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Thread: Parking Brake

  1. #1
    Don.Williams
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    Default Parking Brake



    My 98 C5 parking brake has never really worked effectively, that is it doesn't even hold the car when idling in gear.

    I would think there would be a service bulletin about this but find none.

    I kept reminding the dealer about this but they never wrote it up.

    When I finally demanded that they do something about it they told me SORRY, your warranty just expired.

    Anyone else with a similar problem? Any solution other than to pay someone to remove the wheels and do an adjustment?

  2. #2
    johnl
    Guest

    Default

    I've had the same issue. When my 97 was new, I absentmindedly jerked up the parking break sort of hard. It sort or went thunk and seemed as if the cable was loose after that. I mean there was almost no resistance when pulling up the handle and the little release button would rattle. The dealer worked on it and it seemed a little better for a while, then went back to loose.
    Skip ahead to 75,000 mi. The right rear hub started making noise (the bearings were shot), when the dealer took it apart to repair it, guess what. "Sir your parking breaks are totally hosed and need to be rebuilt. They repaired the hub (under warranty) and parking breaks cost me $700 - $800.
    Skip ahead again to 132,000 mi. The parking break won’t hold. The pull feels fine so I would guess the shoes are worn out. We’ll see when I take it apart in the next few weeks.

    I have heard of some others with parking break troubles on some other boards, so you might have the dealer check them out when ever you take it in. (I mean, have them take it apart and have a look)

    J

  3. #3
    BackSpacer
    Guest

    Default

    here is a copy and paste from another forum.

    ***start paste***

    Tech Tip

    Parking Brake Adjustment -- 1 of 1
    Date Published: 2002-05-01

    Submitter's Name: Bill Matera
    Email Address: wmatera@snip.net
    Corvetteforum.com Member Alias: Evil-Twin

    I posted this fix several years ago, but it was lost in the software upgrade... When My C5 was new the e brake barely worked,, I took it to the dealer, and was told that brakes are a wear item and that I would have to pay for new shoes.. the car had less than 1000 miles on it .. the e brake only engages when the car is stopped so how could they be worn.. Any way I decided to take a look ans see if i could do anything..I was not crazy about the dealer touching my car anyway..



    OK.. here we go.. the e brake works similar to the e brake on most cars with rear drum brakes.. with that in mind...
    jack up the rear of the car...remove the wheels...then remove the bolts for the calipers...then the calipers and pads...you will see the caliper bracket.. it has two bolts that hold this to the brake backing plate.. they are very very tight... but they will come off ( They are 125 ft pounds with loctite)... Once the bracket is off you can remove the rotor ( make sure the e brake is not engaged ).....Next.. you will see how the system works.. it has a set of shoe brakes .. and the rotor has an internal drum... In the last few years I have found that many many C5 come from the factory with poorly adjusted e brakes... Now locate the star adjuster.... turn it out to make the shoes grow in diameter...( Mine were out 33 clicks)... I did ten clicks at a time and the slid the rotor back on.. I did three sets of ten before I could feel any drag... I then clicked five more and could not get the rotor on...I then backed off two clicks and got the rotor on.. it was tight when I started it on the shoes but when i finally seated it it was perfect.. I then did the other side.. it was out exactly the same amount.... I then put everything back...Now for the test...When I engaged the e brake.. it locked up the brakes at a point about 45 degrees.... 90 degrees being straight up.. the lock up was so positive...I knew I did it right..next ..
    to check the release .. I took the car to a hill... set the e brake .. car in neutral and it stayed there ... then to check on the release.. I slowly disengaged the ebrake...and found that the shoes where totally retracted after only an inch of lever release...after this fix I could stop the car using only the ebrake with the car doing ten miles an hour...The ebrake also has an auto adjust feature.. but it will only work if your e brake lever is between 45 degrees and 55 degrees..if your ebrake is out further than that the e beake will not auto adjust..... ( AUTOADJUST feature ) roll the car backwards on a hill.. or in reverse @ 5 mph..pull up on the e brake lever... this will slam your car to an abrupt stop.. the engagement of the shoes to the drum while the car is moving backwards will cause the shoe assembly to flex.. it is the flex that causes the blade to click the adjusting star one click... Do this three or four times and it will expand your shoes.. you can not over tighten thes shoes... if it needs two clicks to get to max... and you do four clicks.. it will only adjust the star two clicks.. Also remember to use loctite on the brackets and caliper bolts..If you have any questions on this repair .. feel free to e mail me or instant message me.. Good Luck.. Many people have emailed me with their positive results from this fix...
    Bill ( Evil-Twin )

    ***end paste***

  4. #4
    johnl
    Guest

    Default

    Back Spacer, You are the Man!......Thanks a bunch.
    John

  5. #5
    Don.Williams
    Guest

    Default Parking Brake




    HI-

    I have emailed this page to the dealer in question and also sent a FAX to service and the GM.

