Front brake pad replacement?

Welcome to 2CarPros.

The side that has the uneven wear most likely has an issue with either one of the pads is frozen in the mount or the caliper slide pins are not free. The slide pins must be clean and lubricated so they move easily. If they aren't, one pad will wear faster than the other. Also, often times rust will develop under the brake pad retainer clips causing the retainer to swell against the pad and prevent it from moving. So here is what I need you to do.

I attached a pic below. I highlighted the caliper pins / slides I'm referring to and circled the caliper mount where the brake pads sit. Here is what I want you to do on that side. First, remove the caliper from the mount. Try moving the slide pins in and out. They should be free and easily moved. If they aren't, remove them, clean them and inside the caliper mount, and use brake grease to lubricate them. Reinstall and confirm easy movement.

If that isn't the issue, I want you to remove the brake hardware where the pads sit. Take a file and clean any debris or rust on the steel caliper mount where the brake pads sit. Next, clean the pad retainers (see pic) and then reinstall the pads. Do they move easily in the mount? They should be snug but easy to move.

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Next is the side that wears the pads too fast.

First, safely lift that wheel off the ground. Make sure the parking brake is on, rear tires are blocked to prevent movement, and place the transmission in neutral.

Turn the wheel. Is there excessive drag? Next, have a helper press the brake pedal so the wheel no longer turns. Have the helper release the pedal and you check to see if the wheel turns right away. If it doesn't, first follow the procedures I mentioned above to make sure it isn't one of those two issues. If that isn't the problem, I want you to do the following.

Remove the wheel. Make sure you are able to turn the rotor. Have the helper press the brake pedal and release it. If you aren't able to turn the rotor which indicates the brake isn't releasing, open the bleeder on the caliper. Does the rotor then turn?

If it does, replace the rubber brake hose to that caliper. If it still doesn't and you know the two items above aren't the issue, replace the caliper again. The piston is frozen or partially frozen.

Here are a couple links you may find helpful:

https://www.2carpros.com/articles/brake-caliper-replacement

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

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Let me know what you find and if this helps. If you have other questions, feel free to ask.

Take care,
Joe