Question about 1989 Ford F 350

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1989 Ford F350 2 wheel drive dually 460 ci gas motor

The brake pedal is squishy and goes to the floor. The pads and rotors, rear wheel cylinders have been replace. No leaks. I just replaced the master cylinder. I bench bled the cylinder until it appeared to be firm. I bled each wheel until no more air (went thru 4 bottles of new fuild in the process). The brake pedal still is mushy and goes to the floor. Is there an ABS hydrualic valve that needs to be bled? If so where is it on my truck? I bled the **** out of this thing, even parked ti overnight on hills to get air to the front and back before bleeding. No is coming out of the bleeder valves.

I am at a loss.

Please let me know your thoughts.

Sincerely,

Ed
ebell65@verizon.net

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  • Anonymous Jan 08, 2009

    I have a1994 F250 w/diesel engine and basicly the same problem. I have learned (after replacing the master cylinder) that the problem lies in the ABS valve/system, not the master cylinder. I have not affected a solution as I just am just now working on it. A call to NAPA help line # 888-876-6272 provided some very helpful information concerning my problem.

  • Anonymous Feb 01, 2009

    I have the same problem on my 1997 f350 2WD

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Check you adjusters on the back wheels they are probly installed backwards

Posted on Jan 27, 2013

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5 Inspect Brake Fluid Type Brake fluid loss or contamination 1989 Ford F350 2 wheel drive dually 460 ci gas mot - grey_line.gif 10 Inspect Master Cylinder (Brake System) Worn or leaking brake master cylinder. grey_line.gif 11 Inspect Brake Power Booster Damaged booster vacuum line/check valve, or diaphram

Posted on Dec 01, 2008

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