I have a 89 Toyota V6 4x4.

My brakes locked up on me. So when I went to bleed the brakes I noticed that there was only pressure the first time the bleed screw was opened. The consequent times on the same side resulted in brake fluid seeping out (i.e., like when you urinate and you are almost completely out). This happens on all fours sides.

The brakes locked up on me while driving on the freeway at 65 mph. I didn't realize my brakes were locking and I kept on flooring the car thinking my car was losing power?

My brake pedal seems fine and does not sink to the floor.

Has anyone experienced bleeding there brakes and find that there is no pressure after the bleeding screw has been initially released? If so, I would appreciate the identification of the issue and the resolution.

Thanks in advance!

 

When you bleed the brakes, are you pumping up the pedal, and holding pressure on the pedal while someone else opens the bleeder valve?

Does the pedal sink to the floor when you open the bleeder?

Bleeding the brakes is to remove air from the system, which usually leads to a soft pedal that may go to the floor, and crappy brakes, not locking the brakes on.

 

Mark, thanks for the reply.

"When you bleed the brakes, are you pumping up the pedal, and holding pressure on the pedal while someone else opens the bleeder valve?"

Yes, the brakes pedal is pumped -> held -> while someone bleeds.

"Does the pedal sink to the floor when you open the bleeder?"

Yes, the pedal sinks to the floor when bleeder is opened.

"Bleeding the brakes is to remove air from the system, which usually leads to a soft pedal that may go to the floor, and crappy brakes, not locking the brakes on."

I hope I didn't imply that I locked the brakes after bleeding the brakes. However, once the brakes locked, I bled the brakes and this remedied the brakes from locking.

I know that simply bleeding the brakes is NOT the solution to my problem. Thus, I am looking to find the root cause of the issue. Any more insight into the problem is appreciated.

 

Ok, you bleed brakes like I do. I don't know why your brakes locked up, but I'd give them a good inspection at all 4 wheels. The rear drums(if you have drums) have more moving parts to mess up, so I'd pull the rear wheels and the drums to inspect. I'd also look closely at the fronts, and make sure the calipers and pads are ok.

I haven't had anything happen like this, but wasn't sure from your initial description whether you were bleeding the brakes properly.

Mark