how do you bleed the HCU
08-21-2007, 08:20 PM
#1
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Join Date: Jun 2007
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Posts: 24
how do you bleed the HCU
So I driving around today and my front brakes started grinding a little. So i drove the stang home and changed the front brakes out with the cobra conversion kit i had. Well the swap went off without a prob took about 45 minutes. I bleed the lines and started it up and the pedal went about an inch from the floor then had a little pushback. I pumped the brakes about 100 times and its still the same way. I even tried turning the steering wheel back and forth all the way left for a min then the right for a min then shut it off and pumped the brakes and it still feels the same. I tried bleeding the calipers both with my wife pumping the brakes then i tried it with the vacuum pump. I was looking in the haynes manual and it said that if you dont plug the lines you may have to get the dealer to bleed the HCU. I would rather not do that seeing as i dont like anyone working on my stang but me unless i have too or my wife forces me too. Any help would be greatly appreciated.
Thanks all
Coop
Thanks all
Coop
08-21-2007, 08:48 PM
#3
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Join Date: Jun 2007
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Posts: 24
RE: how do you bleed the HCU
I have a day or 2 since my wife is in school right now and doesnt have classes for a couple of days so i will be driving her car into work tommorow. I am going to retighten the lines tommorow and then try bleeding it some more i am wiped out for now and need to get my work stuff ready for tommorow. Thanks
08-21-2007, 10:48 PM
#5
Join Date: Jan 2007
Posts: 15
RE: how do you bleed the HCU
When you bleed the brakes on these cars its best to bleed all 4 wheels. Sounds like you are just bleeding the fronts. Bleed them in this order.
Right Rear, Left Rear, Right Front, Left Front. I've bled the breaks on my car just by opening the valve and letting the gravity pull the fluid out.
Hand pump make it quicker though.
Right Rear, Left Rear, Right Front, Left Front. I've bled the breaks on my car just by opening the valve and letting the gravity pull the fluid out.
Hand pump make it quicker though.
08-22-2007, 12:05 PM
#6
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Join Date: Jun 2007
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Posts: 24
RE: how do you bleed the HCU
ORIGINAL: gilly615
Try bleeding the master cylinder, I had the same problem when i was doing some work on my brakes and it solve the problem
Try bleeding the master cylinder, I had the same problem when i was doing some work on my brakes and it solve the problem
. Drove it down the road and the front brakes worked awesome. Only issue i had is I heard the same grinding I herd before i replaced the front brakes. when i glanced at my rear brakes the first time they had like 70 percent pad on them but that was just the one side of the rotor i was looking at. i think a slide or something is stuck because i think the grinding is coming from the rear of the rotor. I will have to pull the wheel off to check that. Good thing is I have the rear cobra conversion kit, bad thing is I have to pull the axles out to change them and that sucks.
08-22-2007, 04:54 PM
#7
4th Gear Member
Join Date: Oct 2006
Location: Kentucky
Posts: 1,460
RE: how do you bleed the HCU
ORIGINAL: coop2000gt
Thanks bleed the master cylinder and presto it worked like a champ. Drove it down the road and the front brakes worked awesome. Only issue i had is I heard the same grinding I herd before i replaced the front brakes. when i glanced at my rear brakes the first time they had like 70 percent pad on them but that was just the one side of the rotor i was looking at. i think a slide or something is stuck because i think the grinding is coming from the rear of the rotor. I will have to pull the wheel off to check that. Good thing is I have the rear cobra conversion kit, bad thing is I have to pull the axles out to change them and that sucks.
ORIGINAL: gilly615
Try bleeding the master cylinder, I had the same problem when i was doing some work on my brakes and it solve the problem
Try bleeding the master cylinder, I had the same problem when i was doing some work on my brakes and it solve the problem
. Drove it down the road and the front brakes worked awesome. Only issue i had is I heard the same grinding I herd before i replaced the front brakes. when i glanced at my rear brakes the first time they had like 70 percent pad on them but that was just the one side of the rotor i was looking at. i think a slide or something is stuck because i think the grinding is coming from the rear of the rotor. I will have to pull the wheel off to check that. Good thing is I have the rear cobra conversion kit, bad thing is I have to pull the axles out to change them and that sucks.
08-22-2007, 10:54 PM
#8
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Join Date: Jun 2007
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Posts: 24
RE: how do you bleed the HCU
Well pulled the rear brakes and found the slides were stuck on the right rear. It was so bad that it ground the pads down to the rivets and the rotors a bit as well. Gave me an excuse to do the cobra conversion in the rear. Took me around 4 hours and the swap went by without a hitch. nice pretty red calipers all around now and most important she stops alot better. Thanks all for the help
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