Q: Does the mass airflow sensor affect how your brakes work besides rough idling?

asked by on October 05, 2016

Truck idles rough and brakes pedals are hard to push. This all started when the rough idling started.

My car has 225000 miles.
My car has an automatic transmission.

Car idle is rough Inspection $94.99 - $114.99 Get a Quote

Hi, thanks for writing in. While the mass airflow sensor does not have anything to do with the brake system, it will definitely affect how the engine will run and can cause it to run rough or idle rough if not working properly. This monitors the air intake as it is mixed with fuel prior to being injected into the motor. When this is failing, this can cause a rough idle or sometimes cause the car to stall. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I adjust the clock between 12-hour time and 24-hour time?
You can choose whether the clock is in 12-hour time, or 24-hour time, with just a few steps: 1. Turn the ignition to On, while making sure the vehicle is completely stopped. 2. Press the Menu button. 3. Use the...
Door stuck open
It sounds like the latch that holds the door closed may be stuck in the closed position, preventing the door from shutting fully. This latch is located inside the door, but is visible while the door is open. It may...
Whining noise over 60 mph on a 2007 BMW
You went to the wrong mechanic. It's whining and it is not supposed to whine. A good mechanic can analyze it. This could've been beyond their knowledge or they don't know much about BMW. Watch my video, "how to find...
Why wont my car start?
You should try testing the battery (https://www.yourmechanic.com/article/how-to-check-a-car-battery)first. Verify it's good and at least 75% charged. Because your car has a PassKey theft deterrent system, a faulty ignition lock cylinder (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-lock-cylinder) can cause this on your '95 Monte Carlo. There should...
I saw this car, and the owner is selling it,
Vehicles that were badly wrecked will usually get a salvage title (https://www.yourmechanic.com/article/what-is-the-difference-between-a-clean-title-and-a-salvage-title), which means the vehicle damage was estimated to be more than roughly 70% of the value of the vehicle (https://www.yourmechanic.com/article/how-to-calculate-the-value-of-a-salvaged-car-by-jason-unrau). Also, from personal experience, anyone with a salvage...
Is it the part or a deeper problem when the camshaft position sensor error displays after replacement
As a technician, anytime two sensors fail at once, I suspect there is something that both these sensors have in common. This common item is the likely point of failure. It is unlikely that two sensors would fail at the...
My car's gear won't shift. Only neutral works. I just changed the transmission fluid.
Hello and thank you for your question. When you changed your transmission fluid, you need to ask yourself what the color of the fluid was when it drained out. If the fluid was very dark or black, then when putting...
Alternator needs changed out. What tools is best for this?
To remove the alternator to your vehicle, you will need a serpentine belt tool (or a breaker bar 1/2 inch drive), a 3/8 drive socket set with a ratchet, and a medium side pry bar to help remove the alternator...
oil leak
Claimed by Jeff Engstrom

Related articles

A Buyer’s Guide to the 2012 Chevrolet Volt
Whether Whether you’re concerned about the environment or just want a vehicle that allows you to use less gas, the 2012 Chevrolet Volt might be just right for you. Designed to run entirely via an electric current, this electric hybrid...
The Best Used Cars to Buy If You're a Dog Trainer
If If you are a dog trainer, you expect a lot from your vehicle. You want a ride that is safe, roomy, and of course, dog friendly, since your training operation will often mean that you need to transport the...
The Top 5 Selling Cars in Alabama in 2012
2012 2012 was a great year in Alabama for auto manufacturing, but that wasn’t the only bright spot. Vehicle sales in Alabama were also robust in 2012. Nothing much changed in terms of the vehicle types that were most popular...