Brake System

What is the ABS cut-off speed?

The Anti-lock Brake System (ABS) does not function under 6mph (10kph).

The ABS system performs a test the first time the vehicle reaches 4mph (6kph) after starting which produces a mechanical noise. This "click" is normal.

I hear a squealing noise coming from my front brakes

It is an indication your brakes are nearing their wear limit. The squeal tab on one of the pads is just barely dragging on the rotor and vibrating to produce the sound. When you apply the brakes you're deadening the vibration and the sound goes away. As the brakes heat up the clearance between the tab and the rotor increases a smidge and it doesn't drag with the brakes off and stays quiet.

What do stainless steel, braided brake hoses do?

hey contain the hydraulic pressure to a better degree than stock rubber hoses (thanks to the braiding, they don't expand as much when the brakes are applied). This gives a firmer pedal feel and increased pressure at the brakes, for better stopping.

The braided covering also serves to protect the hose against sharp objects and abrasion.

They typically come in sets of three - two for the front (one for each wheel) and one for the rear (located centrally on a "T" connector).

What type of brake fluid does the Xterra use?

Any decent DOT 3 brake fluid can be used.

Always use fresh brake fluid and never re-use old brake fluid! Keep container tightly capped when in storage.

What are the minimum tolerances for brake pads/shoes?

The front brake pads minimum thickness is 2mm and the rear brake shoes is 1.5mm. Any less and they must be replaced. Inspect regularly at 20k mile intervals.

Do not allow brakes to go unserviced or you will cause additional wear at additional cost to fix (such as scoring the rotors, typically happening at the stage where the front brakes squeal and screech when applied).

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