98 Caravan Brake problems

98 Caravan, The brakes started locking up to a point where I had to pull over to pump the brakes. It appears my son put power steering fluid in the brake resevoir, because we have a leaking power steering pump, he made a mistake. Any way I sucked as much fluid out of the resevoir and bled the brakes many times all wheels. It was fine for a few days, but it still locks up a little and now the brakes were mushy.
Today, I tried to re-bleed the brakes, but nothing was is coming out during the bleeding process when pumping. Is the booster shot?
I am unsure how to proceed.

thanks.

You need to take to a service place that has the brake flushing equipment.
They hook a plate to the top of reseviour and pump brake fluid in under pressure, and open all the bleeders. It is connected to a big container of brake fluid.
Power steering fluid is very sticky, that means it coated the inside of brake system.
How hard did you push your kid's head through the wall?

98 Caravan, The brakes started locking up to a point where I had to pull over to pump the brakes. It appears my son put power steering fluid in the brake resevoir, because we have a leaking power steering pump, he made a mistake. Any way I sucked as much fluid out of the resevoir and bled the brakes many times all wheels. It was fine for a few days, but it still locks up a little and now the brakes were mushy.
Today, I tried to re-bleed the brakes, but nothing was is coming out during the bleeding process when pumping. Is the booster shot?
I am unsure how to proceed.

thanks.
I hate to be the bearer of bad news, but you can bleed the brakes 50 times and it will never be right. The power steering fluid has petroleum byproducts in it. Which will destroy the seals in the master cylinder and maybe the calipers and wheel cylinders. You could be looking at a complete brake job. Good Luck.

Thanks for your replies,

I will first take it in to have it bled and go from there.

I hope the seals are ok, if there is seal damage, wouldn't there be leaks.?

About my son, he is 18 and he is bigger than me now. I still think I can take him though.

It would depend on how much fluid he put in and how far down into the system it went.
It shouldn't leak, but the seals and o rings in the master cylinder may swell up and bind. I doubt it ever made it down to the calipers.
I don't think he could have put much ps fluid in if the brakes were working before.