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  1. dross99_si

    Decisions, Decisions...

    Prices of each battery?
  2. dross99_si

    Noise after differential fluid change?

    Doing that on jack stands makes me nervous hahaha
  3. dross99_si

    Noise after differential fluid change?

    I seriously don't feel that its the transfer case. Last time I changed the fluid on that was 2016 (20K miles ago). Can't tell for 100% sure if it's coming from front or rear. I want to say it's the front though.
  4. dross99_si

    Noise after differential fluid change?

    Just dust. Nothing crazy. So strange that the noise occurs only when cold and virtually disappears after a few miles of driving. Like I said earlier it sounds similar to a manual trans driven in reverse.
  5. dross99_si

    Noise after differential fluid change?

    Thanks
  6. dross99_si

    Noise after differential fluid change?

    Thank you
  7. dross99_si

    Noise after differential fluid change?

    There’s definitely something going on. This noise is new and started after changing the diff fluid. One thing after another man..
  8. dross99_si

    Noise after differential fluid change?

    They’re definitely full. I’ll get some 80-90 GL5 and see if that fixes it. Hopefully the 75-90 synthetic didn’t do any long term damage
  9. dross99_si

    Noise after differential fluid change?

    Hey guys we have a 2007 LT 4WD and after I changed the front and rear differential fluid the Tahoe has a whine only when cold. After it's driven for a few miles it goes away. Noise is speed dependent and almost sounds like when you drive a manual trans in reverse. Like that high pitched siren...
  10. dross99_si

    Transfer case whining?

    Ok so let's start over on this. Forget all about the transfer case and 4WD aspect that I previously mentioned. The whining/siren noise is still occurring at speeds greater than 20mph. Only makes the noise when cold. After the vehicle is driven for a while the noise goes away. Perhaps it is a u...
  11. dross99_si

    Transfer case whining?

    So this whining siren noise was gone for a while, but does come back from time to time only if it's cold outside and once the vehicle has been driven for a while and everything is warmed up it goes away. Could it be the tires perhaps?
  12. dross99_si

    Starting issue

    Update: It's been 2 weeks since installing the new (Genuine GM) purge solenoid. No check engine light and not one starting issue. I guess the P0442 and starting trouble we were having WAS due to a bad purge... A big thanks to James aka Swathdiver for helping me get this figured out!
  13. dross99_si

    2011 Tahoe starting issues

    No check engine light and not one starting issue since installing the new Genuine GM purge valve :) Thanks James!
  14. dross99_si

    Location for Access Panel for Fuel Pump 2007 Yukon XL

    Thanks for sharing. Do you have any pics of the during and after pump install?
  15. dross99_si

    Starting issue

    Update: Yesterday swathdiver (James) was nice enough to come over with the Tech 2 to see if we could figure out the P0442 and check fuel pressure to diagnose the starting issue. Unfortunately the fuel system monitoring was not an option listed for my particular vehicle. Not sure if the 2007s...
  16. dross99_si

    Has anyone installed a permanent fuel pressure gauge?

    That's a great idea
  17. dross99_si

    Has anyone installed a permanent fuel pressure gauge?

    Thanks for the link
  18. dross99_si

    Has anyone installed a permanent fuel pressure gauge?

    Like one of these? It would be helpful in diagnosing this hot soak starting issue I'm having. Nice to install a gauge on the rail that can stay there and just pop the hood to check it each time we start the vehicle to see what's happening when we get the intermittent long crank...
  19. dross99_si

    Starting issue

    Have any of you guys installed a permanent pressure gauge on the rail?
  20. dross99_si

    Fuel Pump Trims

    Slow crank as in the speed the starter is turning? Or slow crank as in the starter is turning at normal speed but the engine takes a while to fire up?
  21. dross99_si

    Starting issue

    So can all this fuel pressure testing simply be done with something like the Tech-2, or do I HAVE to have a pressure gauge connected to the rail?
  22. dross99_si

    Starting issue

    Thanks for your suggestions. So is there a definitive way to distinguish between a failing pump vs faulty injectors just by checking and/or monitoring fuel pressure during different conditions.
  23. dross99_si

    Starting issue

    No we never checked fuel pressure. We were trying to figure out the darn P0442.
  24. dross99_si

    Starting issue

    It's more like the cranks for 5-6 seconds and doesn't start, but then cranks and always starts on the second try, but with a sputter and very brief rough idle that normalizes. Never happens on a cold start.
  25. dross99_si

    Starting issue

    Is this a huge bear of a job in the garage on jack stands? I would most likely be attempting this solo. Or better to have someone with a lift tackle it?

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