a rear brake line broke so i fixed it and i tried to
bleed the brakes and i can't get the air out
of the line (went thrue 3 cans of brake fulid)
need help

 

have a buddy help.

Close the brake system, then have him pump them 5 times. Then open the bleeder with his foot still pressed to the floor. Close the bleeder, then have him lift his foot, and repeat until all the wair is gone.

You need to bleed all 4 corners again, starting with the farthest from the MC, and working your way forward.

 

Bleeding Brakes

This is the proper way to bleed your brakes to avoid spongy brakes, etc...

1. Drivers side rear
2. Passenger side rear
3. Passenger side front
4. Drivers side front
5. LSPV (Load sensing proportioning valve)

 

The LPSV is between the two rear brakes. (correct me if im wrong) How come this is not bled after the two rears and before the 2 fronts?

 

As that is how the FSM (BR-6) states to bleed the brakes, if you didn't remove or drain the MC, then you bleed it first, but for strictly bleeding the brakes, the above is the order.

 

Sorry to revive an old thread. How critical is it to bleed all five points? I ask because, I just put the Tundra calipers on my 97 4Runner, and I was wondering if just the front calipers can be bled, or if it is critical to bleed the rear before the front as well as the LPSV?

Thanks.

 

Again with the old thread post:

I havn't looked at it too closley yet, but if you swap out your LSPV for an adjustable proportioning valve when doing a rear disc swap, does it still need to be bled?

 

It may be proper to bleed the LSPV valve, but I personally have never had to, and I have bled alot of 'em

 

If you clamped your hoses before disconnecting them, you should be OK without bleeding the rears. If you didn't clamp them, as fluid drains out, air can make its way into your line, and if a bubble develops in the fluid it will work its way upwards. If left long enough, I suppose it may end up in your MC, requiring you to bleed that and your rear lines. That is why I always either clamp the hose before disconnecting it, or plug it as soon as I disconnect it.