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1994 Sierra 2500 6.5l diesel strong enough?

Discussion in 'Trucks and Trailers' started by Grzube, Feb 5, 2007.

  1. Grzube

    Grzube LawnSite Member
    Posts: 61

    I,m thinking of buying another truck, a 94 /2500/6.5l diesel/160kms,one of my trailers is a 6 ton dump{max weight=9500 lbs}any suggestions guys?
  2. ScagBoy09

    ScagBoy09 LawnSite Member
    Posts: 73

    I think that diesel is more than capable to haul that.
  3. LindblomRJ

    LindblomRJ LawnSite Silver Member
    Posts: 2,570

    I would steer clear of the 6.5 diesel. Seems they have a problem with the oil pump and supply and only last about 180,000 miles. There are better options out there.

    I have a 96 2500 with Vortec 5.7 not a bad setup.
  4. Sydenstricker Landscaping

    Sydenstricker Landscaping LawnSite Bronze Member
    Posts: 1,281

    Those motors are not bad motors at all. It is not an oil pump problem they had, its the injector pump failing. What goes wrong is the little computer on it gets over-heated and fries. That leaves the truck dead and they will try to replace the entire pump, lots of $$$$. When you could just replace that chip and be rolling again. I think you can relocate it to the firewall, out of the heat
  5. Albemarle Lawn

    Albemarle Lawn LawnSite Bronze Member
    Posts: 1,544

    Fuel leaks, electronics, bad cranks, bad heads, you name it.

    Stay away.

    With high diesel fuel prices today, if you are considering old trucks, don't mess with those old diesels, get a big-block gasser, or even 350 gasser if the truck won't get to heavy.
  6. Mowingman

    Mowingman LawnSite Platinum Member
    from Texas
    Posts: 4,662

    I had a 95, 3500HD with that engine, and it was a great truck. I believe that is a pretty good engine, after the fuel pump upgrades are done on it. Bought mine with 180,000 on it. It had been a wrecker in it's previous life. Used it to tow my mowing equipment trailer for several years, then sold it. The guy who bought it took it to Louisiana to tow mobile homes in after the big hurricane. It was still running great and had about 200,000 on it when he bought it.
    Fuel mileage was pretty poor on it as I recall.
  7. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Posts: 9,544

    I wouldn't be buying a 6.5 they are turd mobiles. The list goes on for miles with the problems those engines have. Right now I know of a 6.5 with a broken crank the same truck has 400,000 kilometers and its seen 4 engines in the last 12 years.

    You say the truck has 160,000kms expect to replace the engine at 200,000kms but you will be doing the 5000 dollar injection pump before then.

    The 6.5 won't have enough power to pull the scum off the top of your peasoup :laugh:
  8. stroker51

    stroker51 LawnSite Senior Member
    Posts: 819

    I used to work for a sod farm and we had one of those old 6.5 chevy diesels. It was a powerless turd. I've got an old F250 w/ the 351W, and it will out pull that truck at the sod farm. I've never heard very many good things about these engines. I'd look for a Powerstroke or Cummins in that year of truck if you want a diesel to do what a diesel is known for, power and fuel mileage. The chevy won't have either.
  9. topsites

    topsites LawnSite Fanatic
    Posts: 21,653

    As for an engine, so long the truck is properly geared, a 6-cylinder will haul 10+ thousand pounds.
    It's not the engine, it's the transmission...
    If that were not true, the Kenworth's 350 Cummins would never get its load down the road.
    While I can appreciate 450+ cid's in an 18-wheeler, I don't see a need for anything much beyond a 5 liter for a p'up, maybe a 350...
    All the 400+ cid's do is swallow fuel at astonishing rates, you don't actually get down the road that much faster.

    But for hauling that kind of weight I would check into a bigger truck, like the 3500.

    The 3/4 ton will pull 10k, but that's really pushing the transmission's limits.
  10. topsites

    topsites LawnSite Fanatic
    Posts: 21,653

    I take that back, it appears the Sierras 3500 line does sport 6.6 - 8.1 liter engines.
    Which, that's around 396 - 490 cid...
    And the Iveco Stralis (a mid-to-long haul 18-wheeler) sports 8 - 10.9 liter and bigger engines...
    Which is 480- 650 cid (1 liter = ~60 cid's).
    I was mistaken.

    But I still think a 3/4 ton would be huffing and puffing considerably under a 10k load.
    6 tons = 12k?

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