My truck vibrates in the frount end when i slow down are brake around 30 to 20 mph ive changed the whole set up as far as brakes
I have change rotors pads lines brakets pins checked tires and tirod ends every things good had it checked by 3 different shops and no one couldn't find the problem domt know what eles to doi dom every thing and changed all brake part also this started before i made repairs it even doed it when i decelerate with out pressing brake
My car has 139108 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello. This is a sign of potentially bad or worn wheel bearings. When wheel bearings wear out or become damaged due to dirt or debris or lack of proper lubrication, they will cause this type of vibration which is more noticeable usually upon slowing down or when any kind of force is exerted on that particular wheel, for example when making a turn. If you need further help, I would recommend having an expert from YourMechanic come to your home to diagnose the vibration issue issue in person and assist with repair.
How to Identify and Fix Common car Problems ?
Our sources include academic articles, blog posts, and personal essays from experienced mechanics :
If the rotor is warped or has a variation in thickness, you may find your vehicle shakes when braking, or the steering wheel could shake, or the brake pedal may pulsate. Have your brake system checked and, if a damaged rotor is the problem, the part can be replaced.
Your car`s front-end alignment could be way out of whack. Your car`s steering might suffer from a loose control arm or damaged knuckle. You might have a damaged axle shaft that`s acting up. You might even have a case of loose lug nuts, giving the wheel a chance to wobble that becomes especially noticeable as you slow …
If you feel the shaking or vibration in your steering wheel and your brake pedal, it could be your rotors. The rotors get pressed by the brake pad to help slow your vehicle down, and if the rotors are out of balance, this could be causing the vibrating tremors that you feel in the pedal and steering wheel.
Worn Wheel Bearings
The wheel bearing hub assembly contains the brake rotors, which are connected right to it. If you have a worn wheel bearing, it can cause you to feel vibrations when braking. You`ll want to replace the wheel bearing or bearings that are worn.
Brake problems such as warped rotors, worn-out brake pads, or stuck calipers can cause vibrations when braking at low speeds. Replacing old brake pads with new ones, resurfacing warped rotors, or lubricating stuck calipers should help solve this problem.
Because the CV Axle joints are located right next to the vehicle`s wheels, any damage to them can directly affect your driving. If you suddenly feel as though your vehicle is vibrating more than normal, it can mean that you have a damaged halfshaft.
This is a common symptom of a plug or wire electrical current problem. Air or Vacuum Hose — Another common cause for engine vibration and power loss is when air or vacuum hoses come loose, begin to leak, or rupture. The three necessities for all combustion engines are air, fuel, and spark.
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.
A new set of brake pads may be the easiest way to address your vehicle`s brake shudder. However, in some cases replacing your brake rotors or having them resurfaced will fix the brake shudder. If you`re replacing brake rotors, it is recommended you also consider replacing the brake pads as well.
In a ball bearing, spalls and pits often form on the contact surfaces between the raceways and balls. The variation of the contact deformation between the ball and the raceway when the ball passes over a defect causes a sudden change in the contact force, which causes periodic vibration of the bearing.
Damaged or worn wheel bearings
Designed to secure the wheel hub to the vehicle`s suspension, and allow the wheels to turn properly, these safety critical components can cause steering wheel vibration if damaged or not lubricated sufficiently. In this instance, the steering wheel will usually only shake when turning.
Bad Bearings — Friction from bad bearings or inadequate lubrication can cause a shaky steering wheel. If bearings are the cause, you`ll notice that the shaking only occurs as you turn the wheel. To solve this problem, you can oil the bearings, or schedule a service appointment to replace them if there`s damage.
A shudder or vibration may develop while driving at speeds between 35 and 40 MPH. Our technicians tell us this condition is commonly caused by a failed automatic transmission torque converter. It is recommend to replace the torque converter and install an updated powertrain control module (PCM) to correct this concern.
This could be caused by multiple issues, including the brake pad is sticking due to lack of pad depth, the rotor is warped or there is low brake fluid.
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.
You Need to Service Your Tires
If you notice your car shakes when braking downhill, it could mean that your tires are old or are out of alignment. If this is the case, your suspension is working harder than normal to keep your vehicle balanced.
The more your fuel intake system is clogged, the less efficient your engine uses fuel, which can cause it to shudder when you`re at a stop. Fuel is delivered to your engine by fuel intake valves, and these should be cleaned regularly to prevent clogs and a shaky sit at a red light.