    If I don't get any response in a day or two I will post the name of the dealer here.

    DAW

  6. #6
    Don.Williams
    Guest

    Default Parking Brake



    I have had no luck with General Motors nor with the dealer.

    The problem is that every time you go in and ask for something like a brake adjustment they put you off, "We are a bit overloaded", "You're only having an oil change, why not do that later?" etc.

    The net result is that it may be on the scratch pad of the service writer but is never put in the computer, so there is no record that GM or anyone else can check.

    I have checked with some independent shops and they verify that this is a known C5 problem, not recognized by GM. They are also willing to describe their experience to anyone who asks but that doesn't bother GM, nor the dealer since "it's not on the record for your car".

    In my prior post I said that if I didn't get a positive response from the dealer I would post his name here. I warned the dealer, sent him this URL, but got brushed off once more. They say there is no computer record of my complaint, and that's indeed a fact.

    The dealer who gave me all the grief is:

    ;stupid Bob Stall Chevrolet
    La Mesa, California

  7. #7
    BackSpacer
    Guest

    Default

    I feel your pain. I do not go to a dealer unless I have to. I still have not adjusted my parking brake as per the instructions I have, but I am sure I can do it, and I plan to do it soon. If you lived close by and the adjustment is as simple as it sounds, I would consider adjusting yours for you, but NC is a long ways from California.

  8. #8
    Don.Williams
    Guest

    Default Parking Brake

    BackSpacer-

    I would guess you are in about the same situation I was in a while back.

    I would surmise from the date of your car that it's just out of warranty and the dealer refuses to take any responsibility for it.

    The lesson to be leaned is to get it in writing when you make what seems to be a minor request, and get it into the computer so the GM folks can see that you did ask for help.

    Frustrating, isn't it?

    I have the factory manuals for this C5, and have had them for each of the 4 Corvettes I have owned. It's true that if you can't turn up a service bulletin or recall within the warrnaty period you are just out of luck. The dealers don't go out of their way to help you in that regard. The only help you get is safety bulletins issued by the NTSB. Other problems are just ignored, hoping they will not be found until the warranty expires.

    Prior to this I always bought an extended warranty. They were relatively expensive and were never used for the C4's I had so I decided that the second year of C5 production would be bug-free. Not so!

    Just as a matter of interest, I have a new problem. The idler roller for the belt tensioner for the Air Conditioner needs to be replaced. I will be paying an independent Corvette service group to do that, but the interesting thing is that there is a TSR for that problem (87-61-13) and the fix is to install the same part, still being used for current production. I did get one belt tensioner for the other belt replaced under warranty but it didn't fix the problem. The dealer said "too bad" that's what the bulletin says to do.

  9. #9
    Don.Williams
    Guest

    Default Parking Brake




    For what it's worth I have the factory manuals for the 98, and I suspect they pretty much cover the mechanicals for the 99 and on C5's.

    I can scan in the short section on parking brake adjustment if anyone is interested, or email it to you.

    I don't know whether this would be a copyright violation, but if so, it would be one way to get the attention of a real person at GM. (Maybe an attorney, but that's better than no-one).

  10. #10
    BackSpacer
    Guest

    Default

    Do the instructions in your manual differ from the directions that I gave you? If so, email them to me.
    Thanks

  11. #11
    Don.Williams
    Guest

    Default Parking Brake




    Well, I did it and it seemed to work. Not having the special drum measuring tool, I had to adjust by feel, but now I have functional parking brakes.

    When I got to the point of making the adjustment I found that the star wheels were completely screwed in to the minimum extension, just what you would expect from a delivered part which was intended for production line adjustment.

