Bleeding of brake lines is a procedure to remove the air bubbles from the hydraulic brake system with fluid removal. However, you can remove the air without removing the old fluid by pedal compression.
How to Get Air Out of Brake Lines Without Bleeding? You can get air out of brake lines without bleeding by lifting the vehicle, approaching the bleeder, and removing bolts. Next, attach the hose pipe, regulate brake pressure, clean screws, collect the fluid and stop external airflow.
Several people remove air bubbles without bleeding the brake lines because it is a time-consuming, unclear, and complicated procedure. These lines require a standard fluid flow to avoid friction.
- 1 What is the method to get air out of brake lines without bleeding?
- 2 Why would you get air out of brake lines without bleeding?
- 3 Cost and time required to remove air from brake lines
What is the method to get air out of brake lines without bleeding?
Generally, insufficient bleeding leads to reduced performance. You can remove the air from flow passages with the following method.
Lift the vehicle and approach the bleeder
With a hydraulic jack and plastic block, increase the height of your car frame. Hold the bolts of the tires; attach a wrench over them and release them from the axle.
With a soft brush or duster, clean their attachment points. The cleaning is necessary to wipe the grease.
In these conditions, use compression to dry the surface. A bleeder comprises a valve and screw to carry out the bleeding.
With the valves, the trapped air bubbles can escape. In this procedure, find the screw of your bleeder on the back side of the caliper.
The rear side of the caliper is a drum wheel cylinder that supports the bleeding activities. Access the valve and pull the rubber cover from the screw.
Remove bolts and attach a hose pipe
Purchase a box end wrench, which is compatible with the bleeder screw. Adjust the wrench on the top of the screw and rotate it anti-clockwise.
Due to corrosion, the screw resists rotational motions. On the end of a brake line, find the bold of the bleeder.
It has a cylindrical shape and works as a plug. It can release the internal compression of the brake lines.
Loosen the bolt with the wrench, hold it with your fingers and pull. On the line, adjust a pipe or tubing.
Push it towards the valve of the bleeder with a wrench. Select a long tubing to approach the vehicle from a distance.
Regulate brakes and clean screws
Take the help of a friend or professional to push the brakes in the downward position. Due to excessive pressure, a small amount of fluid can leak out of the line.
You can remove and flush the dirty liquid and swap it with the new one. In no-bleeding activities, stop the fluid leakage from the lines and store the liquid.
Also, ask your friend to press the brake pedal after specific intervals. Due to external pressure, the pipe can collect and remove the bubbles.
You can collect the leaking liquid in a bucket or plastic container. Then, stop pressing the pedals and reduce the compression on these passages.
Pull the pipe out of the valve assembly and clean the bolt of the bleeder. Use a soft cloth to wipe the fluid, dirt, and grease.
Stop entry of air
Remove all the air from the brake lines while keeping the fluid secure in the hose. Then, fix a wrench on the screw of your bleeder.
Tighten the bolt and search for the air in the liquid passages through the pedals. In this way, no further air can trap inside these passages.
With the clutch clamps, attach the lines to the frame of your car. You can apply a similar technique on all tires of the vehicle.
You can repeat a similar procedure for all four tires of your car. Check the performance and condition of passages to prevent excessive fluid leakage.
It can protect against the penetration of air in these passages. After its removal, you can add liquid to the reservoir to stabilize the wheels and hydraulic system.
Why would you get air out of brake lines without bleeding?
It is better to remove the air from the brake lines to prevent the failure of the hydraulic stop system. The following are a few significant problems.
Reduce compression due to air
Tiny bubbles of the air combine to make giant bubbles. They block the passages in the brake lines.
Moreover, they can change the liquid flow, which reduces the compression. The lubricant cannot flow between the pedal and flow passages.
Also, it can cause liquid leakage, which reduces the pressure of the master cylinder. The seal cracks and leads to soft and vulnerable brakes.
It is dangerous for the hydraulic system, leads to its sudden failure, and causes accidents. In addition, the vehicles become uncontrollable due to reduce pressure and stability.
The brake pump produces bubbles
The master cylinder is the pump of the hydraulic brake system. It can push and regulate the fluid for standard flow and pressure.
The Master cylinder can maintain a constant liquid flow in the built-in passages. They have a particular circuit that malfunctions due to internal leakages.
Due to leaking areas, it enters the system and approaches the pump. In addition, the master cylinder produces more bubbles due to internal compression.
It is dangerous for the pump and hydraulic system. Instead, keep the liquid inside the hose and remove air from the lines with the pressurized technique.
Failure of brake system
The high temperature of the hydraulic system produces excessive heat. As a result, it boils the liquid inside the passages.
Due to the boiling effect, the system produces internal steam, which causes air bubbles in these flow passages.
A group of these bubbles interferes with the pressure flow. As a result, you cannot use the hydraulic pedals.
The vehicle does not show a response to the input signals. As a result, the steering wheel, axles, and tires become uncomfortable.
It leads to the sudden rolling of the car and results in fatal events. In addition, the internal heat causes seal cracking, which leads to leakage.
Through the holes, air enters, and fluid flushes out. Due to excessive friction, the drums and discs break.
They cannot provide enough force to the tires due to internal wear.
Cost and time required to remove air from brake lines
You can remove the air from brake lines for about $82 to $99. Sometimes, the cost includes the expense of fluid bleeding.
You can consult a mechanic at the dealership to assess the procedure cost. The labor cost is around $85 to $90, which does not add taxes and additional charges.
It is a time-consuming procedure for an untrained beginner. For these procedures, you should know the location of lines on your vehicle.
On most cars, you can find them on the firewall for the driver’s side. They mount underneath the vehicle, and you can locate them in the engine.
However, the procedure consumes around 28 to 29 minutes and does not include the bleeding time, which is 43 to 44 minutes.