1968 Brake Issue
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, 1968 Brake Issue in Past Cadillac Vehicle Discussion; My 68 deville has drum brakes and it's acting weird when I first begin to slow down. Most of the ...
  1. #1
    sams2100 is offline Cadillac Owners Fanatic
    Automobile(s): 1968 DeVille Conv, 1999 DeVille, 2003 Escalade
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    1968 Brake Issue

    My 68 deville has drum brakes and it's acting weird when I first begin to slow down. Most of the time when you first begin to slow down, the car will jerk left (assuming the left front wheel is breaking before the right), and sometimes it will give a slight jerk to the right. Rarely it will jerk back and forth a time or two while beginning to slow down.

    After that initial swing to the left or right, it slows down as normal. Any ideas what might be causing this?

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  3. #2
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): Cadillac 78 Seville, 78 Coupe de Ville, 92 Sedan de Ville
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    Re: 1968 Brake Issue

    Probably leaky wheel cylinders. Does your brake fluid stay full? I have had a leaky one on my 70 Impala for a few years now. It locks up the rear wheel on the first few stops then smooths out. I just keep filling the master cylinder every couple weeks or so. If you are losing fluid too fast then it will have to be changed.

  4. #3
    outsider is online now Cadillac Owners Connoisseur
    Automobile(s): 1987 Brougham D'Eligance, 1969 Calais Sedan, 1995 FWB
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    Re: 1968 Brake Issue

    ^ Yeah, what Al said. Easy enough to swap out but you will have to bleed the brakes after.

  5. #4
    carnut is offline Cadillac Owners Master
    Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
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    Re: 1968 Brake Issue

    I presume that because its that old, you've replaced all the wheel cylinders and hoses to them recently. If not, then do so! I wouldn't drive it till the brakes (breaks!) were overhauled. I've owned many old cars and I always inspect and/or fix brakes first before I use the car daily. If the brakes break while driving you now have an old "wrecked" car!

  6. #5
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): Cadillac 78 Seville, 78 Coupe de Ville, 92 Sedan de Ville
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    Re: 1968 Brake Issue

    ^ Very true. You don't want to be riding around with 40 year old brake hoses and other parts. I would hope it has been maintained over the years. But, it is fairly common for old cars that sit around a lot to have a leaky wheel cylinder. In a perfect world it should be replaced properly; that's your call I guess. For me, I have too many cars and the maintenance gets spread pretty thin.

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