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My brakes are making a groan and grinding sound with vibration on the steering wheel. This happens when I hit a bump in the road and have to put my brakes on. I had the brakes replaced and the rotars turned and one is new. But its still doing it. Could this be the brake booster or master cylinder?

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I would have the other rotor replaced. unless they have a newer machine and know exactly what they are doing then i would allow somebody to turn my rotors. but save the hassel and just replace them

Posted on Jul 11, 2010

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Posted on Jan 02, 2017

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I hit a bump in the road and now the truck pulls real bad to the right and the steering wheel shakes real bad at low speed and when I hit the brakes? 2000 gmc sonoma


check your wheel is on nice and tight. check that the yore has no bulges or damage to all sides.
If everything appears okay take it to a suspension/steering specialist for a look ....sounds like you may have suffered suspension damage.
Who is responsible for the maintenance of that road? I would consider contacting them for an inquiry about possible compensation for the cost of repair, they always fix the road pretty quickly after such inquiries!!!!!
Taking a photo of the offending bump might be advisable

Jul 07, 2015 | GMC Cars & Trucks

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When your Cadillac shakes when you start it what usually wrong


  • Knowing the warning signs of impending trouble can go a long way toward keeping your car from a highway breakdown.

    You need to develop an awareness of how your car should sound. For instance, when you turn the key to start, the gear like sound of the starter motor engaging should be smooth and sound like an electric motor working hard to crank the engine. If you notice a different sound - more like a grinding - chances are you have a starter motor problem about to happen. Let's say you're driving along and you feel the steering wheel vibrating at certain speeds. The onset of this subtle vibration could tip you off to a tire that needs to be balanced, worn steering linkage or a bulge in a tire that may be about to blow out. In any case, the vibration needs attention. Normally you shouldn't notice the sound of the exhaust system. A sudden change in your car's sound, therefore, isn't something to ignore.

    Suppose you're used to a pleasant hum, then, perhaps after a bump or when starting up the car one morning, there's a loud roaring that sound like a hot rod without a muffler. The harder you press the gas pedal. The louder the noise becomes. A noisy exhaust means the exhaust gases are blowing out under the car rather than at the rear of the car - a dangerous condition. Brakes play their own warning tune. On many cars, a scratching noise coming from the wheels that stops when you stop pressing on the brake pedal is caused by a low-brake warning device. Its purpose is to warn you that you need front brake pads. A loud grinding noise when you step on the brake pedal is an alarm that your brakes need immediate attention. The grinding noise occurs when the brake pads are totally worn away and the metal of the brake pad backing plate rubs directly on the brake rotor.

    Ignoring grinding brakes can be a costly - or even deadly - error. Shock absorbers help keep the car steady and balanced while the wheels roll over bumps and ruts. Their modern counterpart, the MacPherson strut, does essentially the same thing. You might not notice worn shocks or struts when you're simply riding around town. The safety effect of these devices comes into play at higher speeds. When you hit a bump, the tire wants to bounce like a basketball. Worn shocks or struts allow the ties to bounce out of control making steering difficult and braking less effective.

    What you may notice is the car rocking more every time you stop, assuming an almost boat like quality. Old, broken or worn out shocks and struts should be replaced to ensure safe steering and braking at higher speeds. Engine noises are easiest to hear when the car is not moving. Transmission sounds or brake noises usually occur when the car is moving. Pay attention to any new sound and keep notes - how it sounds, when it makes the sound and what difference, if any, occurs in driving when the noise is present - to help you describe it to your service dealer.

May 22, 2015 | Cadillac Cars & Trucks

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2007 VW Jetta (wolfsberg). It's making grinding


It sounds like the inner liner of one of your wheel wells has come loose and is touching the wheel. This would make a sound while moving, but not while stopped. Look inside your wheel wells for the plastic lining that goes all the way around the tire. Look for wear signs. It may even be a hole by now. If you see wear, tug on that wheel well liner to see if it is loose. If so, get replacement screws to hold it in place.

That would explain rumble sounds, high pitched sounds, changing sound when hitting bumps. And it would not affect any dynamics.

The creaking and groaning when car is turned off is a different animal. Possibly something to do with A/C which is depressuring after the car is turned off. To determine if that is the case, see if it makes the same sounds if you've been driving with the A/C off? If not, it's A/C related.

Aug 20, 2013 | Cars & Trucks

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I had a constant grinding coming from front passenger tire. Replaced Caliper and put the worn pads back on for a day, the constant grinding went away. It would still grind while braking,hitting a bump


It sounds like the brake pads are metal to metal, when you turn the flexing of the wheel makes them touch the rotor and grind. This can rarely be caused by a badly worn wheel bearing as well, have both brakes and wheel bearing inspected.

Mar 02, 2017 | 1999 Pontiac Grand Am GT

2 Answers

I have a 1993 Jeep Grand Cherokee Laredo. There is a "violent" vibration that occurs only when you are going 40-60 MPH and you hit a bump or pot hole on the highway. The front end begins to...


Vibration from about 40-60 mph is usually attributed to wheel balancing, but the onset when you hit a bump seems to indicate play in the steering linkages (tie rods etc) or suspension members and stabiliser bar rubbers but you had that all checked out, that brings us back to the wheel balancing.

Mar 17, 2011 | 1993 Jeep Grand Cherokee

2 Answers

Hub making grinding noise tie rods need replacement


A grinding from the hub sounds like a bad wheel bearing.

Jun 01, 2010 | 2001 Buick Park Avenue

1 Answer

Steering Vibration (Death Wobble)


HEY I HAVE A QUESTION YOU DONT FEEL THE PROBLEM WHEN YOU HIT THE BRAKES AT HIGH SPEED IF YOU DO THE PROBLEM IN WHIT YOU BRAKES YOU NEED TO DO NEW SURFACE IN YOU ROTORS AND PUT NEW BRAKES

Aug 05, 2009 | 1998 Land Rover Discovery

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