The more your fuel intake system is clogged, the less efficient your engine uses fuel, which can cause it to shudder when you`re at a stop. Fuel is delivered to your engine by fuel intake valves, and these should be cleaned regularly to prevent clogs and a shaky sit at a red light.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
My truck vibrates in the frount end when i slow down are brake around 30 to 20 mph ive changed the whole set up as far as brakes
ANSWER : Hello. This is a sign of potentially bad or worn wheel bearings. When wheel bearings wear out or become damaged due to dirt or debris or lack of proper lubrication, they will cause this type of vibration which is more noticeable usually upon slowing down or when any kind of force is exerted on that particular wheel, for example when making a turn. If you need further help, I would recommend having an expert from YourMechanic come to your home to diagnose the vibration issue issue in person and assist with repair.
My truck is vibrating when braking
ANSWER : Towing and the symptoms you are experiencing are probably unrelated. My guess is that your brake rotors are warped. Sometimes, warped rotors are more noticeable at certain speeds.
This is a pretty easy fix, which can be cured with a complete brake job. To determine for certain whether rotors are the cause, I suggest you have a trained professional inspect your brake system firsthand.
My car is hesitating / jerking at speed intervals of 20 mph, 30 mph, 35 mph and 40 mph.
ANSWER : This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected into the motor. When this fails, this can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This may cause a hesitation, loss of power or jerking reaction when this sensor is malfunctioning. When this is not working properly, you may also notice a strong smell of fuel. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor.
severe steering wheel vibration at speeds above 60 mph, but not below 60, and severe vibration during braking.
ANSWER : If you can wiggle the tire side to side then you either have a problem with inner or outer tie rod ends. You may have both of them that are bad. This will allow the side-to-side movement, but brake rotors that are warped is the fault that may be responsible for the wobbling. You should have the tie rod inner and outer joints checked and replaced. Also check the rack and pinion bushings to make sure they are properly in place. If you need help with any of this, a certified mechanic, such as one from YourMechanic can come to your car’s location to inspect your vehicle’s vibration issue.
Heavy vibration when braking above 40 mph. Also vibrates in the steering wheel
ANSWER : This may be a variety of things, such as wheels and tires out-of-balance, poor alignment, worn or failing wheel bearings, worn or failing control arm bushings, or worn or failing suspension components.
A wheel bearing will usually fail due to pitting or small damage on the surface of the rollers or the bearing race. Both the surface of the rollers and the race is precision machined to tight tolerances and highly polished to allow the rollers to pass easily over the race with the addition of bearing grease for lubrication and cooling. Over time, the bearing will wear slightly, allowing microscopic pieces of metal into the grease.
Bearing noise can sound a lot like a brake pad dragging or grinding. It can also sound like whirring, whining, or humming depending on how much sound deadening material your vehicle has in it. Bearing noise will always be dependent on vehicle speed; meaning that, as you speed up or slow down, the noise should change frequency or loudness.
Cornering may affect the noise from a damaged front wheel bearing and is usually more pronounced as you make turns. I would suggest having a professional from YourMechanic come to your location to inspect the vibration problem and proceed with the needed repairs.
Low brake pedal and anti-lock brakes are not kicking in.
ANSWER : The brake pedal is working to stop the vehicle, but there may be air in the controller unit causing the ABS brakes to not function. I recommend bleeding the brake system from the farthest location from the master cylinder to the master cylinder including the ABS unit. If the brakes are still spongy after a full bleed, then the controller will need to be replaced. If you need further assistance with your brake pedal being spongy, then seek out a professional, such as one from Your Mechanic, to help you.
Changed brake master cylinder, bled 10 times, and the pedal is soft The rear brakes are not locked but close. Truck now running rough.
ANSWER : You will have to bleed the brakes from the farthest location all the way to the master cylinder. There is still air in the lines causing the issue. Check the vibrations on the vehicle to see if the engine mounts are damaged or if the brakes are not releasing causing the engine to run harder than normal to overcome the braking force. If you need further assistance with your vehicle’s brake system, then seek out a professional, such as one from Your Mechanic, to help you.
Major shaking and shuddering,vibration when applying brakes
ANSWER : It sounds like you may have some warped brake rotors. As you know, when you press on your brake pedal, this activates a hydraulic pressure which forces small pistons inside your brake calipers to push the brake pads against the brake rotors which is what causes the stopping power you are familiar with. When this happens, an enormous amount of heat is generated due to the friction between the brake pads and rotors. As the brake rotors eventually cool down and then heat up again the next time you press on the brakes, over time this can cause them to warp slightly causing very small low spots on the surface of the brake rotor. When this happens and the brake pads are applied again to the rotors, this causes an uneven surface (on the rotor) to be applied to the flat surface brake pad, which can cause a vibration, shaking or very loud grinding sound. I would recommend having an expert from YourMechanic come to your location to diagnose and replace your brake rotors.
