What is a Brake Hose? Role, Types, Lifespan, FAQs & More

Brake hose is a very critical component in your car’s brake system. With its help, you can stop your vehicle and make sure your safety on the road. If any issue occurs in it, this can cause various problems.

So in this article our discussion will be about what is a brake hose, its types and failure symptoms in detail. You will also know how to replace the damaged brake hose by yourself in emergency situations.

What is Brake Hose?

Brake hose is a flexible hose that is used to transfer brake fluid from your car rigid brake lines to the calipers or wheel cylinders. It is a reinforced conduit which connects brake pipes in the vehicle frame to the calipers. Due to the flexibility, this hose can handle the suspension and steering movement easily.

That is why you can drive on rough and bumpy roads confidently. These hoses also help to maintain the flow of pressurized brake fluid in your vehicle.

Brake Hose Material

What are brake hoses made of? They can be formed by reinforced rubber, teflon, woven fabric, nylon or stainless steel wire mesh. The composition of brake hoses depends on your vehicle’s performance, operating pressure and environmental conditions.

Mostly, brake hoses have three layers which are inner layer, reinforcement layer and outer layer. All of them can be made from different materials which depend on the hose type. Some common materials which are used in the formation of brake hoses are as follows.

Brake Hose Function in Automotive Brake System

There is no doubt that brake hose is a small part in your car engine. But it plays an important role in your car’s automotive brake system. This system consists of various components that work together to stop your vehicle. Brake hose helps to transfer pressurized brake fluid from brake lines to the calipers or wheel cylinders in this system.

Now, we tell you how brake hose work and help you to slow down your vehicle.

• As a driver, when you press the brake pedal to stop your car, the master cylinder pushes the brake fluid in the system under hydraulic pressure.
• This fluid passes through the rigid brake lines and enters the hoses. From which, it transfers to the brake components that are located at each wheel.
• These flexible brake hoses can handle the suspension and wheel movement of your car easily. They can bend according to the operation.
• At moving calipers and wheel cylinders, this fluid causes the brake pads or shoes to create friction which stops your car.
• Additionally, brake hoses are designed to limit expansion under high hydraulic pressure. This thing provides you an active brake pedal which works effectively.

3 Main Types of Brake Hose

You can find brake hoses in several varieties that are different on the basis of their material, construction and performance.

1. Rubber Brake Hose

It is the most common form of brake hose, which gives you a number of facilities. However, it helps to carry brake fluid safely.

Material: It is made of synthetic rubber such as EPDM and nitrile. It is also reinforced with textile layers which can handle high pressure.

Performance: Rubber hose provides you flexibility that it can absorb suspension movements efficiently.

Lifespan: It can last up to 3 to 5 years. But its exact time period depends on vehicle use and hose condition.

Best for: You can use it in your passenger cars, light trucks and standard factory braking systems.

2. Stainless Steel Braided Brake Hoses

These are PTFE braided hoses which have excellent resistance against pressure, abrasion and external damage.

Composition: PTFE (Teflon) makes the inner liner, which is wrapped by a reinforcement layer such as stainless steel wire.

Function: In case of high fluid pressure, it controls the expansion of hose. As a result, your brake pedal performance increases.

Longevity: Depends on hose construction and operating conditions; they are useful for 8 to 12 years.

Applications: Stainless steel hoses are suitable for high-performance vehicles, motorcycles, and motorsports.

3. Nylon Braided Hose

Nylon braided hose is a flexible and lightweight fluid line compared to stainless steel hoses. That’s why you can easily install it in your tight engine bay.

Material: Its inner tube is formed by nylon or PTFE (Teflon). Then it is covered by high-tensile and stainless steel wire.

Performance: The textile braid makes it resistant to pressure. Plus, it can withstand under wear and oil contact.

Service Life: Its operating range is approx. 4 to 6 years. It also varies with temperature, hose design and environmental exposure.

Used For: It is ideal for light-duty automotive, motorcycle and low-pressure fluid routing systems.

Our Advice: You need to be careful during the use of nylon lined brake hoses in your car. Because they do not withstand extremely high temperatures and can expand when the brake gets hot under heavy use. In fact PTFE brake hoses can maintain their shape in this situation.

Collapsed Brake Hose Symptoms

If your car brake hose is not working properly, there is a chance that something went wrong in your automotive brake system. In case of damage to the brake hose, you can find the following signs.

• Brake Pedal Feels Unusual: Sometimes, you feel that your car brake pedal becomes too soft instead of firm. As a result, you have to press it more deeply to slow or stop the vehicle. A damaged brake hose can also block the flow of brake fluid which causes the brake to remain applied.

• Drag and Pull of Vehicle: In case of applying brakes, your car can move or pull to one side. It is due to the reason that the brake fluid is not reached to the system properly. This causes the caliper to stick and brakes not removed even when you lift your foot from the brake pedal.

• Brake Fluid Leak: If you find puddles of brake fluid under your car, it is a clear clue that your vehicle brake hose is not right. It can crack, collapse and damage. This bad hose can reduce the level of brake fluid in your automotive brake system. As a result, you have to face various problems from which brake failure is prominent.

• Wheel and Brake Overheat: One of the main symptoms of your car brake hose damage is brake resistance. It makes the brake components such as rotor, wheel and brake pads become hot. In severe conditions, they start to produce brake dust and give off a burning smell.

• Reduced Fuel Economy: If your car brakes are not applied properly, it may create extra resistance on the wheels. To keep your drive smooth and continue, the engine works hard. That’s why the engine consumes more fuel than normal. The performance of your car motor can also decrease.

