Q: Every time I droves 40 or 50 and apply to the brakes,my front end shakes what can this be

asked by on January 31, 2017

When I drives 40 or 50 and applys to the brakes my truck shakes,in the front..what can this be??

My car has 200549 miles.
My car has an automatic transmission.

The most common cause for a pulsation when the brakes are applied is warped rotors. The brake rotors will wear over time and the brake rotors are a perishable item. The rotors can warp due to excessive wear, using the vehicle to tow heavy loads, or any other reason that will cause excessive heat in the brakes. It is possible that a fluid leak can cause a type of surge, but this will normally be observed at all speeds. Warped rotors are much more common than a leak. If the rotors still have enough material on them, they can be turned on a lathe, and the warp can actually be machined out. However, if the warp is too excessive, or the rotor is worn past its serviceable limits, they will need to be replaced. If you need help identifying and/or repairing the issue, contact a certified mechanic, like those available at YourMechanic.com.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Whining whistling in TBI area

Hello. I believe that you are experiencing a problem with the idle air control valve. It probably has built up some carbon. When the engine warms up it requires less air at idle so this valve closes a little more...

Car shutting off even with a new fuel pump.

In my experience I would recheck the fuel pump again since if it fixed the problem only a short period of time, then the new part may be defective. The fuel pressure test would let you know if it is...

Getting various error codes

Sounds like you have several things going on. The first code P0220 is usually set because of a variance in voltage. This is sometimes due to a loose ground connection. A mechanic should be able to look up power and...

What is The Cost of Parts to Replace a Bad Exhaust Intake Valve on a 1995 GMC Sierra? How Long does it take to complete job?

Hi M.H. Thanks for contacting us tonight. Unfortunately, this is a service that our mobile mechanics are unable to offer. This type of job should be completed at a local engine shop, as removing valves will require special tools in...

No power any were, fully charged battery.

Hi There, You may want to double check the ground connection to the chassis of the truck. As you may know, the ground wire connects the vehicle battery to the metal chassis, completing a circuit. Without the ground wire, the...

Overheating Under Load

Hello. To start, you may have a restriction in the system somewhere. This will come in the form a clog in the radiator, or the water pump going out. Both of these units can be tested individually. The clogs will...

Not shifting into overdrive

This transmission is electronically shifted. Possible causes of no overdrive include a faulty transmission range switch, valve body, faulty overdrive brake, or faulty ECM. Faults codes should be read out with a scanner, and statuses read. You may want to...

Hi, my name is Jorge from North Houston, TX, and I'd like to know the location of the Expansion Valve (Orifice Tube) for 2011 GMC

Your vehicle has an expansion valve mounted at the firewall behind the two a/c lines where they connect to the evaporator assembly. You will need to evacuate the a/c refrigerant and remove line connection and then unbolt the expansion valve....

My truck bogs down when I accelerate going down the road

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...

Related articles

A Buyer's Guide to the 2012 GMC Yukon Hybrid
The The GMC Yukon is about as big and powerful as any SUV can ever get. However, in the past, that also meant paying a large sum every time you hit the pump. GMC has addressed this problem with their...
A Buyer’s Guide to the 2012 GMC Canyon
In In today’s world where it seems as if carmakers are determined to deliver only the largest vehicles possible, the 2012 GMC Canyon offers a compact pickup that holds its own. From a 4-cylinder that offers more horsepower than other...
Top Five Selling Cars in Colorado in 2012
Colorado Colorado offers a varied climate depending on where drivers are located. Those in lower elevations see plenty of sunshine all year, while those in the mountain areas can see as much as 300 inches of snow. Due to this,...