Jump to content

need help? buying a truck 2000-2007

General Moter Boater

Recommended Posts

  • Replies 39
  • Created
  • Last Reply
muddkatt Senior Enthusiast

muddkatt

Posted
Posted

2003-2006 trucks were pretty bulletproof. I've never been a big fan of the 4.8. The 5.3 in those years was a terrific motor.

 

2007+ trucks - I'd avoid 5.3 trucks, as they have AFM, and it's a known problem. I'd also avoid the '07 MY altogether, as it's the first year of a new platform.

 

Let me add to this comment, the 2000-2002 trucks are damn good trucks too.

Nanotech Environmental Enthusiast

Nanotech Environmental

Posted
Posted

Thanks guys for the real good info. so it looks like no 4.8 or duramax for me. As far as GMT 800 AND GMT 900 can someone school me as what changed over in 2007? Was it just cosmetics. Any drivetrain upgrades?

 

Ill be sure to take my time and get an unmolested truck most likely from the good side of town :fingersx:

 

i will skip on the check engine light aswell.

You could buy both the GMT 800 and the GMT 900 in 2007. The 800's were called 'Classics'. These were just a finish of a production run from the older GMT 800 trucks.

Not a lot in common between the 2 trucks except maybe; Engine blocks, some transmissions, axles, a few random bits and pieces.

Chris Senior Enthusiast

Chris

Posted
Posted

You could buy both the GMT 800 and the GMT 900 in 2007. The 800's were called 'Classics'. These were just a finish of a production run from the older GMT 800 trucks.

Not a lot in common between the 2 trucks except maybe; Engine blocks, some transmissions, axles, a few random bits and pieces.

Blocks aren't even interchangeable really. Different engine generations as well. Different locations for major sensors on the engine

bigchevyz71 Enthusiast

bigchevyz71

Posted
Posted

And we have a couple duramaxs and the 2006 is my favorite they are more expensive to repair because it's a diesel which should be expected. But they will pull anything you put behind them.

General Moter Boater Enthusiast

General Moter Boater

Posted
  • Author
Posted

Thanks Guys for that post im still hunting. I've decided on a 5.3, the gmt800 is looking like good to me but we'll see. I'll keep you guys posted. As far as checking the tranny dip stick for a burnt odor, how else can I check the trans before I buy. To me, please correct me if I'm wrong, but the trans seems to be a weak link if not maintained or abused

krly79 Enthusiast

krly79

Posted
Posted

Do not get a 4.8 unless you plan of forced induction with it. 5.3 at least or preferrably a 6.0

 

Sent from my SM-G925V using Tapatalk

Chris Senior Enthusiast

Chris

Posted
Posted

You can't tell from the pic. If the Vin has V it is 4.8, T or Z is a 5.3, N and U are 6.0

Podor Enthusiast

Podor

Posted
Posted

Might get a 05 with 68k from an auction Tuesday. I'll let u know Predicted to be spending 4-6k

If you can get an 05 with that milage in 4x4, or even 2 wheel drive, for that price, snatch it up regardless of the enging as long as the body is in good shape. You could do some fairly simple mods to wake a 4.8l up. It almost sounds to good to be true.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,863
    Total Members
    8,960
    Most Online
    Bulldogger
    Newest Member
    Bulldogger
    Joined

  • Who's Online   3 Members, 1 Anonymous, 728 Guests (See full list)

  • Latest Articles

  • Posts

    • KARNUT
      Gas Prices

      By KARNUT · Posted

      I figured you would know about it.
    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      It added a cost layer to an already limited production supply. True that. 
    • Grumpy Bear
      Gas Prices

      By Grumpy Bear · Posted

      Swap costs and supply/demand balance. When a barrel comes out of the ground the entire range of products are present but not all at the same percentage.    Breakdown of Refined Products The following table summarizes the approximate output from a standard 42-gallon barrel of crude oil: Product Type Gallons per Barrel Percentage of Total Gasoline 20 gallons 45% Diesel Fuel 9 gallons 21% Other Products 13 gallons 31%   Most of that diesel figure is 'straight run' or cut from the barrel. Gasoline 'cut from the barrel runs 0 to 20% at the crude. So in the crude unit there is more diesel the gasoline, usually.  The full refining experience however gives the tabled values. Ego there is half the diesel than gasoline after the 'first crack' That could be an FCC unit, or Isomax or....   Those units take heavy products and break the big ones into little ones. Those numbers are harder to get hold of but directionally it ends up the same.    Really light products are very profitable. Ethylene and Propylene to name two. Those are cracked from slightly heavier feeds like NG and Propane and Ethane. The cracker harshness determines the feed for distillation. Those feeds come from less profitable products like diesel and gasoline.    So...there is a swap cost. How much market is there TODAY and what crude am I running TODAY..... what is my process capable of always.    There is this as well. The USA uses allot more gasoline than it does diesel so in the cracker the process is tilted to gasoline production which....limits supply of diesel. OTR uses the most and it has different requirements than automotive and agricultural.  Limiting auto products.    You are correct however. It is less refined, just less of it. Allot less. 
    • Grumpy Bear
      Transmission Temperature Hitting 220s

      By Grumpy Bear · Posted

      Most thermostatically controlled ATF systems use a 'wax' pill just like the one in your water thermostat. They work on the expansion volume of the wax and the pill is constructed in such a way as to limit the travel to remain within that range. This means it has an opening temperature often called the 'cracking temperature' and a fully open temperature. For whatever reason oil is designated by it's fully open temperature and water by it's cracking temperature.    Between the two it the "Regulating Temperature" The entire range is about 20 F from closed to open. In your example the lower limit, opening point of 145 F then has a fully open temp of 165 F and a throttling temperature of 155 F.    Thing is, the throttling temperature needs two things to work properly. Enough system load high enough to reach the minimum and a heat sink (cooler/exchanger) large enough to prevent any load applied from exceeding the fully open temperature.    If your system exceeds the fully open temperature it is screaming MORE COOLER.    Here is the silly part of the whole thermostat system where the oil is cooled/heated by the radiator. Nothing is flowing to that system until the oil temperature reaches the cracking temperature unless it is equipped with a minimum flow bypass orifice or a bypass built into the seating surface of the plunger. That system meant to get it up to temp quicker isn't doing a thing until WORK drives if from ambient to cracking temp. One a cold winter day, like zero F, it may never get hotter than about 110 F. Sometimes not even that.    People forget or are young enough to not know that until this millennia transmissions were cooled by the radiator cold tank alone and without a thermostat at all.  In the 50's they weren't even cooled. OEMs learn everything the hard way.    When an OEM tells you the trans "Works best" between 175 F and 220 F it means works best for THEM. The transmission thermostat is fuel play. If you watch you trans temps like I do you will learn that it may take a hundred miles if you are not towing and not driving more than say 55-60 mph on a zero F day to even reach 120 F and it might sit there all day if it's colder. Yet if functions perfectly over about 100 F. It may need to get a bit warmer for the fuel and spark maps to go without an multiplier.    Worry more about too hot. Use a cooler large enough to put that thermostat in range.         
    • KARNUT
      Gas Prices

      By KARNUT · Posted

      Around 2008 if memory serves they took sulfur out. That was when diesel went up. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...