    I also found the address for the dealer service survey reports and an old un-subimted blank request for a Satisfaction Survey. I will fill this out shortly and mail it in, along with all correspondence with the dealer.

    The address, in case anyone is interested is:

    Chevrolet Motor Division
    P.O. Box 10063
    Toledo OH 43682-4081

    These surveys are apparently very important to the dealers because they always called me to request that I submit a favorable survey. I have not, however, been able to find any way to reach the S. Calif. District Manager so I'll just make do with that address.

    Bottom line- I adjusted the parking brakes yesterday and can send some comments and photographs of a couple of key items to anyone interested. Actually there is another post which pretty well describes how to do it by feel.

    Two points are important:

    1.Both star wheels are on left-hand threads, so you have to turn them clockwise into their aluminum receivers to expand the drums.

    It helps to open the brake bleeder when you retract the pistons, apparently something related to the ABS system. Also, to my great joy, the calipers will sit nicely on the upper suspension assemblies so you don't have to worry about hanging them with bailing wire while you remove the rotors.

    By the way, my car only has 31,000 miles on it and the vibration damper has slipped to the extent that it causes extreme belt wear and noise. Total repair cost would be about $450. I doubt that GM will recognize that as their responsibility so here I go again with another quality issue for the 98 C5. There have been so many I have lost count.

    Don Williams

  12. #12
    Don.Williams
    Guest

    Default Parking Brake




    Well, I did it and it seemed to work. Not having the special drum measuring tool, I had to adjust by feel, but now I have functional parking brakes. The parking brake works quite well in reverse, but not as good as one would lexpect when going forward, so you can't trust it to hold your car on a hill.

    You still need to use the transmission park position.

    When I got to the point of making the adjustment I found that the star wheels were completely screwed in to the minimum extension, just what you would expect from a delivered part which was intended for production line adjustment.

    I also found the address for the dealer service survey reports and an old un-subimted blank request for a Satisfaction Survey. I will fill this out shortly and mail it in, along with all correspondence with the dealer.

    The address, in case anyone is interested is:

    Chevrolet Motor Division
    P.O. Box 10063
    Toledo OH 43682-4081

    These surveys are apparently very important to the dealers because they always called me to request that I submit a favorable survey. I have not, however, been able to find any way to reach the S. Calif. District Manager so I'll just make do with that address.

    Bottom line- I adjusted the parking brakes yesterday and can send some comments and photographs of a couple of key items to anyone interested. Actually there is another post which pretty well describes how to do it by feel.

    Two points are important:

    1. Both star wheels are on left-hand threads, so you have to turn them clockwise into their aluminum receivers to expand the drums.

    2. It helps to open the brake bleeder when you retract the pistons, apparently something related to the ABS system. Also, to my great joy, the calipers will sit nicely on the upper suspension assemblies so you don't have to worry about hanging them with bailing wire while you remove the rotors.

    Do plan on having a nice long breaker-bar to remove the caliper bolts, and have loc-tite on hand for use when you re-install them.

    By the way, my car only has 31,000 miles on it and the vibration damper has slipped to the extent that it causes extreme belt wear and noise. Total repair cost would be about $450. I doubt that GM will recognize that as their responsibility so here I go again with another quality issue for the 98 C5. There have been so many I have lost count.

    Don Williams[B]

  13. #13
    johnl
    Guest

    Default

    I too used the write up and my P break adjusted quit nicely. Do the reverse aout adjust routines and it will tighten right up. It took about an hour and this includes the time to clean and put the tools away.
    Sorry about your delar problems. I've been doing most of the work on mine for quite a while now and it really is an easy car to work on.
    Cheerrs
    J

  14. #14
    Don.Williams
    Guest

    Default Parking Brake

    Johnl

    Great that you too were also successful.

    We took more than two hours but maybe it would have taken less time with only one person. I had help.

    You mention that it is an easy car to work on, and I agree that it is, most of the time, but now look up what it takes to replace a crankshaft harmonic balancer. That's the next problem, at only 31,000 miles.

  15. #15
    johnl
    Guest

    Default

    As long as your in there, drop in a reverse grind cam.

    Just kidding. I know it's frustrating. The warranty coverage was nice but then I took a job and ended up commuting 1000mi/wk. Blew right through warranty milage, and I have been working on it ever since.
    Good luck with it.
    J

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