Brake pedal going to the floor, help

I have a 2008 Toyota Tacoma 4x4 and my break pedal was goin to the floor so I bleed the lines and that didn't help so I went and bought a new master cylinder and bench bleed it and rebleed the lines with a pump and got all the air out of them and the break pedal still goes to the floor... And help would be greatly appreciated..

 

Did you check the brake pads when you first noticed the pedal going to the floor? Or there's a chance you could have got a defective master cylinder.

 

Yes the pads are practically brand new the first one I bought was defective so I took it back and got another one

 

the rears adjusted properly? front calipers frozen will cause a low pedal cause your basically using just the rears or 1 front and both rears

 

Maybe try clamping off the brake lines and see if it makes a difference.

 

^ not sure of serious? Don't clamp off your brake lines.

 

Obviously don't drive with clamped brake lines. Sorry should have been more specific

 

1. Is there any brake fluid leaking at any of the wheels?

2. Is there brake fluid leaking at any of the lines or connections?

3. Is the brake fluid level in the Master Cylinder dropping?

4. Is the linkage properly attached at the pedal?

5. Is the linkage properly attached to the Master Cylinder?

6. Are you sure the air has been completely bled from the system.

If the answer to 1, 2 and 3 are NO and the answer to 4, 5 and 6 are yes... Then the Master cylinder is defective.

 

Thanks for the help I finally got it and now it throwing a p0022 code

 

Well....... What was it.


p022 Code: Camshaft Position "A" - Timing Over-Retarded (Bank 2)

Retarded cam timing: With warm engine and engine speed of between 500 rpm and 4,000 rpm, all conditions (a), (b) and (c) met (2 trip detection logic)

(a) Difference between target and actual intake valve timings more than 5°CA (Crankshaft Angle) for 4.5 seconds.

(b) Current intake valve timing fixed (timing changes less than 5°CA in 5 seconds).

(c) Variations in VVT controller timing 19°CA or less of maximum delayed timing (retarded).

Trouble Areas:
• Valve timing
• Oil control valve (OCV)
• OCV filter
• Camshaft timing gear assembly
• ECM

The Oil Control Valve and Filter are common for causing this issue.