Skip the auto shop - Our mechanics make house calls

Q: Car cut off when braking or slowing down

asked by on

My car is currently not starting. Before, when the car was driven, and as long as I pressed on the gas pedal, the car went fine. But when I braked or slowed down, the car cut off and would take a few minutes to restart.

A: Your symptoms sound very similar to problem...

Your symptoms sound very similar to problems with air metering or fuel delivery. The idle air control valve regulates air flow while the throttle plate is closed. If this is blocked, the engine can choke. The ports can be blocked by carbon build-up, or the control valve itself may be experiencing a failure. Have a trained mechanic, like the ones at YouMechanic, determine the source and cause of this stalling issue, and recommend the best path to repair.

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: Rapid clicking when trying to start engine

Hi there. It sounds like you have either a faulty battery or a failed starter. If the battery has failed, insufficient voltage and amps are supplied to the starter and it cannot turn the engine. If the starter motor has...

Q: I did the heads and the crankshaft sensor and the car still will not start

Hi there. There are many possibilities as to why the car won't start. First, if the crankshaft position sensor is improperly installed, ignition timing will be incorrect. It's also possible that the electrical harness attached to the crankshaft sensor is...

Q: Why is my car keep starting & cutting off

Your vehicle has something called a neutral safety switch that will prevent the vehicle from starting when it is in any gear position other than park or neutral. Occasionally, this switch can malfunction causing the car to stall as soon...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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...