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.
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Lift the front of your Ford F-250 off of the ground using a jack and jack stands. Remove the wheels from the Ford with a lug nut wrench to prepare the truck for servicing. 2 Open the hood on the engine compartment and take the lid off of the master cylinder that bolts to the brake assister on the driver's side firewall.3 Remove the hex-head bolts on the back of the brake caliper with a socket. With the bolts removed, pull the caliper off of the Ford's brake rotor.4 Pull the old brake pads out of the caliper and discard them. Squeeze the brake piston back into the backside brake caliper with pliers, and then insert the new pads into the brake caliper.5 Pull the rotor cap cover off the middle of the rotor with a screwdriver and use a socket to remove the nut located behind the cover.6 Pull the rotor off of the wheel spindle.7 Remove the old wheel bearings from the brake rotor and insert them into the new rotor. If the old wheel bearings are worn, replace them with new bearings.8 Slide the new rotor onto the wheel spindle and secure it using a bolt and socket. After you tighten the bolt, press the cover back onto the rotor.9 Place the caliper on the rotor and secure it with a socket and hex-head bolts. 10 Duplicate the process on the passenger side of the F-250. 11 Close the master cylinder after putting the wheels back on the Ford and lowering it to the ground. Press on the brake pedal to seat the pads against the rotor Replace the F-250's Rear Brakes 1 lift the rear of the Ford F-250 off the ground with a jack and jack stands. Remove the wheels from the Ford with a lug nut wrench.2 Place a strip of paint on the back of the brake drum and rear brake drum cover so you can position the brake drum orrectly when you put it back on. If you plan to install new brake drums on your Ford F-250, skip this step. 3 Place the brake drum puller on the brake drum and pull the drum from the wheel hub. The method for attaching the brake drum puller depends on the brake drum puller that you use. 4 Remove the springs that attach the brake shoes to the wheel hub by pulling them off with pliers.5 Lift the old brake shoes off of the wheel hub and place the new brake shoes on the wheel hub. Secure the new shoes with the springs.6 Pound the brake drum onto the axle hub with a rubber mallet.7 Duplicate the process on the passenger side of the Ford.8 Put the wheels back on the F-250, lower it to the ground and, then press on the brake pedal to seat the shoes against the brake drum.
Try a clean and adjust on the rear shoes, because sometimes when they aren't properly adjusted they won't seem to work properly. Also there is a common "squishy" petal feeling after brake work on most all larger GM's around that year, wich I have run into several times. Try test driving it, and put a couple miles on it, That usualy helps.