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View Poll Results: Does your brake pedal hit the floor?
Yes, if i push it hard enough. 17 41.46%
No, I cant get it to the floor even if i try. 22 53.66%
Sometimes, but not always. 2 4.88%
Voters: 41. You may not vote on this poll

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Old 08-09-2005, 01:21 PM   #1
acr2001
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Default Does your brake pedal hit the floor?

I created this pole to find out how everyones brake systems are doing after owning the car for a while. My brakes are all new, system just bled, and on a HARD brake the pedal still hits the floor. A bad master cylinder im pretty sure.

...
- 1993 SL1 Auto 100,000+ miles

Last edited by acr2001; 08-09-2005 at 01:26 PM..

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Old 08-09-2005, 01:25 PM   #2
bgates2b
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Default Re: POLL: Does your brake pedal hit the floor?

Only when my front tires rub through the flexible brake hose, an annual occurance for me.

Otherwise, no.

As a side note, I LOVE MY EBC Green pads

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"Congratulations on your brand new 2007 Acura" - Tenisha, the On*Star rep that handled my call during the Aura's delivery

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Old 08-09-2005, 01:51 PM   #3
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Default Re: POLL: Does your brake pedal hit the floor?

bgates- sounds like you need to reroute your flex line. Mine was doing the same thing and the line finally burst while doing a hard stop at an intersection. Luckily no one was in front of me. Now I have SS lines that are routed away from the tires.

--Tom

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Old 08-09-2005, 02:02 PM   #4
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Default Re: Does your brake pedal hit the floor?

I remember SPS used to sell braided stainless steel lines that solved that problem but now they don't seem to stock any type of brake line.

The only place that I could find braided lines was TireRack but I do not know if they re-route the lines

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Old 08-09-2005, 02:48 PM   #5
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Default Re: Does your brake pedal hit the floor?

It's just when you reinstall the new lines, you make sure they are routed away from the tire before you tighten it down. It's what I did and haven't had any problems since.

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Old 08-09-2005, 03:00 PM   #6
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Default Re: Does your brake pedal hit the floor?

I thought it might of been a design flaw. I remember the SPS lines stated that they were designed to avoid this. I assumed that the lead off from the Caliper was longer than the original design.

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Old 08-09-2005, 03:08 PM   #7
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Default Re: Does your brake pedal hit the floor?

Hmm, I always assume that if you can get the brake pedal to hit the floor, then you have not properly bled your brakes. Air does not compress like brake fluid...

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Old 08-09-2005, 07:30 PM   #8
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Default Re: Does your brake pedal hit the floor?

Quote:
Originally Posted by rkuris
Hmm, I always assume that if you can get the brake pedal to hit the floor, then you have not properly bled your brakes. Air does not compress like brake fluid...
true
but if the seal(s) in the master cyl are worn, you can bypass fluid under pressure without an external leak............

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Old 08-09-2005, 07:39 PM   #9
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Default Re: Does your brake pedal hit the floor?

my brake pedal never hits the floor. that would be scary.

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Old 08-09-2005, 08:40 PM   #10
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Default Re: Does your brake pedal hit the floor?

Quote:
Originally Posted by bgates2b
I thought it might of been a design flaw. I remember the SPS lines stated that they were designed to avoid this. I assumed that the lead off from the Caliper was longer than the original design.
No, if you put the stock ones on the right way, they work fine. Unbolt your caliper, rotate it 360, and re-install. The line will be behind the strut, and away from your tires.

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Old 08-10-2005, 12:38 AM   #11
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Default Re: Does your brake pedal hit the floor?

Quote:
Originally Posted by eRic 02sc2
my brake pedal never hits the floor. that would be scary.
yea at first it was, especially because ive been driving for about 2 months... but now im used to it. it NEVER happens during normal driving or even heavy braking, only if i SLAM the brakes to see what could happen.

and by slam the brakes, i mean everything short of skidding, which apparently my brakes suck too much to do anyways, atleast when i tried to at 30 mph i couldnt skid... but the car stopped HARD, seatbelts locking and everything un-tethered flying around!

...
- 1993 SL1 Auto 100,000+ miles

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Old 08-10-2005, 11:12 AM   #12
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Default Re: Does your brake pedal hit the floor?

