The piston is stuck or malfunctioning
Cracks in calipers due to overheating
Leakage of bleed screw due to corrosion
If you check all the brake calipers and find that only one is not working, you still need to replace the brake calipers in pairs (on the same axle).
\n\n
When replacing the brake caliper, you will find that it is basically a simple and straightforward process of removing the caliper from the caliper bracket, removing it from the brake line, and installing a new caliper. However, there are some essential things to keep in mind.
\n\n
Flexible brake lines wear out over time. Like many other parts of your Toyota, time, hot/cold weather, and constant use cause wear. With rubber brake lines, the rubber deteriorates over time and small rubber particles can get into the brake fluid and cause clogging. Rubber brake lines may also expand within the brake lines. This narrows the path of the brake fluid and limits the amount of force the brake can apply. This means that there is not enough pressure to park quickly and safely.
\n\n
Therefore, if you are using old and degraded brake calipers, the brake lines may have the same shape. It's okay to replace them with calipers.
\n\n
When replacing the caliper, air can enter the brake line. This reduces the pressure in the brake fluid and reduces the braking force. This article details why you need to shrink when you replace the caliper.
\n\n
When replacing the caliper, it is recommended to flush the brake system and add new brake fluid as well. Brake fluid is hygroscopic and absorbs water. Old brake fluid often contains water. Water corrodes new calipers faster than clean liquids. Brake fluid flushing is cheap and easy, especially when compared to the cost of replacing calipers.
\n\n
You need to make sure that the caliper bolts are tightened to the correct torque specifications. The caliper is subject to great impact and can loosen bolts if not tightened properly. Loose bolts can damage the calipers and prevent safe operation.
\n\n
If you still can't replace it, send a private message. We are happy to serve you.
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