Acura Brake Problems

Most Acura models are equipped with power assisted brake systems that are hydraulically operated. All front brake systems are disc brakes. The rear brakes can be either disc or drum, depending upon the model type. However, before assuming that a brake problem exists, ensure the tires are in good condition and properly inflated, the front end alignment is correct and the vehicle is not loaded with unnecessary weight.

Vehicle Pulling

If your vehicle pulls to one side while braking, it could be related to one of the following brake problems: Restricted brake lines or hoses, malfunctioning drum brake or caliper assembly, loose suspension parts, loose calipers or excessive wear of brake shoe or pad material or disc/drum on one side.

Noises

If a high-pitched noise, such as a squeal, is heard when the brakes are applied, the front disc brake pads are most likely worn out. The noise comes from the wear sensor rubbing against the disc and the brake pads should be replaced as soon as possible. If a chattering or rough noise is heard while braking, it could be related to excessive lateral run out, uneven brake pad wear or defective discs.

Excessive pedal effort or travel

When applying the brake, a number of problems can lead to excessive pedal effort being required to stop. These problems include malfunctioning power brake boosters, partial brake system failure, or excessively worn brake pads or shoes. If new pads or shoes were recently installed, it may take awhile for them to be seated against the disc or drum. The piston in caliper or wheel cylinder could also be stuck or sluggish; or the brake pads and shoes are contaminated with excess oil or grease. If the brake pedal travel is excessive, you could be dealing with a brake system failure, insufficient fluid in the master cylinder or air trapped in the brake system.

Dragging or grabbing brakes

If you find that your brakes are dragging, it could be related to an incorrect adjustment of the brake light switch, restricted brake lines or hoses or an incorrect parking brake adjustment. Another cause may be that the master cylinder pistons are not returning to the home position correctly. If you find that the brakes are grabbing or unevenly braking, then your Acura could have a malfunctioning proportioning valve or power brake booster unit. In addition, you could have a binding brake pedal mechanism leading to the grabbing.

Spongy or low resistance braking

Another braking problem that may be experienced with your Acura is a spongy brake when it is depressed. This is generally caused by air in the hydraulic lines, a defective master cylinder or loose mounting bolts in the master cylinder. If there is little resistance when braking, or the brake pedal travels to the floor, it could be related to the fluid level in the master cylinder reservoir caused by a leaking caliper piston. It could also be related to loose, damaged or disconnected brake lines.