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  1. #1
    Hello, my name is: KNOWN Gunner's Avatar
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    Default Need some work on my 2003 Suburban

    Anyone have a mechanic they trust that could take a second look at my suburban and give me a quote. It needs some work I?ll attach screen shots of the work Service street recommended. I really don?t have any reason to believe this work doesn?t need to be done. I can see the leaks etc. I just know sometimes the quick lube places will try and nickel and dime you. Just want to make this thing last awhile with the current car market.
    It?s a 2003 2500 suburban 6.0 with 175,000 miles






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  2. #2
    Machine Gunner
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    05 burb owner, 133k miles. General comments.

    Mobil 1 high mileage keeps leaking to a minimum. If you have been running regular oil the gaskets are ?dried? out. Running high mileage stuff will tighten things up. My car at 90k started leaking like a sive. High mileage made it acceptable to the point where I am leaving those gaskets alone.
    I did the whole front end a while ago. The pitman arm and the joints will get you much tighter. Pain in the arse work and changing the arm/joint on the steering box is a special hell. The upper A arms are cheap enough to replace as a unit. The lower A arm joint is cheaper to do the joint. Replacing upper A arms may require cutting the alignment bolts - tedious but doable - maybe why they are recommending just the joints.

    Haven?t touched the cooling. But hoses pumps and such are next.

    PM me if you want to talk more.

  3. #3
    Grand Master Know It All 3beansalad's Avatar
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    Based upon the quoted cost for an air filter I would think you can do a lot better.

    If you are handy at all with tools, and have the time, you can knock most of that work out very easily. Of course space can also be an issue.
    David - CS, CO feedback

    It's a measure of the civility in this country that no ones seems to fear constantly pissing off the people who own lots of guns.

  4. #4
    Machine Gunner
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    Forgot to address the cost. Parts do seem high but it?s 2022.

    Transfer case fluid needs to be the blue Smurf per Chevy but takes only one quart. Call a dealer and see what they charge for it. Will give u a good factor.

  5. #5
    Zombie Slayer
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    Sounds like it overheated and cooked the gaskets. I'd do a compression test on all 8 cylinders. If it fails the compression test, it needs another engine.
    Per Ardua ad Astra

  6. #6
    Self Conscious About His "LOAD" 00tec's Avatar
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    Or it's just a GM and leaks oil.
    Those procedures aren't that difficult on that engine. Hardest part is if the exhaust has to come down to fix the pan gasket, can't recall off the top of my head. Cooler lines likely just need seals if they're leaking at all.
    You just happened to find a shop that wants to take you for all of your money

  7. #7
    Grand Master Know It All SouthPaw's Avatar
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    Quote Originally Posted by BushMasterBoy View Post
    Sounds like it overheated and cooked the gaskets. I'd do a compression test on all 8 cylinders. If it fails the compression test, it needs another engine.
    Ummmm, what? A few leaks constitutes a compression test? Lol.

    What they quoted you is common on the 4.8/5.3/6.0 LS series engines. Literally all those parts, especially at that mileage will start to seep. If you aren?t seeing drops in your driveway, I wouldn?t worry about it. In order to get a true leak diag, you?ll need to degrease the entire engine, steam clean it and recheck.

    The steering components on the other hand are likely due given the mileage. Don?t piece it together, just get it all done at once. Upper/lower BJ?s, inner/outer tie rods, idler/pitman arm, possibly shocks and it will drive like a new truck. You can also have them tighten the steering gear a few notches to really make the difference.
    "But when it's time to fight, you fight like you are the third monkey on the ramp to Noah's Ark; and brother, it's startin' to rain."

  8. #8
    BIG PaPa ray1970's Avatar
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    Quote Originally Posted by SouthPaw View Post
    Ummmm, what? A few leaks constitutes a compression test? Lol.
    Well, theoretically, worn cylinders and/or rings can cause excessive crankcase pressure which could force oil out so it isn?t a totally irrational recommendation.

    I doubt that?s an issue in the OPs vehicle though.

  9. #9
    Self Conscious About His "LOAD" 00tec's Avatar
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    Yeah, most LS engines that I have encountered over 10yrs old or so develop some sort of oil leak. It is what it is (how many people did that irritate), but they're typically easy fixes. It's honestly just a pan and/or valve cover leak that this "mechanic" just wanted to throw the book at since it's been blowing around for a while.

    [Sarc]Cooler lines wet? They must be leaking, replace 'em[/sarc]

    And that's not me being anti GM. It's what I've seen. Every manufacturer/engine has their own problems.
    Last edited by 00tec; 03-25-2022 at 23:06.

  10. #10
    Grand Master Know It All Hummer's Avatar
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    I don't know anything about that engine but I like Southpaw's suggestion to give the engine etc. a thorough cleaning so you can see what's really going on. A clear look at any leaks and a fresh diagnosis might make it more affordable for an older truck. We keep older vehicles to save and make money, but first they have to be reliable. Same with the mechanics you rely on.

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