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  1. Fless

    Dear Mr Fless

    Announcement and instructions in this thread: https://www.tahoeyukonforum.com/threads/new-badges-for-military-service-members-leo-firefighters-and-emt.158367/
  2. Fless

    Instrument cluster lights turn off when map light is turned on

    Has a comprehensive voltage drop test been done? Great way to verify the main grounds and power feeds.
  3. Fless

    Dear Mr Fless

    You feelin' any better now?
  4. Fless

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

    Drove it to do some errands, and to top off the fuel with 20.4 gallons of premium (91 octane here). It'll get emissions done in a month or so and we'll see how it does if they do the treadmill test like they have the past two times, although those were on E85 and it passed with flying colors...
  5. Fless

    2011 tahoe driver front door replaced, and now an SRS driver door service air bag code

    SRS circuits are very reliant on tight ohm tolerances. Splices may impact the ohm value.
  6. Fless

    Gauges flicker and lights dim with window usage

    ^^^ This, as well as bad battery cables and/or connections and grounds. EDIT: do a voltage drop test to evaluate the big cables and connections. Doesn't cost anything but time.
  7. Fless

    What Is The Thread Size of The Trans Cooler Fittings In The Radiator?

    Interesting that those are SAE threads. When I worked at Caterpillar winding hydraulic hose, our (old) line winding machines were a mix of metric and SAE fasteners and parts. One never knew what tool would be needed.
  8. Fless

    Oil viscosity recommendation

    Hard NO.
  9. Fless

    2011 tahoe driver front door replaced, and now an SRS driver door service air bag code

    I haven't seen any specific codes mentioned, or did I miss those?
  10. Fless

    2008 Yukon Denali - $3000 dollars in repairs and I still have P0171 and P069E DTCs.

    All I see in the 4 gifs are blank screens.
  11. Fless

    2013 Tahoe LT - ZW7 premium smooth ride... strut/spring part nos?

    BTW, the RPO code for the Nivomat shocks is G65, on the GMT800 with the ZW7 (Premium Smooth Ride) RPO code.
  12. Fless

    Only 3.4 volts going to starter (SOLVED?)

    Knowledge is power. Do a voltage drop test to confirm:
  13. Fless

    2008 Yukon Denali - $3000 dollars in repairs and I still have P0171 and P069E DTCs.

    The KOEO fuel pressure spec is here, provided I selected the correct vehicle: https://charm.li/GMC/2008/Yukon%20Denali%20AWD%20V8-6.2L/Repair%20and%20Diagnosis/Specifications/Pressure%2C%20Vacuum%20and%20Temperature%20Specifications/Fuel%20Pressure/
  14. Fless

    2013 Tahoe LT - ZW7 premium smooth ride... strut/spring part nos?

    NO, that's bad info for a GMT900. The Nivomat technology isn't used for ZW7 past 2006; it does not apply to the 2013 MY.
  15. Fless

    2013 Tahoe LT - ZW7 premium smooth ride... strut/spring part nos?

    Looking on www.gmpartsgiant.com, the shocks look like they'd be available as P/N 19435684, but it would be best to check with @915_Tahoe first. If you use that site, enter with your VIN for the best accuracy. I do not recommend ordering from that site, due to the experiences that other members...
  16. Fless

    2013 Tahoe LT - ZW7 premium smooth ride... strut/spring part nos?

    Post the last 8 digits of your VIN and tag @915_Tahoe -- like I did here -- for current GM part numbers. He can tell if OE is still available, and provide part numbers for your search.
  17. Fless

    Help me figure out what to do with this boat anchor

    Prior Owner.
  18. Fless

    2021 Tahoe won’t start

    Define "won't start." Does the engine crank (turn over) but not actually fire? Or is this a no-crank? P0615 indicates a Starter Relay Control Circuit problem. Either a short to ground or high resistance or an open in the circuit. What tests were done to verify that the relay was good, and...
  19. Fless

    Question on 6.2L Engine tests

    Do you have a source for this info?
  20. Fless

    07 Tahoe LTZ gas in the oil

    I don't think the ethanol content and long-term fuel trims get reset with a battery disconnect. Short-term trims get reset on an ignition cycle. If ethanol content was to reset, think about how crappy the engine could run if it had to figure that out every time the battery was disconnected...
  21. Fless

    Automatic Headlamp Sensor Styles???

    What year is yours vs the year of the dash you pulled?
  22. Fless

    2008 Yukon Denali - New Fuel Pump issues (P069E and P0191 codes)

    See duplicate thread: https://www.tahoeyukonforum.com/threads/2008-yukon-denali-ongoing-saga-of-the-unrepairable-undiagonsable-p0171-and-p069e-error-codes.158351/post-2044479
  23. Fless

    2008 Yukon Denali - $3000 dollars in repairs and I still have P0171 and P069E DTCs.

    Why open another thread on this issue? You already have one going: https://www.tahoeyukonforum.com/threads/2008-yukon-denali-new-fuel-pump-issues-p069e-and-p0191-codes.158222/post-2041775 P0171 indicates lean condition on Bank 1...
  24. Fless

    2003 GMC Yukon Denali Gauge lights not working...

    So did they replace the backlight bulbs with incandescent, or with LEDs?
  25. Fless

    Battery not charging fully

    Lead acid or AGM battery?

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