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.

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Why does my car cut off when I hold on the brake

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: Car overheats when I turn air conditioner on

The cooling system has two fans on most cars and one works to keep the engine cool with the A/C off and the other comes on when the A/C is on. The leaking fluid may be coolant from the radiator....

Q: check engine light for o2 sensor because the straight pipe and an Evap code are on, what does this mean, want to buy but unsure

It's possible that the seller eliminated the catalytic converter and along with it the downstream oxygen sensor, which is illegal by the way, and also guarantees a fail in any jurisdiction where emissions testing is mandatory. Unfortunately, an as bad...

Q: if my car overheated for the first time today and it's my water pump do I have to be worried about a head gasket

Hello, thank you for writing in. Water pumps can fail for many reasons, and your pump may have built pressure before bursting open. It may also have come loose over time, but either way they are very common place to...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...