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  1. Fless

    Want an OBD scanner, recommendations?

    It's for Android and is on Google Play. The Pro version (highly recommended) costs about $5 and the author is Ian Hawkins. After you put it on your phone, add the extended PIDs that are available.
  2. Fless

    2020 6.2L: misfires, lifter issues and engine replacement

    If it helps, the 2020 owner's manual states to change the filter when changing the oil (at least once a year).
  3. Fless

    Help me decide what to do??

    Ha! If that only worked... :p
  4. Fless

    Is It Worth Replacing High-Mileage Injectors?

    Upstream O2 voltage should be between 0.1 and 0.9 volts. Is that the PID that you're describing?
  5. Fless

    Final call!!

    Here's the background thread. I'll let y'all jump back and forth for exercise. https://www.tahoeyukonforum.com/threads/help-me-decide-what-to-do.151497/
  6. Fless

    Help me decide what to do??

    Not sure why you wouldn't keep this in one thread. See this one for the "decision": https://www.tahoeyukonforum.com/threads/final-call.151504/
  7. Fless

    2016 LTZ with 5.3 coolant temp regulator

    Get a scanner on it and compare the ECT reading(s) -- there may be more than one engine coolant temp reading -- to see if the sensors are reporting properly. If the main ECT sensor is aftermarket you may want to try an OE one, and carefully inspect the connector and the pigtail for damage and...
  8. Fless

    Help me decide what to do??

    @Mudsport96 suggested a method to test the ratio of the front diff, but that can also be used in 2wd for the rear diff: https://www.tahoeyukonforum.com/threads/front-diff-or-transfer-case.130861/post-1631842
  9. Fless

    Wiring issue, unusual situation

    When you replaced the crank sensor, was a CASE relearn done with a scanner? It's recommended and quick, if successful; not always necessary but it can prevent some potential issues. Try that relearn, and consider reinstalling the old crank sensor (and do the relearn). Hopefully you have an...
  10. Fless

    05' Yukon Denali open sunroof & starting problems

    I don't know about the sunroof issue, other than if you can't close it you may want to temporarily tape some heavy plastic over it. How is water getting into the engine air filter, isn't that a sealed unit? Also, can you describe your "no start" symptoms differently? Does the engine crank...
  11. Fless

    2020 6.2L: misfires, lifter issues and engine replacement

    What oil filters are you using that last 20k miles?
  12. Fless

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    If you look up the arms for a 2000-2002 Tahoe, Yukon, Suburban they should be the right ones. Rock Auto shows only the right (passenger) one with a GM # 15761496. The driver's side has two integrated washer squirters and the passenger side has only one. They may state "without splines" and...
  13. Fless

    Subs in jack compartment

    That member hasn't been on here since Dec 2022.
  14. Fless

    99 Tahoe 5.7 vortex P0300 code HELP

    The MAF is over-reporting; at hot idle it should be closer to the engine displacement, likely no more than 6 g/s or so. Clean it or change it to a known good one to see how much the STFTs change. But I think there's more going on here. When it's hot and you raise the idle to 1500 or 2000 rpm...
  15. Fless

    99 Tahoe 5.7 vortex P0300 code HELP

    The short term trims show that it's dumping fuel into both banks (Bank 1 more than Bank 2, but both excessive) so the O2 sensors are telling the engine computer that it's running lean and to give it more gas. Is the intake intact and sealed from the engine air filter all the way to the throttle...
  16. Fless

    Help-2024 Tahoe Stalled

    Talk to your dealer about the specific diagnosis. There are different causes. Note that the comments were about the fuel pump control module, not the pump.
  17. Fless

    Bank 1 and 2 lean codes

    The OE air intake is already a CAI, so there's nothing to be gained by changing it to aftermarket, other than more noise under the hood and a potential dirty MAF. In addition to the other suggestions of a vacuum leak or fuel pressure issue, I'd add that perhaps unmetered air is getting in after...
  18. Fless

    Drive with lift glass open?

    I picked up some wood a few weeks ago in my '04 and left the glass up with the wood sticking out. Short trip, just a couple of miles, at in-town speeds. I have newer struts on the glass and it stayed up fine. Not many bumps along the way, though. YMMV
  19. Fless

    Drive with lift glass open?

    What year? Agree with @Doubeleive about tying it down to some padding. I also work a bungee cord in there to hold it tight but that also allows a bit of movement up and down for flexibility.
  20. Fless

    Illumination Wires in Window Switches

    That member hasn't been on here in a year and a half, so don't expect an answer from him.
  21. Fless

    P0446 after purge valve replaced

    P0446 is an indicator of a problem in the VENT valve, which is under the body in the rear of the truck. Your hard starting could have been caused by the PURGE valve on the engine, so that's worth the new part. Cheap and easy, anyway. The vent valve in the rear can malfunction; normally it's...
  22. Fless

    Hello fro GA

    Welcome from Colorful Colorado!
  23. Fless

    Lurking no longer, now a PPV owner

    Welcome to the forum from Colorado!
  24. Fless

    Slight miss at idle, poor MPG, sooty exhaust pipe, No codes. 250K

    The other thing to check is individual cylinder misfires with a scanner that can show them by cylinder. Might give us a clue. As @j91z28d1 noted, if it's a Flex Fuel system then check the alcohol percentage with a scanner, to see if it matches or is close to the fuel you're using.

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