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#1
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Will one parking brake failure knock out both?
My parking brakes no longer work
This is in the 1983 w126 300sd.... I put the car up on ramps and the cable seems fine - tension in both the left and right portions at the rear, pulls when parking brake pedal depressed, no slack. I do not have a suitable trolley jack right now to pull the rear wheels and take a look at the parking brake mechanism in the axle. I'm therefore puzzled as to why I have no parking brakes at all. I can't understand why the failure of a brake unit on one side would knock out the brake action on the other side too. |
#2
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Its a balanced system, the force is evenly split at the bracket up on the underside of the car.
You might have lost the friction material on one or more of the parking brake shoes....that can make them not work anymore. I've been trying to get the parking brakes on my SD to work for years....so far I have only accomplished a fairly weak grip...better than nothing I guess.
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#3
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most of the time parking brakes go bad when someone installs a lug bolt that's too long, and goes through the rotor and touches the e-brake assembly, thereby breaking it after driving even a short distance. that's why you gotta look behind the brake assembly after installing new lug bolts to make sure they're not too long, and grind them down if necessary.
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#4
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I'd also take a look at the brake as soon as possible. When little bits start to let go back there, it gets pretty exciting.
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