Why are my Front right and back left brake calipers are sticking? 2007 Hyundai Tucson

Front right caliper wasnt ingaging now its stuck and back right was stuck, changed brake fluid and bleed lines but didnt help

My car has 140000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there – you may have [brake calipers that are sticking}(https://www.yourmechanic.com/article/top-10-brake-system-issues-every-car-owner-needs-to-know), and causing the brakes to drag. Or, you may have a residual brake pressure valve that is not releasing brake line pressure like it should. Modern brake system engage brakes diagonally – one brake circuit engages right front and left rear, the other circuit engages left front and right rear. If your brakes are dragging on a diagonal pair, the problem is more likely the residual pressure valve. I recommend a brake inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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It Could Be the Calipers. One of the most common causes of sticking brakes is simple: stuck brake calipers. Most vehicles use disc brakes, which include brake pads, rotors, and calipers. If the brake caliper gets stuck, you`ll notice a sticky sensation in your brakes.
Front brakes handle most of the braking force and build up most of the friction heat. Rear brakes take on less braking force but provide stability to prevent spin-outs and rollovers.
This is usually caused by a bent caliper mounting bracket or severely warped rotors and pads. To correct, visually inspect the alignment between the caliper and rotor.
Let`s discuss the why and how of brake usage. Bikes today come with a front (usually disc) brake (or set of brakes) that is operated by a front brake lever on the right handlebar grip and a rear (usually disc) brake that is controlled by your right foot. The brakes can be applied separately or together.
There are several reasons you might have a sticking caliper. Here are the most common causes. Caliper Slides – the slides located in the caliper can freeze due to lack of lubrication, corrosion or debris build-up. When the caliper cannot slide properly in or out, this causes the brake caliper assembly to stick.
One cause for a stuck caliper is if the brake pad shims get caught, or debris builds up in between the spaces. If this happens, the pads will not be able to slide in and out correctly, causing the caliper to stick. A mechanic will be able to clean the brake pad shims, or replace the brake pads with new ones if needed.
No , if you notice the way they sit on the front and back disc`s they are different plus the front calipers are larger than the rears.
Issues with the surface of the rotor

In some cases, brake rotors can wear unevenly, causing what`s known as Disc Thickness Variation (DTV). DTV can be caused by different factors, such as sticking calipers, rust, slamming on the brakes frequently, or dirt and debris getting stuck between the pad and the rotor.

A bad ABS module can behave erratically, making your brakes lock up even under normal braking. You might even notice unusual behavior from the brakes, like random clicking noises.
In the U.S., the law requires that all bikes are sold with the left hand controlling the front brake, and the right hand the rear brake.
Well, first, you absolutely should replace both front or both rear brake pads at the same time. Unless something`s really wrong, one should be wearing out at about the same rate as the other.
The calipers will typically be located on the opposite side of the steering rack. To allow for the engine to be further back (and thus better weight distribution, the rack may be found up front, forcing the brakes to be closer to the center of the car.
If the piston is stuck within the caliper, or the pad is stuck, the car can feel down on power (as if the parking brake is on). You may also notice the car pulling to one side with the steering wheel pointed straight, when cruising and not applying the brake. As you drive, the seized brake may also get hot – very hot.
Yes, on some vehicles, the caliper can be installed on the wrong side. Because you can`t bleed off the air that builds at the top of the caliper, the bleeder screw will now be on the bottom, and you`ll never have a firm pedal.
This may be as simple as following an arrow – many directional pads use either a letter, indicating which side of the vehicle the pad should be fitted to, R for the right-hand side and L the left, or an arrow showing the rotational direction of the disc and hence the direction in which the pad should be fitted.
But most caliper designs are similar left to right — they often just differ in where the bleeder screw is located.
If this is the case, you can hone the cylinder; clean or replace the piston; and replace the seal to fix it. It`s called rebuilding the caliper, and it`s an easy and inexpensive way to fix uneven brake wear on a car. However, if you don`t have the right equipment or knowledge, this can take a long time.
While their composition differs, disk and drum brakes both operate the same way to accomplish slowing down or stopping. When the brake pedal is depressed, hydraulic pressure is distributed to the proper brake components forcing the wheels to slow or stop. Front brakes play a larger role in stopping over the rear.
Drum brakes are often applied to the rear wheels since most of the stopping force is generated by the front brakes of the vehicle and therefore the heat generated in the rear is significantly less.
How to tell whether your brakes are drum or disc. To double-check, look through one of the holes in the top of your front wheel. If you see a shiny smooth metal surface, that is your disc rotor. However, if you see a rusty and not smooth round surface, that`s your brake drum.
Whenever your brakes start sticking, it means the brake pads are being held against the rotors even if you release the brake pedal. This is going to mean they`ll wear down much faster than they should as your rotors keep moving and you`ll have to get new brake pads on just that wheel sooner than you normally would.
Can you continue to drive with a seized brake caliper? In short, no – you cannot continue to drive with a damaged brake caliper. Doing so can be extremely dangerous for both your vehicle and the safety of yourself and other road users.
There are two pedals in an automatic car. The accelerator is on the right. The brake is on the left. You control both pedals with your right foot.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Why are my Front right and back left brake calipers are sticking? 2007 Hyundai Tucson
ANSWER : Hi there – you may have [brake calipers that are sticking}(https://www.yourmechanic.com/article/top-10-brake-system-issues-every-car-owner-needs-to-know), and causing the brakes to drag. Or, you may have a residual brake pressure valve that is not releasing brake line pressure like it should. Modern brake system engage brakes diagonally – one brake circuit engages right front and left rear, the other circuit engages left front and right rear. If your brakes are dragging on a diagonal pair, the problem is more likely the residual pressure valve. I recommend a brake inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

