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FORD BRONCO -> BRAKE SYSTEM; 4WABS, RABS, Self Test... -> Bleeding
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"...2 Man Brake Bleed; Usual safety stuff (Block the wheels, trans in correct gear, on safe axle stands if jacked up, etc.). Broncos are high enough you should be able do do this without jacking it up. Check the level of the brake fluid, add if needed. Recheck periodically & add as needed throughout the bleeding process. Do not allow it to run out. If it runs out, you must start over. Have your helper pump the brake pedal a few times & then hold it down. Do not let the pedal up while the bleeder is open. Open the bleeder valve, observe the fluid flowing from the bleeder. Fluid & air bubbles can spray, it's best to run a clear hose from the bleeder into a container. Some would say wear safety goggles. Keep your mouth closed. Close the bleeder valve while the pedal is still depressed. 6-Have the helper pump the brake pedal, observe height of pedal. Repeat steps 2-6 until no bubbles are seen in the fluid from the bleeder valve, then move to the next wheel, following this order: RR, LR, RF, LF (On newer trucks with the RABS valve, it's RR, LR, RABS valve, RF, LF. On trucks that are newer still with 4 wheel ABS, I don't know). Be sure that each bleeder is closed before moving on. If the brakes are otherwise in good condition, adjusted, & not leaking, the pedal should be firm when done. Check the level of the brake fluid, add if needed. Recheck again soon to be sure fluid isn't leaking. 78 to 81ish info from this thread: Where to buy a Brake Pressure Differential Valve?Originally Posted by cweagle; OK, it's all back together. The switch still seems to not work, but I freed up the valve (apparantly - I had to make a little thing to hold the pin in the front OUT while bleeding the front brakes, otherwise the valve seemed to shut them off 90% of the way and I could not effectively bleed them). I took it out, sealed the ports VERY well, beadblasted it, and then cleaned the threads and seats with paper towels and brake cleaner. So even though the Haynes book says that you only have to do that if you are using a pressure bleeder, that's not true, at least on my 81!..."
Source: by ElKabong (Ken, El Kabong) at FSB
4WABS Bleeding in a 96 from the 1996 F-150, F-250, F-350, and Bronco Workshop Manual; CAUTION: Perform this procedure only if the Hydraulic Control Unit (HCU) has been replaced. Follow conventional bleed procedures if the HCU is not being replaced.
Source: by Ford via
4WABS Hydraulic Control Unit (HCU) Bleeding Procedure (DIY)
Source: by SigEpBlue (Steve) at FSB
Source: by waltman at
Bleeding in a 96 from the 1996 F-150, F-250, F-350, and Bronco Workshop Manual
Source: by Ford via
Bleeding in a 96 from Workshop Manual
Source: by Ford via miesk5 at FSB
Brake Fluid Flush Made Easy
Source: by Fat Diesel at fte
Brake Fluid Flushing, General
Source: by Larry H at
Fluid Specifications; "...Use Ford High Performance DOT 3 Brake Fluid C6AZ-19542-AA or equivalent DOT 3 fluid meeting Ford specification ESA-M6C25-A; CAUTION: Never reuse brake fluid that has been drained from the hydraulic system or has been allowed to stand in an open container for an extended period of time..." in a 96 from 1996 F-150, F-250, F-350, and Bronco Workshop Manual
Source: by Ford via
Ford High Performance DOT 3 Brake Fluid C6AZ-19542-AA in a 96 from the 1996 F-150, F-250, F-350, and Bronco Workshop Manual
Source: by Ford via
Hydraulic Line Repair in a 96 from the 1996 F-150, F-250, F-350, and Bronco Workshop Manual; \"...Steel tubing is used in the hydraulic lines between the brake master cylinder (2140) and the front brake tube connector and between the rear brake tube connector and the rear wheel cylinder (2261). Steel tubing is also used to connect the brake master cylinder to the flexible brake hose at the rear axle. Flexible hoses connect the brake tube to the disc brake calipers (2B120) and to the rear brake tube connector. When replacing hydraulic brake tubing, hoses or connectors, tighten all connections securely. After replacement, bleed the brake system at the rear wheel cylinders, the disc brake calipers and at the brake master cylinder. Refer to Hydraulic System Bleeding in this section. WARNING: COPPER TUBING SHOULD NOT BE USED IN THE HYDRAULIC SYSTEM. USE ONLY SAE J526 OR J527 OR EQUIVALENT STEEL TUBING. NOTE: If a section of the brake tube is damaged, replace the entire section with tubing of the same type, size, shape and length. Be careful not to kink or crack the tubing when bending it to fit the frame or rear axle forms. Double flared brake tubing should provide good leakproof connections. NOTE: Always clean the inside of a new brake tube with clean isopropyl alcohol..."
Source: by Ford via
Low Pedal / Brake Bleeding “Tips” Dual Piston Calipers in 88 and later Ford E & F Series 250/350 and many vehicles equipped with a variety of caliper configurations.
Source: by
Lubricant And Maintenance Materials Specifications & Capacity Charts for 96 Bronco, F-150, F-250, F-350 & F-Super Duty
Source: by Ford via