Skip the auto shop - Our mechanics make house calls

Q: Why does my car cut off when I hold on the brake

asked by on

When I hold on the brake my car starts vibrating then cutting off. Also after I release the brake to go my car jerks really badly

My car has 158000 miles.
My car has an automatic transmission.

A: Brakes don’t have any connection that will ...

Brakes don’t have any connection that will affect the way your car runs. What is likely happening is the car is idling too low in gear, which is what is happening when you come to a stop. It will only do this once it is warmed up. Most likely you have a problem with your IAC (idle air control) valve. They get gummed up with carbon deposits and stick.

One other possibility is your power brake booster has a vacuum leak. When you press on the brake pedal, it will open the intake manifold to atmospheric pressure allowing un-metered air into the engine. Cars with MAF (mass air flow) sensors don’t do well with vacuum leaks and your car has a MAF. This can easily be tested for by pinching off the hose connected to the brake booster and pressing on the brake pedal. If the car doesn’t die on you, then you have successfully diagnosed your car.

If you’d like to get this fixed, consider YourMechanic, as a certified professional can come to the vehicles location and diagnose the stalling issue firsthand.

Keep in mind, your car should be completely warm when doing this test.

Good luck!

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: When I first put refrigerant in my car the ac was really cold after 2 days its still cool but not as cold is this normal?

It is possible that since you had a leaking O-ring, not only did the refrigerant leak out, but the outside atmosphere contaminated the receiver/dryer in your A/C system. The job of the receiver/dryer is to absorb any moisture and contamination...

Q: Minivan has rumbling noise

I don't think that it is the gasoline that has to do with this. From the description you give of the rumbling, it sounds more like a tire or wheel bearing issue. Without seeing the vehicle in person, it would...

Q: goes into gears without the use of the clutch pedal

You have one of two possible problems. The first possibility is that the clutch disc is totally worn out, causing it not engage any more. Secondly, the input shaft of the transmission may be broken. Either way, the transmission will...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...