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  1. strutaeng

    Front Differential Fluid Looks Milky

    I honestly can't remember how the front diff works? I think it is always turning, even in 2wd. Power is sent to the front diff only when in 4x4, AWD, Autotrac? I'm not sure how hot it would get when driving it in 2wd. Another easy option is to put a little space heater under the axle for an...
  2. strutaeng

    Front Differential Fluid Looks Milky

    I think it's moisture that gets mixed and aerated with the gear oil into a sort of emulsion. Have you driven through high water? Does the truck sit for extended periods of time? I think there should be a vent on the differential. Remove the hose and make sure the end is not plugged. Drain it...
  3. strutaeng

    2010 Yukon XL Transmission/Gearing Questions.

    H O Lee Molee! 3.08 and 35" tires! 70 MPH and your engine is lugging at 1400 RPM, where it is barely after idle and much, MUCH lower in the powerband range: Even with 4.56s, you are cruising at around 2,000 RPM in 6th gear (still too low for passing power; transmission will want to downshift...
  4. strutaeng

    No start no crank 2004 silverado

    To test the ignition switch, try those wire-piercing probes. You'll need to test for voltage when the problem arises after the vehicle is hot. Probably with a test light at the fuse top contacts while a helper tries cranking. I suppose you can also check the wiring from the fuse to the PCM if...
  5. strutaeng

    No start no crank 2004 silverado

    Sounds like it's the ignition switch then? Try checking that. I think that's the one that energizes the starter relay when you turn the key to crank.
  6. strutaeng

    4L60E Input shaft differences

    ANY GMT800 4L60e pickup or full size SUV will work (Yukon, Tahoe, Suburban, Avalanche, H2 Hummer). My 1999 Silverado 4.3 4L60e had the "LS" bellhousing bolt (empty, of course) and the 300 mm input shaft. So I believe GM made ALL the 4L60e the same, regardless of V6 vs V8 on this generation...
  7. strutaeng

    O2 sensors?

    I've had good luck with Denso...
  8. strutaeng

    Linda's 2002 TrailBlazer with 80k miles

    I think the first gen Colorado trucks had that engine (which I believe wasn't all that great?)
  9. strutaeng

    ***Hurry naked pics inside!!***

    Click bait, eh?! Just kidding...Welcome and congratulations! Very nice truck!
  10. strutaeng

    Linda's 2002 TrailBlazer with 80k miles

    The HELL with THAT Canadian moderator! Welcome to the TYF Trailblazer! Those Atlas engines are incredibly durable. My nephew's wife has one and I believe it's got 300k+ now. Original everything! Runs smooth and fuel efficient. Just tires and brakes is what they've done.
  11. strutaeng

    Oil pressure

    That o-ring is specific to the "LS" engine architecture... No such thing on the SBC/BBC engines...
  12. strutaeng

    Oil pressure

    As @West 1 said, that engine is basically "plum wore out" as they say. I had these same exact issues as OP on my 265k 4.3 Vortec on my 99 Silverado...at that time, that was my only ride and didn't have time, money or knowledge to rebuild the engine. I eventually retired the truck and bought my...
  13. strutaeng

    Damaged parts? - waterpump, rotors,b.pads

    Geez... I installed one of those pumps on my 99 Silverado a few months ago. I got it from Rockauto.com as well and the box was in excellent shape (it was packed in another box with those air bubbles inside.) I've ordered numerous rotors and pads as well and I've never received anything damaged...
  14. strutaeng

    Sisters mechanic 2002 Chevy Tahoe

    Yeah, body wise yeah they're all the same.
  15. strutaeng

    ABS communication error

    I have one of those scanners and have used it both scan the brake system and made the ABS pump function, but on my GMT800 trucks. Did you try scanning it under the "enhanced tests"? I think that's where you can see that? There should also be options for scanning the SRS system IIRC? If it's...
  16. strutaeng

    Fuel pump?

    Is that the evap hose that's not allowing you to disconnect it? They sometimes kind freeze on the fitting. Maybe try to rotate it back and forth to release. Make sure you check for power at the fuel pump plug, just to make sure you don't have an electrical issue as was previously mentioned.
  17. strutaeng

    2013 Denali with 6.2 prone to burn oil?

    That's impressive!
  18. strutaeng

    Sisters mechanic 2002 Chevy Tahoe

    Welcome! Sounds like a good truck to import into the Rustbelt, USA. What is the issue? Parasitic drain? I'm not sure if you know this, but the GMT800 trucks are broken into the 99-02 and 03+ years. There are very different on the interior wiring and engine/ECU wiring, although the engines...
  19. strutaeng

    What parts will leak engine oil under pressure?

    Try a borescope to poke behind the engine. One of my co-workers has one of these $120 borescope with a squiggly camera and I've borrowed several times to poke around stuff. I'm planning on buying one for myself soon. The RMS will often have a slow drip, then all of the sudden start leaking like...
  20. strutaeng

    Guess it runs on hopes and dreams

    https://tenor.com/view/wtf-what-the-****-the-****-is-this-wth-gif-17571836
  21. strutaeng

    Engine upgraded

    Injectores araña?!...YIKES!
  22. strutaeng

    Guess it runs on hopes and dreams

    Women!!! Classic... https://trailer-memes.getyarn.io/yarn-clip/aae983ac-4185-4138-bee0-941aa7d82081/gif#3ZjCpZD0.copy ...yet they still compliment us...:rolleyes:
  23. strutaeng

    Headlights Always On

    Nice! Does the dash have to be removed on the GMT900 to replace that sensor? I don't have any experience with that generation. On my 99 Silverado I replaced it a long time ago (maybe around 2009), just had to remove the radio. It was kinda tight, but I think I snapped it in with some needle...
  24. strutaeng

    Headlights Always On

    The ambient light sensor on the dash is probably bad...
  25. strutaeng

    Heater hose longevity question

    I replaced them on my 06 with GM Genuine tee in 2020. The ones on there snapped and almost overheated the engine to the red. They seem to be holding up well, but will probably upgrade the the metal Dorman version at some point in the future.

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