I have a problem with my Hyundai Tucson 2007, the rear left brake rotor is wearing only half an inch from its center
ANSWER : Hi there. The brake pads contacting only the inner portion of the brake rotor is unusual. It would be important to consider whether the brake rotor was machined or replaced at the time of brake pad replacement. It may be a brake caliper issue although not likely. If the rotor was machined or replaced at the time of brake pad replacement, measure the thickness of the rotor towards the center and towards the outside edge. If it’s thicker towards the center, have the rotor machined. If the problem persists. I recommend having a brake inspection performed by a certified technician in order to have this resolved.

When I put my foot on the brake my back left brake light goes off, when I take it off the brake the brake light comes on
ANSWER : I would suggest trying to disconnect and reconnect the wiring to the rear lights. I have seen these older Toyota vehicles rear lighting short out on the lights themselves due to the way the light circuit was made on the lamp housing. Look at the housing circuit on the light to see if one is touching another, and that could tell you why it is malfunctioning. There could also be a problem with the brake light switch. If you are not comfortable dealing with wires, I recommend getting in touch with a certified mechanic who can look at your brake light issue for you to see what’s going on.

Horrible grinding sound after recently replaced front and back brakes and rotors.
ANSWER : Hi there. Were there shims installed on the old pads? New shims on the new pads? Missing shims can create noise while braking which is why the antiseize worked for a short time. What brand/level of brake pads did your husband install? Usually, the lowest priced pads are the noisiest. The antisieze that he installed is not recommended to be put on brake components as the high temperatures of these parts can cause the lubricant to run and contaminate the pads and rotors. There are specifically designed brake pad shim lubricants designed to withstand these high temperatures; these are the only ones that should be used if needed. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts and a possible safety concern. Your Mechanic has several available technicians that can assist you with a brakes are making a noise inspection.

Brake Pad or Caliper Issue?
ANSWER : It is normal for the front brakes to last about 35k to 40k miles before needing to be replaced. When the brake pads were replaced it should of been noted if the right pads were worn down to 3mm and the left side pads were not. If the pads were wearing even on both sides, then there is not a problem with the brakes most likely. It is normal for the wheels to get covered with brake dust and should be cleaned off at every car wash. If you suspect the brakes are having a problem causing excessive wear or loss of fuel mileage, then have a brake inspection done to check to see if the brakes are wearing normal and not binding. If one of the calipers were binding then you may notice a pull to one side or the other.

I blew the right front caliper on my dodge ram (2001) 1500 v6 magnum. I have no oil coming out of any brake front or back. Hiw do
ANSWER : I your brake master cylinder cannot produce any pressure or build it up after pumping brakes several times then you need to replace the master cylinder and put fresh fluid in system. Then vacuum bleed the system starting with right rear then left rear and then right front and then last left front wheels. This will purge all the wheels brakes of air.

had to replace rear brake caliper, is parking brake cable just worn out? Cant get it back on caliper!
ANSWER : You should install the brake cable before installing the brake caliper. You may have to turn in the caliper again to get it back over the rotor when installing it. If you want to have this done for you, a technician from YourMechanic can come to your car’s location to correctly install the parking cable (and caliper) for you – just let them know that you already have the parts.

Low brake pedal and anti-lock brakes are not kicking in.
ANSWER : The brake pedal is working to stop the vehicle, but there may be air in the controller unit causing the ABS brakes to not function. I recommend bleeding the brake system from the farthest location from the master cylinder to the master cylinder including the ABS unit. If the brakes are still spongy after a full bleed, then the controller will need to be replaced. If you need further assistance with your brake pedal being spongy, then seek out a professional, such as one from Your Mechanic, to help you.