How do I properly check my calipers
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, How do I properly check my calipers in Past Cadillac Vehicle Discussion; Hey new job on the go, finally going to have some moneys to buy much needed brake pads and the ...
  1. #1
    oldmanlesabre is offline Cadillac Owners Fanatic
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    How do I properly check my calipers

    Hey new job on the go, finally going to have some moneys to buy much needed brake pads and the rotors I want. My question now, is how to I know My calipers are in good enough shape and the new pads will have even contact on the rotors? I tried some high speed braking as I think it was submariner who suggested it, and still no improvement. It almost feels like the ABS is kicking in when I brake...but its not, there is a difference...slightly. Which is strange, There would be no reason for it to come on under the conditions I have been driving in lately.

    When slowing down to a stop it jerks very bad with less force on the pedal I can really feel it almost catching and letting go while applying the same even amount of force on the pedal. I do get occasional brake screeching...but its not the typical low pad material, unless someone pulled off the warning clip. Anyways, thoughts?

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  3. #2
    oldmanlesabre is offline Cadillac Owners Fanatic
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    Re: How do I properly check my calipers

    Another question: I keep seeing listings for brakes/rotors that are either Heavy Duty, or Standard. What is the difference, says the are both for the same VIN? I want to guess Heavy Duty does not have ABS, whereas standard does, but I don't know, hoping someone else does, thanks

  4. #3
    oldmanlesabre is offline Cadillac Owners Fanatic
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    Re: How do I properly check my calipers

    I also see different size rotors listed...Anyone know for sure How I am supposed to know without going out and measuring them? rear looks to only be 11.7, front has 11.9 or 12.8 inch diameter options...

  5. #4
    dennis93coupe's Avatar
    dennis93coupe is offline Cadillac Owners Connoisseur
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    Re: How do I properly check my calipers

    Look for the Service Parts Identification Label. Not sure where it is on your car, or go to compnine.com and enter your vin in the search. There will be a list of codes showing all of the options and parts identification with a definition of that option. Takes a lot of the guess work out. A dealer will ask you for a vin if you go to them.

  6. #5
    oldmanlesabre is offline Cadillac Owners Fanatic
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    Re: How do I properly check my calipers

    used vehicle....some genius peeled off all the information stickers...........ALL of them.

  7. #6
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: How do I properly check my calipers

    Quote Originally Posted by oldmanlesabre View Post
    used vehicle....some genius peeled off all the information stickers...........ALL of them.
    ---------------------------------
    look under the spare tire cover in the trunk -
    it will have all the RPO - Regular Production Order codes unique to your car -

    I doubt you will have any HD stuff on your Deville -
    HD brakes etc is usually for limos - hearses - that kind of vehicle -

    you don't really inspect the calipers for much
    other than obvious leaks - and mounting hardware -
    you DO look at the pads for even wear
    both from inner and outer - and side to side -
    basically - all 4 brake pads - both inner and both outer -
    should display the same amount or wear -

    front brakes do a lot more work than the rears -
    which is why the front pads are larger than the rear -
    and it's not unusual to replace the fronts more often than the rears -

    a pulsating pedal could be caused by several things -
    out-of-true rotors are not uncommon -
    also deposits on the rotors are not uncommon -

    if you are going to get some kind of fancy "designer" rotors -
    DO NOT get the "drilled" type - they tend to crack over time -

  8. #7
    brougham is offline Cadillac Owners Master
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    Re: How do I properly check my calipers

    Typically as long as the calipers aren't leaking they are good and if they are sezied or sticking the car will pull to one side when you brake.
    It sounds like what you are describing is a warped rotor but if you just did the brakes drive it for a few days and see if the problem goes away. Maybe it's just something on the rotor or pads that needs to be worn off still.

  9. #8
    oldmanlesabre is offline Cadillac Owners Fanatic
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    Re: How do I properly check my calipers

    are EBC slotted rotors a bad option? I do not want the drilled type, but like the idea behind the slotted in theory... It is very dusty/muddy with lots of clay where I am..I change my filters and fluids more often out of necessity.

  10. #9
    dennis93coupe's Avatar
    dennis93coupe is offline Cadillac Owners Connoisseur
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    Re: How do I properly check my calipers

    I would go with standard rotors in your case. I don't go with the cheapest, but not the most expensive either. If the seals on your calipers don't have cracks or holes, they more than likely are OK unless they are stuck. Get under there with a garden hose and blow the dirt mud and watever off. Get in there on the wheel side as good as possible also. I've had a lot of experience with brakes in conditions as you have, keeping them cleaned off seemed to help alot.

  11. #10
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: How do I properly check my calipers

    Standard OEM factory rotors work just fine for me.

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