If you have smoking brakes, you’ll want to inspect thebrake parts. Problems like smoking brakes, sticking brakes, or the car pulling to one side could mean there is a stuck brake caliper. If you have a seized brake caliper causing these symptoms, find out how to inspect and unstick a brake caliper, and how to tell if you’ll need a new one.
What Should I Do If I Have Smoking or Sticking Brakes?
Inspect and Fix the Brakes
如果您有吸烟或踩刹车，则可能需要考虑在固定之前拉开并不要驾驶。吸烟刹车可能是由过度制动或新的刹车片和转子爆发的结果引起的，但是如果您最近没有撞到刹车或最近没有刹车，则可能是由吸烟刹车引起的seized brake caliper.
Driving with the brakes compromised is dangerous. You’ll want to fix this problem as soon as possible. We review how to check if a seized brake caliper is the cause.
Symptoms of a Stuck, Frozen, or Seized Brake Caliper
Smoking Brakes
If the brake pads are stuck against the制动转子and the caliper is unable to push them in and out, the heat from the friction of the brake pad material wearing against the rotor can create smoke.
Sticking Brakes
如果刹车片没有进出，他们会觉得自己在粘在转子上。刹车片可以用粘在一侧更快地磨损brake caliper.
车辆拉到一侧
A car with a seized brake caliper can shift to the side the bad caliper is on. The car can feel like it’s misaligned, and this can happen when the brakes are applied.
How to Unstick a Brake Caliper That Causes Smoking or Sticking Brakes
Steps on how to unstick a brake caliper
- 检查，清洁或更换卡尺幻灯销
如果卡尺滑梯被卡住，并且您必须使用诸如钳子之类的额外工具将其卸下，则可能需要更换或清洁它们。
Inspect the slide pins for wear or damage like scarring, which means they need to be replaced. If they’re coated in debris, clean them.
使用1,000至2,000粒度砂纸清洁，或在制动零件中涂上清洁剂，并用抹布将其清洁，具体取决于它们的脏物。然后用更多的轴承，制动或白色油脂来润滑。重新插入时，请确保幻灯片再次自由移动。幻灯片不应感到受到限制或磨碎。
Tip:If the slide bolt is stuck, loosening it with an impact wrench and a ball peen hammer is one method you can use to remove it. Remove the bolt with the impact wrench while tapping the caliper with the hammer, being careful not the hit the brake line.
- Inspect, Clean or Replace the Brake Caliper Bracket
清洁带有锈渗透剂的制动卡钳支架中的这些销子插入的滑动销孔。将渗透剂喷入卡钳中，然后将干净的滑动销入进和插入以清洁内部。
Thecaliper bracketcan rust underneath the metal brake pad slides/retainers, and it can expand them out and keep the brake pads in the same position. If the pads can’t glide easily on the slides and press the brake rotor, and if they’re stuck in a position where they’re in constant contact with the rotor, you might see smoking brakes.
不锈钢滑梯的制动卡尺上的表面可以生锈并扩展。如果发现生锈和鳞片状的表面，请尝试用钢丝刷清洁该区域，或者如果有很多生锈，则更像是文件，但是如果支架状况不佳，则可能需要替换。
Clean the backside of the brake pad slides that contact the caliper bracket. Before reinstalling the clips, place caliper grease on the mounting surface.
- Test the Function of the Caliper Piston
检查卡尺活塞，看看它是否移动并且不粘。您可以让助手按制动踏板来测试活塞，也可以使用特殊的活塞工具扭动活塞。
如果刹车卡钳活塞损坏，您可以尝试修复它，但是您很可能必须更换制动卡钳。
有关如何检查制动卡钳的更多信息 - Inspect the Brake Pads
If the pads are sticking and you have to use force to remove them like a pry bar, large screwdriver, and hammer, this is a sign there is a problem with the brakes. You might have to alternate between tapping the top and bottom of the pad with a screwdriver and hammer to loosen and remove them.
Check thebrake padsfor scoring. If the caliper slide pins are stuck, it can leave marks on the and crack them brake pads from pressing against the rotor.
More on how to inspect the brake pads
How-to Videos: Learn More Than How to Fix Smoking or Sticking Brakes
Learn how to do more than fix an unstick a brake caliper. Find out how to diagnose and replace brake parts, suspension parts, steering parts, and more with分步说明from experienced mechanics.
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