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  1. SnowDrifter

    Oil Viscosity trial and error

    Get a chance to do the 'driveway pcv test' yet? While I think about it... Check the flow rate through your catch can too. If you're feeling brave, pull the hose off the valve cover and blow into it. System should be free flowing with no obstruction. For what it's worth.. I run 0w40 euro spec...
  2. SnowDrifter

    Oil Viscosity trial and error

    3 things I want to you to check Drain the catch can out and start the car Open the valve on the catch can. Do you feel pressure, suction, or neutral? What about if you remove the oil fill cap and place your palm over the opening? Test this with the catch can drain open and closed. You should...
  3. SnowDrifter

    Oil Viscosity trial and error

    Quarter cup over what timeframe?
  4. SnowDrifter

    02 Tahoe P0300 code

    What are your short and long term fuel trims?
  5. SnowDrifter

    Oil Viscosity trial and error

    Goodness that's a lot Sanity check that it's not pouring out anywhere or not mixing with coolant or something? That much oil... See blue smoke from the exhaust / oil smell? What are you pulling from your catch can? How many miles?
  6. SnowDrifter

    External trans filter?

    No complaints. Last time I changed it out, it had a bit of really fine stuff in it. Pretty much performing as expected with a healthy transmission. Whether I'll see any benefit in the long-term? Who knows. But it's cheap and makes me feel better
  7. SnowDrifter

    External trans filter?

    I did! Attached mine on the small crossover line between the cooler and the radiator. Used a magnefine filter
  8. SnowDrifter

    Oil pressure low

    I have the older version, from before the had the '+' nomenclature
  9. SnowDrifter

    Tru-Cool Max 40k Transmission Cooler

    Right on Honestly I'm not sweating about those temps. Sig needs to be updated. I'm just shy of 185k with the original trans. Just kind of a cheeky jab since I've seen them go out around this time. Actually iirc don't they like to conk around 160ish?
  10. SnowDrifter

    Tru-Cool Max 40k Transmission Cooler

    Out of curiosity, what's your plumbing order for the cooler + radiator pass through, and what sort of temps are you seeing? Mine settles in around 100f on cold days, order is cooler, then radiator, then back to transmission
  11. SnowDrifter

    What engine oil?

    So, that one *was* true. But context of the time. PAO base stocks cause seals to shrink a touch - so it causes leaks. We pretty quickly figured out that if we mix in some ester based oil, it 'evens out.' But that was in the 70s. It literally hasn't been an issue in the last 40 years. Much like...
  12. SnowDrifter

    What engine oil?

    Echoing this Putting thick 20w50 oils in this is..... Ridiculous. There is literally no data to support running oil that thick in this application. What do you expect a high mileage additive to do? Where are you getting this information? Can you back this up in any way? I don't mean to sound...
  13. SnowDrifter

    Oil pressure low

    I don't thinnnnkkkkkk it'll work, but I'm interested either way!
  14. SnowDrifter

    Oil pressure low

    Works for 05/06
  15. SnowDrifter

    Re-circulation Blend Door - where/how/ehh?

    That's the same code I got As far as the fix? Honestly, need to diagnose it before anything else
  16. SnowDrifter

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

    I missed the most important number on my odometer and I'm upset I looked down... And forgot to take a picture of 180085. I let the BOOBS slip through my fingers, man :( Also figured out I'm terrible at eyeballing weight. Was hauling a bunch of firewood. Uhh..... The 'hoe really doesn't much...
  17. SnowDrifter

    What do I do with my 2003 Z71 Suburban?

    Knock insurance down to a reasonable minimum for the value of vehicles in your area Or, entertain the idea of per-day as-needed insurance. I know those exist, though I have neither experience nor input on providers For 3k.... The thing's worth more in utility than anything else. Burban has a...
  18. SnowDrifter

    Re-circulation Blend Door - where/how/ehh?

    I just walked over to the back shop and pulled one of the techs aside. Did it on his lunch break. Slipped him 60 bucks for his time because the service writer / booking area wanted like $350 for it.
  19. SnowDrifter

    Truck wiggles

    Vet nailed the checks If all of those come back good, couple more bits to check: - Rear bushings. Those are pretty straight forward to look at. For the 4 control arms: Shove a pry bar between the mount and the control arm and give it some grunt. See if it moves. It shouldn't. - For the track...
  20. SnowDrifter

    Back Up - Reverse Lights...

    I just shoved these in my housing. Bright enough to see in full dark https://www.vleds.com/shop-application/reverse-back-up/3156-3157-led/3156-6-**-2.html
  21. SnowDrifter

    Pan drop - defeated tonight

    Confirming it's hanging up on the shifter bracket? I've always just reached up there with a ratchet and disconnected the thing altogether. It's 3 torx bolts iirc. Don't remember the size. It's blind, but easy to do by feel. Shouldn't need to do much else. I've never had to fuss w/ the exhaust...
  22. SnowDrifter

    2003 tahoe no crank no start

    Lets isolate and chop the system in half. Grab a multi meter, and lets look at the starter relay. 1. See if the signal gets power when you turn the key. I don't remember if it's switched power, or switched ground. Will be easy to check. Switched power = 0v on pin 86, energizes when start. Pin...
  23. SnowDrifter

    Heater issue

    Oh yeah that was also me But would need to verify codes / go down the diagnostic tree to validate you need it I ended up having the local dealer do it
  24. SnowDrifter

    Heater issue

    It's super easy Pull the HVAC fuse from the underhood fuse box Take a whiz Put it back in Start the car and like... Don't touch it for a minute or two
  25. SnowDrifter

    Rear differential and Fel-Pro gasket

    I use lubelocker on mine Buffed the surfaces down flat/smooth, lube with a little differential fluid, good to go

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