Just replaced master cylinder on 1990 aerostar and bled the brakes, still the pedal goes to the floor
Did you bench bleed the master cyl. before installing it? then when you installed the new master, did you bleed all 4 points? If yes, then check all for points for leaking caliper/s and leaking wheel cylinder/s. If the van has ABS, check the valve body for a bleeder screw and see if air bleeds out of it. If you've checked everything twice and did everything right then your new master cyl. may be defective.
Get a new MC. they tend to come bad right out the box.
I have a ford f250 2 wheel drive i replace the front brakes and then bled when i the brakes i have nothing go to the floor but when i drive the brakes get tighter after a while they go back the floor and then get tighter so i replaced the brake booster and front calipers and bled still same thing (but the back brakes work fine)
10
Inspect
Master Cylinder (Brake System)
Worn or leaking brake master cylinder.
11
Inspect
Brake Power Booster
Damaged booster vacuum line/check valve, or diaphram
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thank you for your reply, it was right on the money, as soon as we got a new master cyl. everything came out right.
On my 2002 ford escape my brake light is on. The brakes are very soft i can push the pedal to the floor basically. i refilled the master cylinder fluid, any other suggestions
On my 2002 ford escape my brake light is on. The brakes are very soft i can push the pedal to the floor basically. i refilled the master cylinder fluid, any other suggestions
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