Brake Issue

00redgt · December 1st, 2007, 11:00 PM

today i changed my rear brake calipers,both of them, an know i barley have brakes on the back,i have bleed them for over a hour trying to get them back,the brake paedal is to soft an only the front wheels lock up on it when applying hard.is there something i did worng,an i have already took them back an tried 2 new ones,im out of a clue here

HMUSN · December 1st, 2007, 11:02 PM

did you turn the pistons in the caliper so they seated ?

gsjohnson · December 1st, 2007, 11:13 PM

Bleed your mastercylinder. There are 2 bleeder screws at the master, one for the front and one for the rear. Just bleed them both and you will fix your problem. Hope this helps.

Garhfer · December 2nd, 2007, 01:52 AM

Originally Posted by gsjohnson

Bleed your mastercylinder. There are 2 bleeder screws at the master, one for the front and one for the rear. Just bleed them both and you will fix your problem. Hope this helps.

+1 the one everybody forgets lol

dansgt · December 2nd, 2007, 04:53 AM

is your abs light on? the locking up sounds like a problem i've experienced with fords when the abs system has a failure in it. for the no rear brakes, i'd try bleeding the master cylinder, if it doesnt work your most likely gonna have to replace it. if thats the problem it will cause the problem with locking. good luck man.

hardhitter · December 2nd, 2007, 07:57 AM

I just changed all my brakes and I am having the same problem. The pedal goes straight to the floor and no fluid or air comes out of the bleeder valves when I pump the brakes like there is no pressure.

gsjohnson · December 2nd, 2007, 11:51 AM

Bleed the master!

00redgt · December 2nd, 2007, 12:38 PM

Originally Posted by HMUSN

did you turn the pistons in the caliper so they seated ?

what do you mean by seated

HMUSN · December 2nd, 2007, 12:53 PM

the rear brakes calipers have to have the pistons turned in to seat flush unlike regular calipers that are just pushed in with a brake tool/c clamp

hardhitter · December 2nd, 2007, 03:18 PM

In the Haynes manual it says that you can't bleed them at home if air gets in the HCU and that you need an expensive tool. Is this true?

HMUSN · December 2nd, 2007, 03:23 PM

nah.. you can bleed them at home.

you could use a ngs tester as well though.

Mustang 1998+ ABS Diag Info

hardhitter · December 2nd, 2007, 07:01 PM

Thanks it worked perfectly

HMUSN · December 2nd, 2007, 07:05 PM

oh glad too see it worked out for ya

dansgt · December 3rd, 2007, 02:29 AM

ok theres one easy way to prevent this especially if you are going to bleed the brakes anyways. i've found this only really works well on fords since there the only ones that have that problem alot, open the bleeder valve on the caliper when you compress the piston, than bleed the brakes like normal. sometimes with fords when you push in the piston without doing this, the inner seals of the master cylinder will be damaged and you will destroy it.

HMUSN · December 3rd, 2007, 12:38 PM

^ correct.

00redgt · December 4th, 2007, 01:07 AM

i bleed the master cylinder an now i have dam good brakes

WAR-PARTY · December 4th, 2007, 11:22 AM

^ the problem all along

00redgt · December 4th, 2007, 11:42 AM

yeah glad to see the brake pedal get stiffer

December 1st, 2007, 11:00 PM	#1
00redgt MM Fanatic 2000 mustang gt Join Date: Oct 2007 Location: vansant,va Posts: 4,073 iTrader: 5 reviews	Brake Issue today i changed my rear brake calipers,both of them, an know i barley have brakes on the back,i have bleed them for over a hour trying to get them back,the brake paedal is to soft an only the front wheels lock up on it when applying hard.is there something i did worng,an i have already took them back an tried 2 new ones,im out of a clue here __________________

December 1st, 2007, 11:02 PM	#2
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	did you turn the pistons in the caliper so they seated ? __________________

December 1st, 2007, 11:13 PM	#3
gsjohnson Enthusiast Join Date: Sep 2007 Location: Woodland Hills, CA Posts: 682 iTrader: 0 reviews	Bleed your mastercylinder. There are 2 bleeder screws at the master, one for the front and one for the rear. Just bleed them both and you will fix your problem. Hope this helps. __________________ 2004 Mustang GT The difference between a girlfriend and wife is about 50 pounds.

