GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 5 of 5
  1. #1

    Default Brakes - Altitude

    I just had my brakes done on my '04 Sliverado 4wd. Rotors/pads all way round. I took it to a shop because they started making a rotational grinding sound after I went skiing at around 9500 ft. After the brake job I went skiing again and the same noise. This stops, however, when I decend to around 5500ft. The shop did not change brake fluid. I have just moved from sea level (Boston) to Salt Lake City (4500ft). Could altitude affect my brakes?

    Thanks,

    JimBrim
    04 Silverado LT Lifted with several other mods

  2. #2

    Default

    I've never heard of altitude affecting brake performance or causing them to make sounds.

    My guess is temperature and maybe the amount of stuff they have on the road to keep them from freezing. Here they started using mag. chloride (I think?) chemical spray and that stuff covers everything in film. If they're doing that there, that could be it. It would burn off while the truck is moving once you're out of the stuff.
    Scott

    ΜΟΛΩΝ ΛΑΒΕ

    '94 Chevy Suburban K1500
    3" exhaust w/ aero turbine non-baffled muffler
    CFM Technologies TB spacer
    CB w/ 44" whip antenna


  3. #3
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    Location
    High Deserts of SoCal
    Posts
    2,554

    Default

    Could it be the sound of the abs system working?
    Mine makes that sound when I've been tooling around in the slippery stuff the last couple of weeks.
    There is no way to happiness....happiness is the way.:yipi:
    http://kx6ijq.blu.livefilestore.com/y1pcOFVNH4ix1hjyGUVyXK5LRfef7qSeWzlZDorpQhIEfkZ2ZA  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

  4. #4

    Default

    Quote Originally Posted by JimBrim View Post
    I just had my brakes done on my '04 Sliverado 4wd. Rotors/pads all way round. I took it to a shop because they started making a rotational grinding sound after I went skiing at around 9500 ft. After the brake job I went skiing again and the same noise. This stops, however, when I decend to around 5500ft. The shop did not change brake fluid. I have just moved from sea level (Boston) to Salt Lake City (4500ft). Could altitude affect my brakes?

    Thanks,

    JimBrim

    welcome to utah...hope you enjoy it more then i do lol im about an hour north of you in ogden. anyway i guess you could just watch everything and see if you get any abnormal wear on anything, if not then i would just keep them clean and the noise shouldnt be too bad. mine make noise in the summer but the winter they are silent.


    and regarding the way utah takes care of there roads, crappy, your lucky if they salt. when they do repair or redo a road they use the cheapest stuff possible, which is why you can go to certain states and have MTs and it rides like a high way tire and you come to utah and your bouncing all over the place

  5. #5

    Default

    Man i'd check and see if your rotors are warped, i got a 2000 and my rotors were grinding util i got them turned, as soon as it got cold they started grinding again, if your rotors warp a tiny little bit it makes a hell of a lot of difference, you may have to either get new ones or keep getting them turned

Similar Threads

  1. 1500 brakes vs 2500 brakes
    By nos351wcm in forum Lifted & Offroad Suspension
    Replies: 3
    Last Post: 04-14-2010, 12:42 AM
  2. brakes
    By 07silverado07 in forum General Chevy & GM Tech Questions
    Replies: 3
    Last Post: 04-06-2010, 01:58 AM
  3. Brakes
    By 2000 Gmc Truck in forum Lifted & Offroad Suspension
    Replies: 1
    Last Post: 09-19-2009, 06:04 PM
  4. Brakes
    By billlp in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 6
    Last Post: 06-23-2009, 01:46 AM
  5. Brakes
    By makthenif in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 5
    Last Post: 07-20-2007, 07:24 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •