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4 x 4 system

Discussion in 'Chevy Trucks' started by dutchman, Mar 19, 2007.

  1. dutchman

    dutchman Senior Member
    Messages: 281

    Ok. This is what I don't get I have a customer with a driveway that goes up hill. I was not able to make it up there the other night when I was plowing but the owner who has a SUV had no problem to get up his driveway. I have a 2001 Chevy 2500 HD ext. Cab and the plow was in the up position and I tried 4x4 low and high. So I like to know what I do wrong or is there a problem with my truck. Thanks for the help
     
  2. Mark13

    Mark13 PlowSite Fanatic
    Messages: 5,737

    What condition are your tires in? Also the extra weight of your truck and blade trying to up the driveway probably didnt help either. Also unless your rear axle is posi, you can only sometimes get all 4 wheels to spin. Usually only 2-3 wheels spin. Those are just some of the ideas i had as to what might be your problem.
     
  3. scottL

    scottL PlowSite.com Addict
    Messages: 1,600

    Are you real sure your 4x4 actually engaged?
     
  4. AbsoluteH&L

    AbsoluteH&L Senior Member
    Messages: 573

    Weight weight weight.Thats just a thought. Yeah good tires help too. It depends on the snow too. I hate that really fluffy stuff that as soon as you spin it's slick as ice. I have nearly broke my a&& on that stuff a few times. I did a lot of hilly drives and always had to add weight in the rear for better traction. My Cherokee plows better than any pickup I have ever owned. If I do need weight I have a steel plate 1" thick that just fits in the back, it goes rite to the back of the back seat and just fits.
     
  5. dutchman

    dutchman Senior Member
    Messages: 281

    I put wait in the back and the tires are good. If I put it in 4x4 you can hear it but how do you really know it works or not. I had the same problem with my 1992 chevy 2500 and I thought after I bought this one thinks would be better but I guess not
     
  6. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    A sure fire way to diagnose if your 4WD is engaged, is to first pull it in 4X4 (of course) and LEAVE THE IGNITION KEY IN THE RUN POSITION, jack up ONE front tire until it's off the ground and try and spin it. If it spin's, then it's not engaged.
     
  7. dutchman

    dutchman Senior Member
    Messages: 281

    Thanks for the info
     
  8. scottL

    scottL PlowSite.com Addict
    Messages: 1,600

    In 4x4 mode mine has a certain hum to it. I suspect everyone hears the same. If your in 4x4 the difference between you moving with and without it is like night and day. I suspect your's is not working.
     
  9. mayhem

    mayhem PlowSite.com Addict
    from Peru MA
    Messages: 1,016

    Try driving with the plow on in 2wd mode on a snowy road or parking lot and then switch to 4wd...you'll know the instant you step on the gas if you're in 2wd or 4wd.

    When you couldn't get up the driveway were you trying to push snow or climb up with the plow raised so you could push downhill?
     
  10. REAPER

    REAPER 2000 Club Member
    from 60050
    Messages: 2,228

    Next time to get the job done try backing up the hill. When you get to the point of stopping or getting stuck plow what is in front of you and repeat process till done.
     
  11. dutchman

    dutchman Senior Member
    Messages: 281

    I had the plow in the up possition well the 4x4 is working but the Mechanic told me the tires are wider than normal could that have something to do with it.........It is one size up


     
  12. AbsoluteH&L

    AbsoluteH&L Senior Member
    Messages: 573

    Bigs tires need lots of weight. I only see them work well on big 1 tons, Diesels, or contractors trucks. My buddy's reg cab 3/4 Ford with cap & tools weighs more than my dad's ex cab Diesel.
    ps the 2 quotes from supercrew an myself are from a different tread.
     
  13. Gmgbo

    Gmgbo Senior Member
    Messages: 159

    i have the same problem. Sometimes i cant make it out of my driveway with 245-75-16 stock tires, with good tread on my 3/4 with plow and sander, but my sister makes it out fine in an AWD ford escape.

    On my 05 with posi and no sander I make it out fine. Both trucks have working 4wd
     
  14. mcwlandscaping

    mcwlandscaping 2000 Club Member
    Messages: 2,557

    I figured out not too long ago that i don't have a posi rear diff, and that is a royal PITA, especially in this last storm on long pushes (forget about them). This spring im going to swap it out for a posi!

    That could be your problem, but if you want to see if you are in four wheel drive, put it in 4*4hi and turn the wheel all the way to one side. If the truck is hard turning or the turning radius is huge compared to normal driving in two wheel drive, then you are in four wheel drive.
     
  15. The mayor

    The mayor Senior Member
    Messages: 272

    A friend of mine has the 2500hd. Now he doesn't plow but in a storm with the stock tires in 4 wheel drive he couldn't get out of his own way. He replaced the stock tires with something different...all was better.
     
  16. Yaz

    Yaz PlowSite.com Addict
    from NH
    Messages: 1,061

    Stock 245 on the GMC and Chevy are a big complaint. I had mine siped ( small slits to increase traction in ice) and they are 100 times better. Ballast and tire preshure makes a huge difference. If you have 80PSi in the rear with no ballast you domed from the start.
     
  17. Joshjeepcj7

    Joshjeepcj7 Member
    Messages: 68

    put chains on it
     
  18. gearhead

    gearhead Member
    from ind.
    Messages: 57

    plow your way up the drive