What it Does
The brake hose provides a flexible attachment between brake components that are secured to the body and chassis of the vehicle. For example, brake hoses are used as flexible connections between the hard brake lines that run under the vehicle and the brake calipers that are attached near the wheels.
Why This Matters
These hoses are used to route and hold hydraulic pressure, which is what the brake system works with to slow and stop the vehicle. Brake hose failure can result in brake fluid leakage. Hose failure can also result in sudden loss of brake system pressure (or inability to develop or hold that pressure), and this can make it more difficult (or even impossible) to stop the vehicle.
Possible Problems
Internal rupture with leakage:
A rupture like this will allow leakage of brake fluid and will impact the ability of the brake system to hold pressure. This would be a rupture of the internal core assembly of the hose.
Internal rupture with no leakage:
A rupture like this will not show external evidence, but it can function like a check valve that holds fluid pressure in one direction. This results in excessive heat and premature wear because the affected brake assembly never fully releases. This condition also increases the risk of brake fluid boiling with resulting loss of brake force.
Restriction:
Brake hose restrictions can both limit and delay brake apply force and also cause pressure hold on brake assemblies. Pressure hold results in excessive heat and premature wear due to the brake assembly not fully releasing. This condition also increases the risk of brake fluid boiling with resulting loss of brake force.
Leakage:
Hose leakage will result both in fluids loss and the need to service the brake fluid due to absorption of water moisture. (Water moisture gets access to the fluid via the leak point.)
Recommended Parts Brands
- Manufacturer Genuine/Factory Grade.
- Case by case decision on aftermarket parts.