Brake issues

Hello i have a toyota Hiace. Happens often when im draggiing on the brakes, then press harder to stop, something makes a screeching noise and feels like it pulls left some. Not pads, not drums, replaced speed sensor, replaced ABS modulator. No lights on dash board. help!

Hi Eddie,It sounds like you've already ruled out a few potential causes. Since you've replaced the speed sensor and ABS modulator, it could be related to the brake calipers or the brake fluid. Have you checked the condition of the brake calipers and the brake fluid level and quality? Sometimes worn-out or sticking calipers or contaminated brake fluid can cause similar issues.Hope this helps