How To Test Brake Hose?

First of all, you have to inspect the brake hose for cuts, cracks, leaks and damage. Then you can perform a pressure test. For this process, you need a helper who holds the brake pedal firmly. So that you can watch the swelling along the hose. 

If your car wheel is locked, lift it off the ground and loose the caliper bleeder screw with a wrench.In case of pressure release and wheel spin easily, it means that your vehicle’s brake hose inner lining is failing. Due to the caliper stuck, the wheels do not move. After checking it, you should bleed the brake system.

Can You Drive With a Broken Brake Hose?

Not at all. You should never drive with a broken or leaky brake hose. Because it can cause sudden loss of hydraulic pressure which leads to brake failure. As a result, you are not able to slow or stop your car in an emergency situation. That’s why it is risky to continue your journey. In this situation, you should take it to a mechanic as soon as possible and change the brake hose if it is needed.

How To Replace Brake Hose?

If you want to change damaged brake hose yourself, you need to have experience with replacement. Plus, you have free time and patience. You should also have basic hand tools for this process. Then you can follow the following steps.

Step 1: First of all, you should park the car on a plain surface. Then jack up your vehicle and make sure it is firmly fixed on the jack stand.

Step 2: You have to remove the wheel so that you can get a clear view of the brake caliper and hose. Also place a drain pan under the work area to catch brake fluid.

Step 3: Now, you need to spray penetrating oil on the metal fitting and caliper connection. It helps you to remove rust from them.

Step 4: To loosen the brake line nuts, you have to use a line wrench. However, use pliers to remove the horseshoe from the brake hose.

Step 5: Then, you can disconnect the brake hose from the caliper. Always plug the metal brake line. It helps to minimize the fluid loss.

Step 6: After this, you can attach a new brake hose to the caliper. For this process, you have to install fresh copper crush washers.

Step 7: You have to fix the upper bracket with the retaining clip and thread the metal hard line into the hose fitting. You can do this by using your line wrench.

Step 8: You should route the hose carefully through the mounted brackets. Make sure there is no twist or rub against wheel parts.

Step 9: Now, refill the master cylinder reservoir with fresh brake fluid. Always check its level in your vehicle. If it runs dry, more air can enter the system.

Step 10: To remove trapped air during refilling, you have to take a clear pipe and attach it with a caliper’s bleeder valve. While the other end is fixed with a container.

Step 11: After this, you can use a vacuum bleeder or pump brake pedal to remove extra air from the brake brake system. Close the valve when needed.

Step 12: At the end, put the wheel back on and remove the jack stand. You have to press the brake pedal until it feels firm. Now, start to drive at slow speed to check the brakes work.

Which Brake Hose is Right For Your Vehicle?

You have to select the brake hose according to your car’s model, make, use and material. For this process, you can consider factors given below.

• If you drive your car daily, you can choose the rubber brake hose for your vehicle. It provides great flexibility and absorbs all shocks easily. Plus, this hose is also cost-effective.
• For heavy duty and performance driving, you should select a stainless steel braided hose. It can withstand high pressure and does not expand under load. It also offers you durability against debris.
• You should match the length of the brake hose with the existing hose. Always buy the required length of hose. It protects the brake hose from rubbing and twisting.
• You must look for a high-quality brake hose. Additionally, check that the product meets safety standards. For this process, you can also see the Department of Transportation (DOT) mark on it.
• Always match the thread type, fitting angles and connection style to your specific wheel setup. You need to get fittings that are made from corrosion-resistant material and suitable for your vehicle’s brake system.

Brake Hose vs Brake Line

Sometimes, you are confused between brake hose and brake line. Because both are used to transfer pressurized brake fluid from the master cylinder to the wheel brakes. But they are different in some aspects.

Brake Hose Manufacturers

Are you a B2B bulk buyer or distributor and want to buy brake hose in large quantities? We advise you to choose a reliable company that provides you with durable products. RONTEIX is a professional manufacturer of brake hoses. We have 50+ skilled employees and 10 engineers who prepare hoses according to international standards such as ISO 3996 and SAE J1401. 

We also offer brake hoses based on your customized needs of size, length and material. You can contact us anytime and our team will guide you in selecting the right brake hose. We also welcome all your inquiries related to brake hose production and quality control requirements.

FAQs

Are brake hoses universal?

No, all brake hoses are unique in that each vehicle requires a specific hose that matches its braking system. Every vehicle has its unique brake hose length, thread size, fitting type and pressure rating.

How many brake hoses does a car have?

Most modern cars have four brake hoses. These can be rubber hoses or stainless steel hoses. They are located on each wheel of your car. They are helpful in steering and suspension movement.

Can a bad brake hose cause a caliper to stick?

Yes, due to a non functional brake hose a caliper will stick in most cases. It is due to the reason that the bad brake hose restricts the flow of brake fluid which prevents pressure to release properly after brake. As a result, the caliper remains locked.

How long do brake hoses last?

Rubber brake hoses can last around 6 to 10 years or 60000 to 100,000 miles. But it is not a fixed time period. Because rubber can degrade with the passage of time. Plus, climate, age and driving habits can also affect it.

Final Words

Hence, we conclude that brake hose is a very important part of your vehicle’s braking system. If it is working well, it will easily handle high pressure, heat, movement and different road conditions. But after years of driving, this tube can face physical damage as well. So you should do regular inspections and replace if you notice things that we told you above.