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1990 blazer suspension/brake problems

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by skelly1, Sep 2, 2002.

  1. skelly1

    skelly1 1/2 ton status

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    I have a 1990 1500 series full size Blazer 4X4. I lifted it with a 4" suspension lift and ever since, it pulls when you brake. The faster you stop, the more it pulls. It has had all brake parts replaced including the proportioning valve. I took the blocks that came with the lift out and put in a set of 4" lift springs on the rear. I noticed that the right side of the vehicle will leave a skid mark after a panic stop with a right curve at the end of the skid. There will be a very light skid on the left side that is about 1/10 the length of the right side. I still wonder about the proportioning valve, but can't prove it. Does anyone have any suggestions? Is there a way to make sure that the proportioning valve is centered? I have been fighting this for about 6 months now. I am considering having it stolen so I can buy a reliable vehicle.
     
  2. Rolled

    Rolled 1/2 ton status

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    If you park it in my garage, I'll steal it /forums/images/icons/grin.gif
     
  3. PGL4VT

    PGL4VT Registered Member

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    Check the adjusters on the back brakes. Mine were frozen and I had to heat them to free 'em up and then lubed 'em and put 'em back in. To get 'em set correctly, you have to drive in reverse and use the brakes and they will self-adjust.
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    You've already replaced the proportioning valve once, and it didn't fix it, why would you suspect it again?

    99.99% of the time they are blamed, they are not the cause of the problem.
     
  5. skelly1

    skelly1 1/2 ton status

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    Thanks all. I was concerned that the prop valve needed to be centered. All the brake parts have been replaced.
     
  6. dyeager535

    dyeager535 1 ton status Premium Member

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    It *shouldn't* need recentered, however in some cases they do, and I'm sure you can find the thread with the "search" function.

    None of mine have ever needed re-centering, but I think Gim mentioned he did. No big deal to do it. I believe if it DOES need (manual) re-centering, you're going to see the brake light glowing at you until you do.
     

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