December 2nd, 2007, 11:51 AM	#7
gsjohnson Enthusiast Join Date: Sep 2007 Location: Woodland Hills, CA Posts: 682 iTrader: 0 reviews	Bleed the master! __________________ 2004 Mustang GT The difference between a girlfriend and wife is about 50 pounds.

December 2nd, 2007, 12:53 PM	#9
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	the rear brakes calipers have to have the pistons turned in to seat flush unlike regular calipers that are just pushed in with a brake tool/c clamp __________________

December 2nd, 2007, 04:53 AM	#5
dansgt Hardcore Enthusiast 03 Mustang GT 91 bmw 525i Join Date: Nov 2007 Location: Anaheim, CA Posts: 1,292 iTrader: 2 reviews	is your abs light on? the locking up sounds like a problem i've experienced with fords when the abs system has a failure in it. for the no rear brakes, i'd try bleeding the master cylinder, if it doesnt work your most likely gonna have to replace it. if thats the problem it will cause the problem with locking. good luck man.

December 2nd, 2007, 07:57 AM	#6
hardhitter MM Fanatic 1999 Mustang GT Join Date: Nov 2007 Location: Houston, TX Posts: 3,610 iTrader: 1 reviews	I just changed all my brakes and I am having the same problem. The pedal goes straight to the floor and no fluid or air comes out of the bleeder valves when I pump the brakes like there is no pressure.

December 2nd, 2007, 03:18 PM	#10
hardhitter MM Fanatic 1999 Mustang GT Join Date: Nov 2007 Location: Houston, TX Posts: 3,610 iTrader: 1 reviews	In the Haynes manual it says that you can't bleed them at home if air gets in the HCU and that you need an expensive tool. Is this true?

December 2nd, 2007, 03:23 PM	#11
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	nah.. you can bleed them at home. you could use a ngs tester as well though. Mustang 1998+ ABS Diag Info __________________ Last edited by HMUSN; December 2nd, 2007 at 03:26 PM.

December 2nd, 2007, 07:01 PM	#12
hardhitter MM Fanatic 1999 Mustang GT Join Date: Nov 2007 Location: Houston, TX Posts: 3,610 iTrader: 1 reviews	Thanks it worked perfectly

December 2nd, 2007, 07:05 PM	#13
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	oh glad too see it worked out for ya __________________

December 3rd, 2007, 02:29 AM	#14
dansgt Hardcore Enthusiast 03 Mustang GT 91 bmw 525i Join Date: Nov 2007 Location: Anaheim, CA Posts: 1,292 iTrader: 2 reviews	ok theres one easy way to prevent this especially if you are going to bleed the brakes anyways. i've found this only really works well on fords since there the only ones that have that problem alot, open the bleeder valve on the caliper when you compress the piston, than bleed the brakes like normal. sometimes with fords when you push in the piston without doing this, the inner seals of the master cylinder will be damaged and you will destroy it. __________________

December 3rd, 2007, 12:38 PM	#15
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	^ correct. __________________

December 4th, 2007, 01:07 AM	#16
00redgt MM Fanatic 2000 mustang gt Join Date: Oct 2007 Location: vansant,va Posts: 4,073 iTrader: 5 reviews	i bleed the master cylinder an now i have dam good brakes __________________

December 4th, 2007, 11:22 AM	#17
WAR-PARTY Hardcore Enthusiast 2001 YUGO GT Join Date: Aug 2006 Location: GOAT LOCKER PENSACOLA FL Posts: 1,701 Blog Entries: 1 iTrader: 0 reviews	^ the problem all along __________________ How I met my wife! Our first date...

December 4th, 2007, 11:42 AM	#18
00redgt MM Fanatic 2000 mustang gt Join Date: Oct 2007 Location: vansant,va Posts: 4,073 iTrader: 5 reviews	yeah glad to see the brake pedal get stiffer __________________

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