车（dodge）后轮胎有刮擦噪声，像是卡了金属或石子

[fordtaurus]

车后轮胎有刮擦噪声，像是卡了金属或石子，开了一会消失；第二天又是这样。但从第三天起没有了。请教是否应该去看一下？

 

[masterhong]

建议检查刹车。

车后轮胎有刮擦噪声，像是卡了金属或石子，开了一会消失；第二天又是这样。但从第三天起没有了。请教是否应该去看一下？

是CARAVAN吗？

 

[fordtaurus]

caravan!

真是专家啊！快指点一下去哪里比较好？Canadian Tire特别坏，不想去那。

是CARAVAN吗？

 

[ygzhao]

关注， 我的caravan最近也发现这个问题，噪音很小，右后轮，而且时有时无，一般是早上正常，下班时有噪音，天冷或下雨就没了。

 

[ccc]

后轮胎有刮擦噪声 or 后轮有刮擦噪声?

If 后轮有刮擦噪声, it could be that the piece of metal (I don't know what it is called.) inside next to the rotor got rusted or too close to the rotor. Pull it a bit to the inside.

Brake squeal: This is a high pitched squealing noise, often heard when you are going slow and are not applying the brakes. If it goes away as you apply the brakes, it could be coming from the brake wear sensors. (Also called 'squealers' by mechanics.) They are small bits of spring steel that are attached to the brake pads in such a way that when the pads are about 75% worn out, the sensors start to rub on the rotors, making the noise. GM invented them, and they are one of the best ideas anyone has ever had in the automotive industry. The sound is so scary that you usually go to a mechanic before any major damage is done to your rotors, and before your braking power is compromised, saving you money and maybe your life.

Grinding noise: Although this is one of the nastiest sounds you will ever hear, it often is the easiest to repair. The first thing you must do is learn what is making the noise. Figure out which wheel it is, then, after safely raising and supporting the car, take off the wheel & tire. Hopefully you will see a simple disc brake system, with a rotor, a caliper, and brake pads. Identify the various components. Gently rotate the brake rotor back and forth until you can identify the source of the noise. Sometimes it is just a small stone, trapped between the brake rotor and the air deflector. The faces of the rotor should be smooth and clean. If you see large scaly rusted places on the friction surfaces of the rotor you should replace them. Most of the time new ones cost less than you would guess. If your pads are worn out(less than 3/16 of an inch of friction material left) and you catch it in time, all you have to do is install new brake pads. If the surface of the rotor is damaged, you will have to resurface or replace it.

 

[masterhong]

Dodge Caravan 的后轮不是ROTOR, 而是DRUM.

后轮胎有刮擦噪声 or 后轮有刮擦噪声?

If 后轮有刮擦噪声, it could be that the piece of metal (I don't know what it is called.) inside next to the rotor got rusted or too close to the rotor. Pull it a bit to the inside.

Brake squeal: This is a high pitched squealing noise, often heard when you are going slow and are not applying the brakes. If it goes away as you apply the brakes, it could be coming from the brake wear sensors. (Also called 'squealers' by mechanics.) They are small bits of spring steel that are attached to the brake pads in such a way that when the pads are about 75% worn out, the sensors start to rub on the rotors, making the noise. GM invented them, and they are one of the best ideas anyone has ever had in the automotive industry. The sound is so scary that you usually go to a mechanic before any major damage is done to your rotors, and before your braking power is compromised, saving you money and maybe your life.

Grinding noise: Although this is one of the nastiest sounds you will ever hear, it often is the easiest to repair. The first thing you must do is learn what is making the noise. Figure out which wheel it is, then, after safely raising and supporting the car, take off the wheel & tire. Hopefully you will see a simple disc brake system, with a rotor, a caliper, and brake pads. Identify the various components. Gently rotate the brake rotor back and forth until you can identify the source of the noise. Sometimes it is just a small stone, trapped between the brake rotor and the air deflector. The faces of the rotor should be smooth and clean. If you see large scaly rusted places on the friction surfaces of the rotor you should replace them. Most of the time new ones cost less than you would guess. If your pads are worn out(less than 3/16 of an inch of friction material left) and you catch it in time, all you have to do is install new brake pads. If the surface of the rotor is damaged, you will have to resurface or replace it.

如果声音是从后刹车传出来的，可能是 BRAKE SHOE 的 HOLDING PIN 脱落。
还是需要检查，才能下结论。

 

[masterhong]

对不起，我无法推荐修车的车行，只能自己作出判断。

caravan!

真是专家啊！快指点一下去哪里比较好？Canadian Tire特别坏，不想去那。

我只做技术的建议，等我自己开了车行，我当然会推荐到我这里。

我也不太建议去CANANIAN TIRE 修车。个人看法，仅供参考。