GD Brakes

GINA2MR2 · 01-08-2008, 10:15 PM

so i did the rear brakes (calipers rotors pads)...... and i bleed it and it felt fine pressure wise. but i just drove it and i got no pedal pressure until you hit the end of the pedal and then the fronts lock up. and ive been working on it since 3pm and its now 10:15pm ..... ... ... .. any help"?

DenverMR2 · 01-08-2008, 11:05 PM

Something my dad told me is that your calipers won't release until you back up in the car and thats why after any brake job at Just brakes or a place like that you'll see them backing up so i would try that always works for me

MR2TRD1 · 01-08-2008, 11:11 PM

Bleed several times....make sure you are bleeding with 2 people and not trying to do it by yourself. Have that person hold the pedal down after 10-12 pumps while you crack the bleeder screw. Make sure all the shims got put back in.

kbrew8991 · 01-08-2008, 11:28 PM

yeah, sounds like you didn't bleed properly and still have air somewhere

GINA2MR2 · 01-09-2008, 11:38 AM

ive done tons of brakes.... but im going to bleed it again .. never hurts. and i think im going to bleed the fronts. .. .. and i didnt nned shims so. .. i dk

MR2TRD1 · 01-09-2008, 01:13 PM

You should reuse the stock shims. Should be 2 peices in each pad.

TomsMR2 · 01-09-2008, 07:39 PM

the master cylinder is a 2 cylinder pump, as a failsafe.

when your mc fails it does exactly what you said. not saying its 100% that, but its a possibility that bleeding your brakes dislodged some crap causing a leak inside the master cylinder.

bleed again, if it doesnt work, look at the mc.

Ben · 01-09-2008, 10:53 PM

Shims wouldn't cause any type of braking issues other than noise. Shims reduce brake squeal and thats it.

MR2TRD1 · 01-10-2008, 12:46 AM

Quote:

Originally Posted by Ben

Shims wouldn't cause any type of braking issues other than noise. Shims reduce brake squeal and thats it.

I know..I was just saying.

Version135b · 01-10-2008, 01:30 AM

i thought the backing up and slamming on the brakes was for drums only?

GINA2MR2 · 01-11-2008, 11:47 PM

thanks for the help... i sleep on the problem and i thought about bleeding the front brakes and i did and i bleed the rears again and i have fantastic pedal pressure. and i didnt have any shims on the old brakes.

MR2TRD1 · 01-12-2008, 01:40 AM

Glad you solved your problem. Typically you bleed from the caliper the farthest away from the master cylinder and work forward. Usually you have to bleed all four because air finds its way into everything. When ABS is involved some newer cars require bleeding on the ABS block with a pump.

Now if you want a hassle...try bleeding the clutch.. :-( vacuum pump nightmare.

01-08-2008, 10:15 PM	#1 (permalink)
GINA2MR2 Not A VR6 Join Date: Dec 2007 Location: J-Town Posts: 255 Thanks: 2 Thanked 4 Times in 4 Posts iTrader Rating: (0/0% )	GD Brakes so i did the rear brakes (calipers rotors pads)...... and i bleed it and it felt fine pressure wise. but i just drove it and i got no pedal pressure until you hit the end of the pedal and then the fronts lock up. and ive been working on it since 3pm and its now 10:15pm ..... ... ... .. any help"?

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01-08-2008, 11:05 PM	#2 (permalink)
DenverMR2 Mr. Physics Join Date: Aug 2006 Location: Denver, CO Posts: 330 Thanks: 16 Thanked 19 Times in 19 Posts iTrader Rating: (0/0% )	Something my dad told me is that your calipers won't release until you back up in the car and thats why after any brake job at Just brakes or a place like that you'll see them backing up so i would try that always works for me

01-08-2008, 11:11 PM	#3 (permalink)
MR2TRD1 pimpin' valet ;-) Join Date: Feb 2005 Location: Atlanta Posts: 1,892 Thanks: 1 Thanked 31 Times in 28 Posts iTrader Rating: (11/100% )	Bleed several times....make sure you are bleeding with 2 people and not trying to do it by yourself. Have that person hold the pedal down after 10-12 pumps while you crack the bleeder screw. Make sure all the shims got put back in.

01-08-2008, 11:28 PM	#4 (permalink)
kbrew8991 gimme some turns Join Date: Apr 2006 Location: Houston, TX Posts: 1,095 Thanks: 39 Thanked 52 Times in 45 Posts My Google Map iTrader Rating: (1/100% )	yeah, sounds like you didn't bleed properly and still have air somewhere

01-09-2008, 11:38 AM	#5 (permalink)
GINA2MR2 Not A VR6 Join Date: Dec 2007 Location: J-Town Posts: 255 Thanks: 2 Thanked 4 Times in 4 Posts iTrader Rating: (0/0% )	ive done tons of brakes.... but im going to bleed it again .. never hurts. and i think im going to bleed the fronts. .. .. and i didnt nned shims so. .. i dk

01-09-2008, 01:13 PM	#6 (permalink)
MR2TRD1 pimpin' valet ;-) Join Date: Feb 2005 Location: Atlanta Posts: 1,892 Thanks: 1 Thanked 31 Times in 28 Posts iTrader Rating: (11/100% )	You should reuse the stock shims. Should be 2 peices in each pad.

01-09-2008, 07:39 PM	#7 (permalink)
TomsMR2 Formerly Tom Brokaw Join Date: Feb 2005 Location: Bay Area Posts: 2,040 Thanks: 8 Thanked 152 Times in 129 Posts Blog Entries: 1 iTrader Rating: (0/0% )	the master cylinder is a 2 cylinder pump, as a failsafe. when your mc fails it does exactly what you said. not saying its 100% that, but its a possibility that bleeding your brakes dislodged some crap causing a leak inside the master cylinder. bleed again, if it doesnt work, look at the mc.

01-09-2008, 10:53 PM	#8 (permalink)
Ben Propulsion Restored Join Date: Aug 2006 Location: Oceanside, CA / Reno, NV Posts: 3,278 Thanks: 18 Thanked 234 Times in 221 Posts My Google Map iTrader Rating: (10/100% )	Shims wouldn't cause any type of braking issues other than noise. Shims reduce brake squeal and thats it.

01-10-2008, 01:30 AM	#10 (permalink)
Version135b what's skills precious? Join Date: Oct 2007 Location: Troy, Michigan Posts: 190 Thanks: 13 Thanked 7 Times in 7 Posts Blog Entries: 2 My Google Map iTrader Rating: (1/100% )	i thought the backing up and slamming on the brakes was for drums only?

01-11-2008, 11:47 PM	#11 (permalink)
GINA2MR2 Not A VR6 Join Date: Dec 2007 Location: J-Town Posts: 255 Thanks: 2 Thanked 4 Times in 4 Posts iTrader Rating: (0/0% )	thanks for the help... i sleep on the problem and i thought about bleeding the front brakes and i did and i bleed the rears again and i have fantastic pedal pressure. and i didnt have any shims on the old brakes.

01-12-2008, 01:40 AM	#12 (permalink)
MR2TRD1 pimpin' valet ;-) Join Date: Feb 2005 Location: Atlanta Posts: 1,892 Thanks: 1 Thanked 31 Times in 28 Posts iTrader Rating: (11/100% )	Glad you solved your problem. Typically you bleed from the caliper the farthest away from the master cylinder and work forward. Usually you have to bleed all four because air finds its way into everything. When ABS is involved some newer cars require bleeding on the ABS block with a pump. Now if you want a hassle...try bleeding the clutch.. :-( vacuum pump nightmare.