Bleeding the brakes after replacing ABS Pump/Control Module (1st Gen)

2000 Tacoma SR5 (1st Gen)

My brake actuator (ABS Control Module and Pump) went bad and I have had the computer end rebuilt. I'm getting ready to replace the system (I have a 2nd one in the car now that's also broken).

When I replace the ABS Brake Pump I'll need to remove the brake lines that are connected...which will add air to my brake system.

After it's connected can I bleed my brakes how I normally would when changing brake fluid? Do I need to do something special to move brake fluid through the brake system? Are they all connected?

THANKS!

 

I'm not familiar with the procedure, but I do believe that there is a specific way to bleed the air when you end opening the system and introducing air there at the pump.

 

You have to start at the wheel farthest from the master cylinder and work your way up. So bleed the right rear, then the left rear, then the right front, then the left front. Then when you think you’ve got all the air out, repeat those steps about 15 more times because the ABS modulator traps air like a son of a bitch.

 

Oh is that all it is? I thought there was more to it for the bleeding process when replacing the modulator/box thing. Well I guess I don't mean to talk how little the process is because it sounds like a pain but that's kinda nice to know

 

There's also a 5th bleed point up under the frame near the driver rear wheel.

 

It’s simple, just irritating and time-consuming. You have to have someone pump and hold the brakes while you crack open the bleeder valves.

I somehow end up doing all my wrenching at 2 AM on a Saturday night so to bleed brakes by myself, I cut a piece of 2X4 to wedge between the seat and brake pedal to hold it down while I open the bleeders.

Now I have removed all the ABS and LSPV components which makes it a much quicker process.

You’re right, it’s on the LSPV valve.

 

I just did axles seals/wheel bearing/all brakes on mine last week and i tried to bleed the brakes that way using a 2x6 but couldn't seem to get enough pressure. Ended up just waiting until the wife got home and had her help me do it the old fashioned way.

Also, I was going to check the service manual, but Timmy's T4R video on this, has a note that says the ignition needs to be ON when you bleed the brakes but ONLY on the 01-02 T4R. I saw this after I bled mine and hadn't looked into it yet.

 

The 2X4 method works well if you leave the engine running.