000 Tahoe (auto transmission)

    My mechanic recommended I get a "tuner" to fix the weird shifting I'm getting in my 2000 Tahoe. I'm looking for advice on which device, and how to make the settings I need. Issue Details: I had my automatic transmission rebuilt about 6 months ago. It works great 80% of the time. Sometimes it...
  19. J

    New upper radiator hose collapsed ?

    I had this issue as well. I replaced the original cap with a new one from Advanced Auto Parts ($16) and it went away. Later, I cleaned the old cap with a degreaser, soaked it in hot water, and replaced the new cap with the old one to test it out. The upper hose collapsed again while cooling. :/...
  20. J

    WTH is this weird, plastic thimble in Radiator Reservoir Hose?!

    I've had some issues with random overheating in my 2000 Tahoe. You can see the troubleshooting below, but it seems pretty clear, that the coolant is being blocked. I've flushed the radiator multiple time, and I'm still getting rusty, coolant water, with little, tiny brown bits coming out of...
  21. J

    Automatic Transmission - slight surge from 1st to 2nd

    Thanks, Mudsport96. Sorry for the slow response, I assumed I would get an email notification, once someone replied. I'll try and get back under there in the next few weeks. Thanks again!
  22. J

    Automatic Transmission - slight surge from 1st to 2nd

    I was finally able to get under there and feel for it. I wasn't able to push it in at all. It just wouldn't budge by hand. Perhaps I could have use some leverage, but I am assuming just trying to move it by hand was the appropriate test. What does that tell us?
  23. J

    Automatic Transmission - slight surge from 1st to 2nd

    It's a bit hard to tell from this attached pic. (The blacker areas are from the black fan shroud behind it - the fluid makes the thin paper towel kind of transparent. So, it looks better in "real life".) I'd say it's reddish with a hint of brown in real life. It looked darker before I added the...
  24. J

    Automatic Transmission - slight surge from 1st to 2nd

    Hello All, I'll definitely look into all of the items stated above. In the meantime, I found the original invoice for the transmission rebuild... I can't make out most of the chicken scratches, so I attached a couple of images. Any insight you can give on this would be greatly appreciated!!
  25. J

    2000 Tahoe - Idle Issues with A/C vibrations

    Yes, it does have Traction Control.

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