Does this just affect the right front, or any other brakers too?
There's additional potential causes to this for import models, but for yours, given what you've done already, this is likely to be caused by something holding the brake pedal down a little, or there's an issue with the master cylinder and / or the pushrod coming out of the power brake booster.
The next time this occurs, stop on a slight incline, place a block about a foot downhill of one tire, shift to neutral, then loosen the soft metal nuts on the steel lines leaving the master cylinder, then see if that lets the brakes release. If it does, you're likely to see a little spurt of brake fluid by those nuts.
If that doesn't let the brakes release, tighten those nuts, then crawl underneath and open the bleeder screw on the right front caliper. We need to see where the brake fluid is being trapped. Opening the system at various places will help us do that.
Let me know what you find.
Sunday, April 16th, 2023 AT 7:04 PM