I don't agree with the master cylinder assumption. If your master is "leaking", then it sort of leaks slowly. If you press the pedal several times in succession and each time it goes a little lower, OR if it slowly sinks as you hold it at maximum pressure, THEN you have a master cylinder problem.

The only other cause (other than the obvious BLEED ISSUE) I can think of for having that much play in the pedal might be that the calipers are for some reason are requiring too much fluid when you pump them. The calipers are supposed to be self-adjusting, so perhaps warped rotors or drums could cause this; I'm not sure, it's just a guess.

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Old 08-10-2005, 11:22 AM   #13
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Default Re: Does your brake pedal hit the floor?

AIR is Compressable, not brake fluid.

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Old 08-10-2005, 11:56 AM   #14
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Default Re: Does your brake pedal hit the floor?

well my front rotors and pads are BRAND new and the brakes had this play before and after they were done. HOWEVER, my rear drums are a year or two old, and when the mechanic installed them he had tons of issues with them because he couldnt get to the adjustment star. Driving in reverse up to about 25 mph and slamming on the brakes didnt help adjust them much either, although it did make the system feel a tiny bit stronger... im not sure anymore

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- 1993 SL1 Auto 100,000+ miles

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Old 08-10-2005, 12:14 PM   #15
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Default Re: Does your brake pedal hit the floor?

Well, I can tell you FOR SURE that having a broken rear drum assembly can cause this problem, having had this exact problem myself. You can buy the star assembly from most auto parts stores (I got mine at Pep Boys). Not having the rear brakes self-adjust CAN and WILL cause this problem. In my case, the adjustment lever broke, pretty much making the rear brakes unusable (this happened when the vehicle was stolen; they obviously pulled the parking brake handle while at freeway speeds more than once).

I don't understand this whole "can't get to the star". If you pull the drum apart, it's right there. If not, it is not adjustable.

As a safety point, I would strongly encourage you to eliminate (or at LEAST limit) your driving on a vehicle in which you can push the brake pedal to the floor.

And, yes, air is much more compressible than brake fluid, but brake fluid is also compressible, just not as much. The DOT rating says exactly HOW much compression is acceptable. As mentioned already, air in the line can also cause this problem.

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Old 08-10-2005, 12:49 PM   #16
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Default Re: Does your brake pedal hit the floor?

The pads in the front are the same ones I had since I got my car, two years ago, and are probably older than that too. When I have to slam on my brakes, it really don't go all the way down to the floor and I still manage not to hit the guy in front of me. also, I brake earlier than most people do down here and I tend to press down lightly first, let go, then press down harder again.

However, about a few months ago I had to get the calipers in the rear drums replaced and the drums resurfaced because the calipers plain old broke and it got to the point where there was no resistance when I pushed down on my brakes because the fluid leaked out from the back and put more strain on the front pads when I had to stop. I luckily got those fixed just in time before my front brakes needed to be replaced too. I do plan on getting new pads in the front soon, too.

As for skidding. I used to skid if I slammed on the brakes but now that I have new tires, that hasn't happened to me yet.

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Old 08-10-2005, 03:55 PM   #17
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Default Re: Does your brake pedal hit the floor?

the rear drums on an S-Sat adjust from applying the park brake lever, not from stopping in the reverse direction like many other cars

since my daughter never uses the park brake (it's pretty flat here in Indiana and it's an automatic) I have to give the lever a tug once a month or so........

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Old 08-10-2005, 04:02 PM   #18
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Default Re: Does your brake pedal hit the floor?

Huh?

The rear brakes on the S-Series cars are SELF adjusting. When the movement exceeds some design threshold, a little lever spins the star gear which tightens things up a bit.

The parking brake is on a separate cable from the main brake line (useful if you have a brake system failure: you can still stop the car with the parking brake) and is NOT self adjusting. There is an adjustment under the center panel for that.

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Old 08-10-2005, 06:25 PM   #19
Bill Murray
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Default Re: Does your brake pedal hit the floor?

I know the Haynes manual is not the Saturn bible, but here's what it says:

"the drum brakes incorporate an adjustment mechanism which is activated as the parking brake is applied"

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Old 08-10-2005, 06:39 PM   #20
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Default Re: Does your brake pedal hit the floor?

Wow, looks like you might be right! Here's a diagram and an explanation:

http://auto.howstuffworks.com/drum-brake2.htm

Learn something new every day! I guess I'll start using the parking brake each time I park the car!

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