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  1. #1

    Default lotsa miles question

    My burb has about 172k miles on it and I am planning on doing a longish road trip with my family this summer, about 2k miles. It rides great, starts instantly after turning over once. My big question is, does anyone know of any parts that tend to go out on these burbs when they get to this mileage? I know the transmissions aren't the strongest, but this burb has not seen much towing. I would hate to be stranded with an angry wife and 4 grouchy little kids.

    I have a 1996 suburban k1500. 5.3, 4l60e. As far as I know, there has not been any major work done on the engine or transmission. Extras include a throttle body spacer, cold air intake (air raid), corvette shift solenoid, a dvd system with an extra amp, dual cat back flowmaster exhaust.

    Thoughts?
    1996 Chevy Suburban 4x4 5.7L 4l60e - 158k+mi and running strong
    Air Raid Cold Air intake
    Flowmaster dual exhaust
    TBI spacer

  2. #2

    Default

    If I were taking my wife and kids on a long trip like that I would do multiple things first. They are all maintenance items, but I would make sure that they were all done before I left. here is my list:
    Tune up
    -plugs, wires, distributor and rotor
    -serpentine belt, while it is off check the pulleys, spin them by hand, if they feel crunchy or make noise change them
    -front and rear diff fluid changes
    -t-case fluid change
    -Check u-joints for play or noise.
    -change the power steering fluid
    -check the battery, over 5 years old it might need replaced.
    -coolant flush
    -Pressure test the cooling system, correct any leaks before leaving
    -Check coolant hoses for hardness, dry rot
    -oil change and filter
    -get an alignment, no point in dragging a tire sideways across the pavement for 2,000 miles
    -Clean the Throttle body with CRC throttle body cleaner.

    Doing these things, especially the fluid changes can prevent a breakdown due to improper lubrication. Assuming that you will be driving many hours at a time you want to make sure that the fluids are capable of handling the heat generated. Generally, steering components don't just break. When you get it aligned the shop should bring any wear issues to your attention. Nothing you do will ensure a successful breakdown free trip, but taking parts like your belt and pulleys out of the equation sure helps you reach that goal. I would still carry a tool kit with me. It could come in handy if the alternator or something else goes out on your trip.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

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  4. #3

    Default

    Quote Originally Posted by Pikey View Post
    If I were taking my wife and kids on a long trip like that I would do multiple things first. They are all maintenance items, but I would make sure that they were all done before I left. here is my list:
    Tune up
    -plugs, wires, distributor and rotor
    -serpentine belt, while it is off check the pulleys, spin them by hand, if they feel crunchy or make noise change them
    -front and rear diff fluid changes
    -t-case fluid change
    -Check u-joints for play or noise.
    -change the power steering fluid
    -check the battery, over 5 years old it might need replaced.
    -coolant flush
    -Pressure test the cooling system, correct any leaks before leaving
    -Check coolant hoses for hardness, dry rot
    -oil change and filter
    -get an alignment, no point in dragging a tire sideways across the pavement for 2,000 miles
    -Clean the Throttle body with CRC throttle body cleaner.

    Doing these things, especially the fluid changes can prevent a breakdown due to improper lubrication. Assuming that you will be driving many hours at a time you want to make sure that the fluids are capable of handling the heat generated. Generally, steering components don't just break. When you get it aligned the shop should bring any wear issues to your attention. Nothing you do will ensure a successful breakdown free trip, but taking parts like your belt and pulleys out of the equation sure helps you reach that goal. I would still carry a tool kit with me. It could come in handy if the alternator or something else goes out on your trip.
    Thanks for the ideas. I will get right on it. I just have funny/bad memories of my dad taking his 69 vette from Sacramento to Chicago and going through 2 water pumps before he arrived!

  5. #4
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    Default

    They is a thread related to the 5.7L engines and the common problems you can encounter. Take a look at it for issues of which you need to be aware. I agree with the recommendations received so far except for replacing the wires. Check the wires and if they are in good condition, I would not change them unless you have reason to believe there is a problem. I am still running the factory wires - they are still good. Try and find a set of the factory wires - I have only seen them sold individually. The cynic will say that is so they make more money. I believe the reason is you should rarely have to replace on.

    I just hit 269,000 on my 98 Burb. I would drive it any where without a second thought. I also use genuine GM parts for the most repairs. They are available on-line and worth the difference in my opinion.

    Good luck and hope your summer trip goes smoothly.
    86 911 Porsche Carrera
    98 K1500 Suburban LT
    2012 Nissan Leaf

    ​General Motors.
    Because life is too short to drive a Ford

  6. #5

    Default

    Pikey has a great list. Under tune up I'd add:
    O2 sensors (primary) if they haven't been changed in a while
    Clean MAF (mass air flow sensor) with electrical cleaning spray
    Wash and WAX before heading out (I like the Nufinish paste)
    I did that before getting on the road with our 99 Suburban last fall (210K miles) and we got 19 miles to the gallon loaded with 5 people and gear. And yes, waxing your vehicle does have a measurable impact on fuel economy.
    Current Rides: |99 Chevy Suburban- the family truckster |93 Lincoln Town Car- 250K miles & still churning -now a fan of the Panther platform |95 BMW 325is coupe- Wheeee!
    Former GM cars: |78 Suburban 454 |71 Buick Electra 225 (deuce & a quarter) |75 Monte Carlo- 400SB- heaviest doors GM every made |70 Impala coupe- my 1st car

  7. #6

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    19 mpg! The best I ever got was 15.5. Thanks for the good tips.

  8. #7
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    My 99 has 285 mud tires on it and I have pulled 18mpg, these vortec 5.7 don't get the mpg that the previous TBI 350 (we pulled 22mpg in our 1992 on a trip to TX in August) got but you should he getting a little better then 15.5. You can test your wires with a meter, you should have 1 ohm of resistance per foot of spark plug wire (if I remember correctly) you can also check youtube vids for testing them. If you haven't ever changed rear end fluid I would get it done too
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
    285/75/16
    ___________________________
    Jason

  9. #8

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    I agree with the rear diff maintenance if it's been awhile. On the flip side, my wife fondly remembers a road trip from Denver to Texas then along the coast (ish) all the way to Miami Florida, in a 'burb of that generation. she remembers no problems and 6 people + gear. She can do it, just keep swimming...
    2007 Silverado 1500 NNBS - Work truck and daily driver
    2002 Malibu - The wife's car, for now. I smell a Suburban in my future
    1976 Stingray - NOW OVER 100,000 MILES!

  10. #9

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    Quote Originally Posted by vncj96 View Post
    My 99 has 285 mud tires on it and I have pulled 18mpg, these vortec 5.7 don't get the mpg that the previous TBI 350 (we pulled 22mpg in our 1992 on a trip to TX in August) got but you should he getting a little better then 15.5. You can test your wires with a meter, you should have 1 ohm of resistance per foot of spark plug wire (if I remember correctly) you can also check youtube vids for testing them. If you haven't ever changed rear end fluid I would get it done too
    I just noticed that you have a tuner on your suburban. How do you have it tuned? I was wondering if maybe having a custom tune may be why you get better MPG.

  11. #10
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    nope, the tuner didn't do a whole lot other then help with upper rpm/passing power, if I got anything it was maybe .5-1 mpg better but otherwise the difference wasn't noticed on a consistent basis. My tuner is very basic just hypertech and answer a few questions, I mainly got it to change the tire size and to read codes.

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