Question about 1994 Chrysler LeBaron

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When I apply the brakes, especially at higher speeds, the back of the vehicle starts to rotate conterclockwise for a moment then shifts the other way finally settling into a somewhat normal state. I've had the front pads and rear shoes replaced along with both rear wheel cylinders with no change in this annoying and potenciall dangerous problem. Is there some sort of brake proportioning unit that needs to be adjusted or changed. The car does not have an antilock braking feature. Thanks. Vince Granaldi Beverly, NJ

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  • vgranaldi Aug 22, 2010

    Thanks ginko,

    I'll look into all the items you suggested to me and hopefully I'll get this brake problem solved. Thanks again.

    Vince Granaldi


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Hi Vince,

Re:" I\'ve had the front pads and rear shoes replaced along with both rear wheel"

Did they bleed brake fluid completely when you did the job? The left rear brake is braking before the right weel one. Air in the brake lines can cause the problem.

Did the garage do a brake test to find out the breaking power on each single wheel? What is the result, is it rear, front brake or both?

Apart of that the part that they should have checked is the brake proportioning valve, that will probably need replacement. The job is not a minor repair, better having it done by a mechanic.

Posted on Aug 21, 2010

  • Ginko
    Ginko Aug 21, 2010

    Also on LeBaron, in this Chrysler the master cylinder piston operates directly on one front caliper and on one rear wheel cylinder at the opposite corner at the same time. I did not drive your car, so I cannot tell which brakes are seizing, but a defective master cylinder can easily cause a similar effect.

  • Ginko
    Ginko Aug 21, 2010

    errata: In my last comment, where I wrote at the same time, I meant on the same line.

    By the way the master cylinder in this car can also cause a similar problem.

    Check in order:

    Master Cylinder
    Proportioning valve (this fails rarely)

    Good luck.


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