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  1. SnowDrifter

    10 psi when warm

    Confirming here: You get 20psi hot at the pump. And 6-8psi at the sending unit? Both read by mechanical gauges?
  2. SnowDrifter

    Rattle/Squeak noise coming from Engine

    Take the belts off, start the engine, give it a rev, and shut it down. Don't run it for more than about 10 seconds like this - you won't be spinning your water pump. But that'll tell you if it's belt related or not.
  3. SnowDrifter

    No More EGR Block Off Plates?

    https://www.speedwaymotors.com/LS-EGR-Intake-Plug,103753.html?sku=91680915 https://jcarpart.com/products/ls-silverado-4-8l-5-3l-6-0l-egr-delete-plug-intake-exhaust-block-off-plate-generic?currency=USD&variant=42646032384247...
  4. SnowDrifter

    Gear ratio to hit 20 mpg or close HWY 01 Yukon XL

    No one's said to lower it and toss heads/exhaust on it hehe
  5. SnowDrifter

    10 psi when warm

    Does the pressure change with RPM? Could you pose some correlative numbers and pressures? Don't rev too high with that pressure please
  6. SnowDrifter

    Death Wobble Diagnosis Help

    It's adjustable via the concentric bolts on the upper control arm. But can't draw any conclusions without alignment specs
  7. SnowDrifter

    Death Wobble Diagnosis Help

    Death wobble on IFS... HMMMMMM It's most commonly seen on a solid front axle vehicles due to the interaction between the drag link (steering) and panhard (secures axle to frame). Seeing this on a truck with IFS.... Something is very, very wrong. Things to check: - Post alignment specs. I...
  8. SnowDrifter

    On this Forum

    Keep up on *all* your fluids. They don't do well with degraded stuff. Like our rigs, in many ways. They'll poop out water pumps and tstats if the coolant goes bad Turbos will leak if you run your OCIs too long Run some fuel system cleaner through it periodically. These like to build up a fair...
  9. SnowDrifter

    Transmission Cooler Recommendations

    I think that might be referencing bleeding air out of it Can always aim a thermal camera at the thing and validate the top tubes are filled
  10. SnowDrifter

    Transmission Cooler Recommendations

    Installed mine on the bottom The orientation is new to me. Do you have a link to something I can read about?
  11. SnowDrifter

    Transmission Cooler Recommendations

    Trucool 40k. Keeps my trans temps under 150 even in triple digit weather The folks over at PT have a nice install kit that includes brackets and a compression fitting to relocate the line. It's a ~15 minute install. Just bring a pipe cutter...
  12. SnowDrifter

    '03 Yukon loud at ignition - poss. causes?

    If you could nab a video and chuck it on youtube or something, that would be super helpful :)
  13. SnowDrifter

    02 5.3- intermittent sudden jolts and loss of power at high speeds

    Oh I know :) That was the vid I got after I got the problem to manifest predictably. First time it happened, I was on the freeway going ~70. Just a random hiccup for a fraction of a second. And FWIW, torque converter doesn't fully lock up until like 58 ish. Whenever it can go full-lock at...
  14. SnowDrifter

    02 5.3- intermittent sudden jolts and loss of power at high speeds

    Yeah when mine first started, I thought it was the torque converter. Only happened for a split second. Felt like it was randomly locked and unlocked. Got worse as time went on and I was able to properly diagnose it
  15. SnowDrifter

    02 5.3- intermittent sudden jolts and loss of power at high speeds

    Can't comment on if this is your issue or not. And might be difficult to test for given how intermittent the issue is.... But I had similar when my fuel pump failed. When the pump got warm, and presumably the fuel as well, output pressure would drop and it couldn't keep up with fuel demand...
  16. SnowDrifter

    New TYF Moderator

    Congrats dude!
  17. SnowDrifter

    About 3500 Miles After Cylinder Head Replacement.

    So lets look through the numbers Sodium and potassium is coolant Silicon is RTV and gaskets Lead / Tin / Copper is bearings The antifreeze percentage is going down over time Coolant + oil like to really stick to things and stick around. So I'd expect that to be persistent for some time. I'd...
  18. SnowDrifter

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

  19. SnowDrifter

    Water leak above passenger sun visor

    If you open your passenger side door, you'll see a torx screw near the bottom of the windshield trim Grab the rubber there, pull it off, and there will be more of them. Remove those, pop the trim piece off, and you'll have access to that area
  20. SnowDrifter

    Rear right heated seat inoperative 2005 Denali

    It's not uncommon for the elements to wear with use and go open-circuit. Go under the seat and pop the plugs out. Ohm out both the elment and the thermistor with a multi meter. . If it looks good, have someone get in and out of the seat a couple times. If it reads short or open circuit, you've...
  21. SnowDrifter

    Horn works intermittently - bad clock spring?

    Well, boys... Looks like it's solved! Not sure if it was cleaning the contacts or tossing a bead of solder on the end of the springy dingus-bit. But either way, fixed it fixed! Fless if you're ever in the Seattle area, I owe ya a drink or 4 for that one Edit: Aug 31st - yep, it's definitely...
  22. SnowDrifter

    What is this bolt I found??

    Too big for any interior trim No witness marks to indicate it was used to secure a seat - seat holes go through the body. You'd see discoloration on the end of the bolt where it was exposed to the elements. Also the wrong bolt type for that. GM uses a zinc galvanized (silver-gray) bolts for...
  23. SnowDrifter

    Water leak above passenger sun visor

    The leaves might be chasing a false indicator. Any hole large enough for that would be large enough to stick your finger in - would be obvious. Could be from having the sunroof open or anything from a previous owner. When you say you flex sealed everything, what is everything? As far as...
  24. SnowDrifter

    Anyone with a Champion radiator and using Dexcool?

    New green or old green? IAT or OAT? Cause there's a biggggg difference I can't imagine why a newer PHOAT or even SIAT formulation wouldn't work. I'm also astounded that champion would try to classify coolant as 'ethylene glycol' which literally every single f*king automotive coolant on the...
  25. SnowDrifter

    Horn works intermittently - bad clock spring?

    Yep, horns are good. No corrosion on plugs or wires. Can short pins in the fuse box and they go. That ground is good too. I actually re-did that one last year evaluating an unrelated concern. Yeah I have access to that too. Just no tech 2. See if I can skirt by without it again. Keep waiting...

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