Brakes- pedal goes almost to floor with clicking and u can feel the clicks in the ped
#1
Audiworld Junior Member
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Join Date: Oct 2014
Location: Thornton, colorado
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Brakes- pedal goes almost to floor with clicking and u can feel the clicks in the ped
Doesn't do it all the time. Just did first time today. Bit did it like 3 times today.
And when it happens. U still have brakes but it's just feels weird at the pedal for a minute. .
Not sure what it is. Never had troubles like this with a car. Please help. Thanks
And when it happens. U still have brakes but it's just feels weird at the pedal for a minute. .
Not sure what it is. Never had troubles like this with a car. Please help. Thanks
#3
Sooo....I had a somewhat similar issue. I replaced my power steering rack and then had a "clunking" noise when I would go over bumps some of the time. I checked EVERYTHING and couldn't find it. Then GSROB and I started talking and he mentioned the same issue after his steering rack replacement and he found it was the brake pads that were cheaper pads and/or worn brake hardware that allowed the pads to move/rattle that caused the clunk. After he started saying this I started paying more attention to my brakes.
I noticed a clicking feel and a clunk if I hit my brakes. I could feel it in my pedal the first 3-4 times I pumped the brakes. After that, it would go away for a while and then start over again. I figured it could be the pads binding and then loosening up and then binding again.
Yesterday, as I was driving down the road I heard something come lose and get shot into the underside of my car, and then suddenly my brakes went to hell- it would shake everytime I hit the brakes even from a 3 mph stop.
Turns out my caliper bolts were loose and I lost one. The bolts that hold the caliper bracket to the hub that is.
Long story short, I would pull the wheels, check and make sure the pads aren't binding/loose and then make sure all the bolts are tightened sufficiently.
I noticed a clicking feel and a clunk if I hit my brakes. I could feel it in my pedal the first 3-4 times I pumped the brakes. After that, it would go away for a while and then start over again. I figured it could be the pads binding and then loosening up and then binding again.
Yesterday, as I was driving down the road I heard something come lose and get shot into the underside of my car, and then suddenly my brakes went to hell- it would shake everytime I hit the brakes even from a 3 mph stop.
Turns out my caliper bolts were loose and I lost one. The bolts that hold the caliper bracket to the hub that is.
Long story short, I would pull the wheels, check and make sure the pads aren't binding/loose and then make sure all the bolts are tightened sufficiently.
#5
When mine started, it was rattling but not bad. Then it seemed to go away for a while, although I may have just become used to it. It probably took about 6 months for the bolt to work itself out. Then it started getting to be bad all the time, then it went really bad.
I can see why hitting the pedal caused it to go away...the pads clamped down and there was then pressure to hold everything in place until it worked loose again....but I don't know how it was intermittent either but it sure seemed to be.
I can see why hitting the pedal caused it to go away...the pads clamped down and there was then pressure to hold everything in place until it worked loose again....but I don't know how it was intermittent either but it sure seemed to be.
#6
AudiWorld Super User
Don't drive the vehicle until you find the problem.
Point is start with the obvious…check your brake fluid reservoir.
Then pull all the wheels and visually inspect the brakes/pads/rotors. It helps to put the entire car up on a lift or jackstands.
Then have someone start the car (keep it in park) and then operate the brakes while you LOOK at them and listen and see what you can see or hear. That should include strange flexing or changes to caliper as a result of loose caliper bolts (that's a zebra, BTW. Those bolts should NEVER come loose!), either the ones the caliper slides on or the ones bolting the caliper to the bracket or the bracket to the upright.
Then put the trans in Drive and operate the brakes; same look/see/listen.
It wouldn't hurt to use a VCDS to check for codes in the ABS system.
If you've eliminated all the potential causes at the wheels, chances are it's in the master cylinder or ABS module.
Lastly, brake pedal going to floor is generally reason to deadline the vehicle…don't drive it until you figure out what is causing the problem.
Last edited by SloopJohnB@mac.com; 11-08-2014 at 10:38 AM.
#7
AudiWorld Senior Member
Sloop's suggestions are good. If you cannot get to them right away and are still driving this car then at least check the wheel studs. If they are loose it can give similar symptoms.
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#8
AudiWorld Super User
loose wheel bolts won't cause pedal to go to floor.
#9
AudiWorld Senior Member
True. I guess my suggestion was stupid. But I have had loose studs before and was confounded to figure it out for a few hours. Even had a mechanic look at the car and drive it. He was miffed as well. Felt like suspension related problem. Point being loose studs could be a contributor to the issues. Or, it could remind somone else reading this thread to remember to consider this simple yet significant possibility. My wife had a wheel come off when she was driving. The shop had forgotten to torque the wheels. I did not know about it as I had no reason to check a shop's work.
#10
AudiWorld Super User
True. I guess my suggestion was stupid. But I have had loose studs before and was confounded to figure it out for a few hours. Even had a mechanic look at the car and drive it. He was miffed as well. Felt like suspension related problem. Point being loose studs could be a contributor to the issues. Or, it could remind somone else reading this thread to remember to consider this simple yet significant possibility. My wife had a wheel come off when she was driving. The shop had forgotten to torque the wheels. I did not know about it as I had no reason to check a shop's work.