Brake System Related:
* Caliper Piston Sticking: Even brand-new calipers can have sticking pistons. This is the most likely culprit. The piston might not be retracting fully, keeping the brake pad constantly pressed against the rotor. This is exacerbated by heat.
* Caliper Bleeder Screw Issues: Improper bleeding of the brakes can leave air in the system, affecting pressure and potentially leading to a locked caliper.
* Brake Line Restriction: A kinked, partially clogged, or corroded brake line to the right front wheel could restrict fluid flow, preventing the piston from retracting. This is less likely given the recent repair, but possible.
* Master Cylinder Problem: A faulty master cylinder could be sending uneven pressure to the brakes, although this would likely affect more than just one wheel. However, if the master cylinder was already failing prior to the repair, it could be exacerbated by the new components.
* Brake Hose Issues (Flexible Hose): A collapsed or internally restricted brake hose leading to the front right wheel could also prevent proper retraction.
* Incorrectly Installed Caliper: While less likely given that you did the repair yourself, it's possible the caliper was installed improperly, interfering with its proper function.
Related to the Pre-Repair Left Pull:
* Wheel Bearing: A bad wheel bearing could have caused the left pull, and if the problem wasn't fully addressed during the repair, it could indirectly contribute to brake issues. A seized bearing might put extra stress on the brake system.
* Suspension/Steering Component: A problem with a steering or suspension component (tie rod, ball joint, etc.) on the left side could have put added stress or binding on the right side, affecting brake function. The prior left pull might hint at this.
Troubleshooting Steps:
1. Visually Inspect the Caliper: Start by carefully examining the right front caliper. Look for any signs of binding or sticking. Try to manually push the caliper piston back in. If it's difficult or impossible to push it in smoothly, the piston is likely sticking.
2. Check Brake Fluid Level: Make sure the brake fluid level in the master cylinder reservoir is correct. A low level could indicate a leak somewhere in the system.
3. Bleed the Brakes: Bleed the right front brake line thoroughly. Air in the lines can cause problems.
4. Inspect Brake Lines and Hoses: Check all brake lines and hoses for kinks, damage, or corrosion, paying close attention to the lines leading to the right front wheel.
5. Check Wheel Bearing: Ensure that the wheel bearing is spinning freely and without play.
If you are not comfortable working on your brake system, take it to a qualified mechanic immediately. Brake failure is serious and can lead to accidents. Don't drive the vehicle until the issue is resolved. The combination of the pre-existing left pull and the new brake problem suggests a deeper underlying mechanical issue needs investigation.