Brake problems
- Thread starter Sanco213
- Start date
I have a 99 it once gave me trouble after a complete brake job I used a vacume to suck out all the fluid had my son filling the master cyl ...... also my 99 has bleeders on the master cyl you must start on the far away rear & work towards the front sounds like vacume block get a buddy & use the vacume tube to watch intill all the fluid is clean & air free ....... could be incorrect lines or calipers may be bound up or defective ? start it tomorrow another day with a friend two heads is a big help ..... good luck its fixable ...there is a valve I think its called a diverter valve it could be air bound ?
nyuk98gt
15 Year Member
Sanco213:
Did you bleed the master cylinder? There are a couple of bleed screws on the engine side of the m/c.
If you got air into your ABS then that might be the issue. I do not know if the '03 requires "the Ford ABS machine" to purge the air but some later model Mustangs need the machine and cannot be bled without it.
Chris
Did you bleed the master cylinder? There are a couple of bleed screws on the engine side of the m/c.
If you got air into your ABS then that might be the issue. I do not know if the '03 requires "the Ford ABS machine" to purge the air but some later model Mustangs need the machine and cannot be bled without it.
Chris
nyuk98gt
15 Year Member
Gents:
Pardon me, I posted CRAP info about the ABS requiring a special machine. What I was referring to was the NGS Star Tester device needed to review and clear ABS system codes. For brake bleeding, fill up the m/c and bleed as normally done, finishing with the two bleed screws on the m/c.
Here is an excellent link (imho) that gives you GOOD INFO about bleeding brakes and the ABS system.
http://www [take the space out to make the link work] .veryuseful.com/mustang/tech/brakes/bleeding.html
Chris
Pardon me, I posted CRAP info about the ABS requiring a special machine. What I was referring to was the NGS Star Tester device needed to review and clear ABS system codes. For brake bleeding, fill up the m/c and bleed as normally done, finishing with the two bleed screws on the m/c.
Here is an excellent link (imho) that gives you GOOD INFO about bleeding brakes and the ABS system.
http://www [take the space out to make the link work] .veryuseful.com/mustang/tech/brakes/bleeding.html
Chris
yes i have bled the master.. i get no air bubbles at all out of the brake system. from reasearch and calling ford, if i did by some chance get air into the ABS block, then it could be trapped. and if so the only way to get i tout is too cycle the abs with a scan tool that has an ABS brake bleed option. ford wants $100.00 to do it, but getting the car their is another issue. i don't think that my calipers could of gone bad just from sitting for a lil while, but idk. i think i may just buy one caliper and bleed it out just to be sure if it is the calipers or if i have to get the car to ford.
Found this on the ford-trucks forums under bleeding abs.....
If equipped with the 4 wheel anti-lock brake system and the Hydraulic Control Unit (HCU) has been replaced or is suspected of containing trapped air; bleed the brake system using the procedure below. Conventional brake system bleeding cannot remove the air trapped in the lower portion of the HCU. If a spongy brake pedal is present and air in the hydraulic control unit is suspected, use the following procedure:
1. Bleed the brake system as outlined in the conventional bleeding procedure.
2. Connect a New Generation Star (NGS) tester or equivalent scan tool, to the serial data link connector below the instrument panel as though retrieving codes.
3. Make sure the ignition switch is in the RUN position.
4. Follow the instructions on the NGS screen. Verify correct vehicle and model year go to the "Diagnostic Data Link' menu item, choose ABS Module, choose "Function Tests", and choose "Service Bleed."
5. Bleed the right-front wheel as follows:
---A. Open the caliper bleed screw and pump the brake pedal for 3 seconds. Repeat the procedure again.
---B. When the fluid runs clear, begin the program and continue to pump the brake pedal.
---C. Continue bleeding for approximately 1 to 2 minutes after the program ends and then tighten the bleed screw.
6. Repeat the bleeding procedure to the left-front, left-rear and finally the right-rear wheel.
7. Remove the pressure bleeding device and adjust the brake fluid level.
8. Road test the vehicle and check for proper brake system operation.
If equipped with the 4 wheel anti-lock brake system and the Hydraulic Control Unit (HCU) has been replaced or is suspected of containing trapped air; bleed the brake system using the procedure below. Conventional brake system bleeding cannot remove the air trapped in the lower portion of the HCU. If a spongy brake pedal is present and air in the hydraulic control unit is suspected, use the following procedure:
1. Bleed the brake system as outlined in the conventional bleeding procedure.
2. Connect a New Generation Star (NGS) tester or equivalent scan tool, to the serial data link connector below the instrument panel as though retrieving codes.
3. Make sure the ignition switch is in the RUN position.
4. Follow the instructions on the NGS screen. Verify correct vehicle and model year go to the "Diagnostic Data Link' menu item, choose ABS Module, choose "Function Tests", and choose "Service Bleed."
5. Bleed the right-front wheel as follows:
---A. Open the caliper bleed screw and pump the brake pedal for 3 seconds. Repeat the procedure again.
---B. When the fluid runs clear, begin the program and continue to pump the brake pedal.
---C. Continue bleeding for approximately 1 to 2 minutes after the program ends and then tighten the bleed screw.
6. Repeat the bleeding procedure to the left-front, left-rear and finally the right-rear wheel.
7. Remove the pressure bleeding device and adjust the brake fluid level.
8. Road test the vehicle and check for proper brake system operation.
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