Brake fluid flush

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Barney

Just make sure there is always fluid in the master DON'T let it run dry.

Newer (my 2012 for example) Ford trucks use Dot 4 not Dot 3 or the Dot 3/4. So check your manual

Get a mityvac or similar pump and you'll make it a much easier job.

There are dozens of videos on bleeding brakes on YouTube.

The day before, spray all brake bleeders with your favorite penetrating fluid. Do this at least twice and again before you start.

Get a piece of vinyl hose that fits snugly on the bleeder screw. Find a small spring clamp to secure it. Get an empty 1/2 liter plastic bottle. Drill a hole in the cap that is a tight fit for the hose. Put an inch or two of brake fluid in the bottom and push the hose through the cap down into this fluid.

Make sure the bottle stays upright and the hose below the level of the fluid AT ALL TIMES. Some people wire the bottle to some part of the vehicle to make sure it stays upright.

Top off the fluid in the master cylinder with fresh DOT 3 fluid. Open the bleeder screw, no more than 1/2 turn. (If you break the bleeder screw, you will be calling a tow truck to haul you to somewhere that can replace a caliper. $$$$ !) Gravity will force the fluid from the master cylinder into your catch bottle. After 5 or 10 minutes, the level in the bottle will be up about 1 or 2 inches. Close the bleeder.

Refill master with fresh DOT 3 fluid and move on to the next bleeder. You might have to do all 4 bleeders twice to get clean fluid out of each bleeder.