Rt. Ft. rotor warped. Replaced it with new rotor and pads. Did not fix problem. could bearings be damaged?
The Rainier is 2 Wheel drive.Rt.Ft. wheel started shaken about 7 mo. ago.You could hardly notice any vibration. I don't drive the Rainier much. But 2 weeks ago I took it on The freeway. It was so bad I had to get off at the next exit. I replaced Rotor & pads Rt. & Left side.There is not much change.My ? is should I have replaced the hub and bearings also? Could the bearing's & races been damaged by all that shaken. There were no seal's that showed any sign of leaking & there was no noise or smell but it did pull to the Rt. Not real bad. But you could feel it. The a
Experienced mechanics share their insights in answering this question :
Yes, depending on how bad the condition of the warped brake rotors and pads were before you changed them, they could have gotten hot enough to ruin the bearings and races which could cause the vibrating you are describing. You should have a certified mechanic, like one from YourMechanic, diagnose the vibration you’re experiencing. They’ll be able to pinpoint the issue for an accurate repair.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
Problem 1: Warped Brake Rotors
When your brake pads are pressing against a warped rotor, this will cause shaking or vibrations to run through your vehicle. Beyond just the inconvenience of shaking, this can raise safety concerns and create trouble for your brakes.
The source of where the shudder is felt can clue you in as to whether the front or rear brakes are to blame for the shudder. Steering wheel vibrations are often due to an issue with the front rotors while rear rotor troubles will cause vibrations that are felt in the brake pedal.
Even if you just got new brakes installed, vibrations while braking is a sign of a serious problem. It`s possible that the rotors weren`t installed correctly, and an inability for the brake pads to clamp together efficiently is what`s causing the vehicle to vibrate.
The harder you brake, the more fluid pressure builds in the calipers, and the more pressure is applied to the brake pads and rotors. If the caliper or caliper pistons become stuck, it is unable to properly squeeze the brake pads against the rotors, which may cause you to feel some vibrations when you hit the brakes.
For example, if your flywheel`s springs are damaged or broken, then the wheel loses some of the stability that holds it steady. Its vibrations increase and pass down to the pedal. If you have flywheel vibration problems, then you might feel that they get worse when you change gears or accelerate.
1) Your pedal vibrated because the ABS (anti-lock braking system) was activated. If the pedal vibrations (pulsing and groaning noises, too) happened when you e-braked, chances are ABS was activated. ABS prevents your tyres from locking up, which could lead to an uncontrollable skid.
The brake disc developing disc thickness variation (DTV) over time, is the most common cause of judder. Disc thickness variation is when the disc has worn unevenly, causing the two friction surfaces of the disc to no longer be parallel with each other. This is often confused with disc warping.
The biggest reason for this shaking problem is the condition of your rotors – the disc your brake pad clamps down on when you apply your brakes. Most commonly, the vibration happens because the rotors have some kind of imperfection on their surface or they have changed shape (warped) over time.
Probably the most common sign of a warped brake rotor is the vibration through the brake pedals when pressure is applied on them. Sometimes you can feel it even when there is only a light amount of pedal pressure on the brakes. Other times, it can only be felt when slowing down drastically from higher speeds.
Probably the most common sign of a warped brake rotor is the vibration through the brake pedals when pressure is applied on them. Sometimes you can feel it even when there is only a light amount of pedal pressure on the brakes. Other times, it can only be felt when slowing down drastically from higher speeds.
Warped rotors can unexpectedly increase stopping time, resulting in a potentially serious accident. Continuing to drive with warped rotors will cause catastrophic brake failure due to more and more components failing.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Rt. Ft. rotor warped. Replaced it with new rotor and pads. Did not fix problem. could bearings be damaged?
ANSWER : Yes, depending on how bad the condition of the warped brake rotors and pads were before you changed them, they could have gotten hot enough to ruin the bearings and races which could cause the vibrating you are describing. You should have a certified mechanic, like one from YourMechanic, diagnose the vibration you’re experiencing. They’ll be able to pinpoint the issue for an accurate repair.
how thin can rotors be before replacing?
