Skip the auto shop - Our mechanics make house calls

Q: Brake pads repalaced, brakes sqeak and smell with smoke

asked by on

Hello. I've just had my front brake pads replaced with the ProStop basic ones. While I was driving on the highway, they started to make squeaking noise and felt kind of spongy. During braking, they weren't very efficient when I stopped hard and they smelt. There was also some smoke. What is causing this? Is it due to pads replacement? Thanks

A: I believe what happened was that the techni...

I believe what happened was that the technician who replaced your brake pads may have not done one or both of two things: replace the rotors or road tested the vehicle.

Since you did not mention it, I assume that the technician did not resurface or replace your brake rotors. This is something that should always be done during brake pad replacement to promote quiet and efficient braking. That is, just what the technician may not have done.

The other thing the technician may have done instead of or in addition to not servicing the brake rotors would be not road testing your vehicle to break in the new brake pads. This road test usually consists of thirty stops from thirty miles per hour with thirty seconds in between stops to allow the brakes to cool.

When the pads are breaking in, the resin and glues inside the friction material will settle. During this time the brakes will produce the smell that you are smelling. That is normal. It is also normal to see smoke sometimes during the break in period. It is possible that the noises, smell, and smoke you are experiencing will go away after a day or two of driving. If they do not, I would recommend taking your vehicle back to the technician who replaced your brake pads and ask them to check it out. They should take care of you free of charge as the brake job is likely under some kind of warranty.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: module or unit?

Hi there. From the description you have provided, your vehicle Check Engine Light on with lots of warnings and exterior lighting acting weird, sounds like there may be a charging system related problem. I would recommend not driving your vehicle...

Q: Gasoline smell in back of car

Hi there. I believe that the problem may be a seal leaking for the sending unit on the gas tank. It will require taking the rear seat out, lifting the carpet, and inspecting the seals for leaking gas. I would...

Q: code p2015 and p2004

The codes are telling you the intake manifold runners are open. They are normally closed while driving and only need to be open when the engine is off. The intake manifold depends on them being closed for proper vacuum. This...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...