Skip the auto shop - Our mechanics make house calls

Q: At slow speeds the ABS kicks in when breaking. I'm on dry pavement. Is the speed sensor or hydraulic brake booster pump at fault?

asked by on

At slow speeds the abs kicks in when breaking . I'm on dry pavement. Is it the Speed sensor or Hydraulic Brake Booster Pump?

A: Hello. Most of the time this is caused by a...

Hello. Most of the time this is caused by a wheel speed or a yaw sensor issue. I would start by checking the tires. Make sure that they are all the same. If one of the tires is different than the others then this will occur as it throws off the ABS readings.

If nothing is found then I usually install a computer scan tool and monitor the yaw sensor and the wheel speed sensors. This would tell me what is going on and what needs to be fixed.

If you want to have this ABS system problem checked, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: My cars speedometer just now started wiggling and going back and forth and sometimes to 0 mph.

I would recommend changing the speedometer. I recommend this because the speedometer on older vehicles from the 90s have a manual gear that turns the it. It seems as if the gear has broken and only contacts the needle some...

Q: 2008 mercury mallies makes a hise noise (on the right side of the engine compartment ) when the brake peddle is pressed

Hello, and thank you for writing in. Consider the noise and determine if it sound like a fluid or air sound, or if it is more mechanical as in a metal on metal noise. The vehicle does have brake lines...

Q: ABS lights flashing on dash, temperature gauge increased. Multiple lights flashing on the dash. I put my seat belt on and they went away

Hello, this could be a number of things depending on how the vehicle is running now. If you possibly ran through a puddle of water or your belt is worn, it could have slipped and caused the lights to flash...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...