ANSWER : Nothing sounds right about that. There are references that tell mechanics how thick rotors are when new, when they’re too thin to machine, and when to discard. The rotors need measured with a micrometer to check this. Rust and some other factors can shorten the life of a rotor before it’s too thin, but you should have been informed of this. They are many reasons to replace a caliper. Brake pads being too thick are not one of them. Either the piston in the caliper is not compressing all the way, there’s a seized caliper slide, or they have the wrong pads. If the piston is stuck, this warrants replacement. I would get a second opinion from a certified mechanic, such as one from YourMechanic, who can diagnose your brake system and suggest what to do from there. Good luck.
New front pads & rotors (2mths) and hear a grinding noise when coming to a slow gradual stop. What could be causing this?
ANSWER : Hello, thank you for writing in. The last technicians that worked on your vehicle are not wrong. There are certain types of brake pads that will make a squealing noise when the brakes are applied. These are typically made from a metal composite material. You can always research the brand they put on and find out more about the brake pads. This would give you a good idea of what you should reasonably expect. Are the brakes exhibiting any other types of symptoms? If there is any sponginess in the pedal, shaking or vibrating, hard stops, or other symptoms then there may be more cause for concern. In situations like these, if you are expecting to drive the vehicle a longer distance in the near future, it is recommended that you get a second opinion. Our technicians can dispatch to your home or office.
Does my car need new brake pads and rotors?
ANSWER : Hi there:
In most instances, if the brake pads have not fully worn out, the rotors will not suffer scarring or pitting which typically means the rotors need to be surfaced or replaced. However, it really depends on the damage that has been done or if the rotors may have been warped due to excessive heat or braking. Before you take your vehicle to any of these shops, you might want to have professional mobile mechanics complete a brake pads and rotor inspection to give you an accurate assessment of the repairs you need to have completed on your Volvo.
Brake calipers needing replacement after brake pads and rotors were replaced?
ANSWER : I think you have it backwards. The pads and rotors do not cause bad calipers, but a sticking or binding caliper can cause the pads to wear excessively and cause the pads to dig into the rotors. The calipers may not of been binding until the caliper pistons had to be pushed back to install the new pads. It would be recommended to have the brake system flushed after replacing the calipers, pads, and rotors so the system has all new fluid. A certified technician from YourMechanic can come to your car’s location to perform any needed repairs with your brake system.
All rotors warped – 2009 Kia Borrego
ANSWER : The braking system must be checked over a little more closely. Warped brake rotors can also be caused by malfunctioning brake calipers that are not releasing a they should. This can be caused by the caliper itself or a blockage in the flexible hose. If the rotors were machined at the last service, consider installing new ones with new brake pads and all new hardware. If you would like a second opinion, a certified technician from YourMechanic can come to your home or office to inspect your vehicles braking system.
put new front rotors and pads also new rear drums, but when braking vehicle vibrates like when you have bad rotors
ANSWER : Vibration of the type that you are describing is due to excessive thickness variation in the rotor and/or the rotor has excessive axial runout as mounted on the wheel hub. There is also a possibility that the rotor is warped or was warped on installation if the proper bolt tightening sequence was not used. Thickness variation and rotor run-out are readily measured. Thickness variation can not exceed .001 inches and runout of the rotor can not exceed .002 inches as installed on the wheel hub. If you measure .004 inches or so (as an example), you can be sure that that is the cause of the vibration. If you desire that a certified mechanic inspect the vehicle and get the vibration issue resolved, please request a brake system inspection. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Replaced rt.& Left Rotors and brake pads. Also Rt. hub. the problem is ABS & brake light still come on. Does this have be reset ? 2004 Buick Ranier
ANSWER : Hello – the short answer is "Yes", the ABS problem code needs to be cleared with an appropriate Scan/Reset tool. This also begs the question "Was the ABS specific code read when the ABS light first came on, so that the failing part was identified and replaced the first time?". Quite often, these symptoms are the result of a dirty or failed wheel speed sensor – which you don’t list as a replaced part. I would recommend an ABS system inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
