Replaced Master Cylinder Twice Pedal still going the Floor! - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 6 (permalink) Old 05-18-2019, 02:52 PM Thread Starter
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Replaced Master Cylinder Twice Pedal still going the Floor!

I have a 2001 Taurus that I am on my wits end with. The brake pedal sinks to the floor.

I have replaced the master cylinder twice...Advanced Auto, after market......Still goes to the floor. All the brake calipers, rotors and brake lines have been replaced!

No Codes on the ABS. I have a Launch X431 pro Mini Scanner. I have pulled the ABS and tried to clean in Ultra Sonic and blown out. Activated the valve via scanner seems to be alright No Codes for the electronics Module.

I must of did a full bleed 10 times now....Still goes to the Floor?????????? WTF could be wrong???????
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post #2 of 6 (permalink) Old 05-18-2019, 06:07 PM
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If you have rear drums, check the shoes are close enough to the drum and that wheel cylinders have no leaks.

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Upgrades: Mach RCU & Tweeters, Bluetooth, Ford Cargo Tray, LED Trunk Lighting, Headlight Relays, Adjustable Pedals
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post #3 of 6 (permalink) Old 05-18-2019, 10:08 PM
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Since it has ABS are you using a computer to activate the ABS pump to get all the air out?
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post #4 of 6 (permalink) Old 05-19-2019, 10:04 AM
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Quote:
Originally Posted by cjmedina007 View Post
I must of did a full bleed 10 times now....Still goes to the Floor?????????? WTF could be wrong???????

Just making sure because you didn't actually say it.


Did you BENCH BLEED the master cylinder first before trying to install it?
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post #5 of 6 (permalink) Old 05-22-2019, 11:28 PM
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Quote:
Originally Posted by Automender12345 View Post
Since it has ABS are you using a computer to activate the ABS pump to get all the air out?

^^^ This ^^^
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post #6 of 6 (permalink) Old 05-23-2019, 11:37 AM
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Quote:
Originally Posted by zenriddles View Post
Just making sure because you didn't actually say it.


Did you BENCH BLEED the master cylinder first before trying to install it?
Quote:
Originally Posted by Automender12345 View Post
Since it has ABS are you using a computer to activate the ABS pump to get all the air out?
With both these guys on this one.

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