Skip the auto shop - Our mechanics make house calls

Q: car cutting out in low gears on stopping, traffic lights and junctions

asked by on

ive had the idle valve and pipes replaces, oil & filters changed/cleaned, new spark plugs, new front brakes, anti roll drop bar replaced but the car keeps cutting out when I slow down and press the clutch and brake together, also the battery light flashes on every now and again whilst im driving it but the battery is also brand new.

A: Hello. This is often times a sign of a fail...

Hello. This is often times a sign of a failing mass air flow sensor. As you may know, this is a unit that monitors the air flow into the intake as it is mixed with the fuel prior to being injected into the motor. It relays this info to the car's computer which then tells the fuel injection system how much more or less fuel to introduce to the motor. When this is faulty, this will cause inaccurate fuel trim adjustments to be made resulting in the car cutting out as you describe. I would recommend having an expert from Your Mechanic come to your home to diagnose the stalling problem and replace the mass airflow sensor if verified faulty.

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・Save up to 30%

Get a quote

What others are asking

Q: I need the diagram instructions to replace the ignition switch

Hi, thanks for writing in. The best way to get a wiring diagram for your vehicle is to use a Chilton book, a factory service manual for the particular wiring diagram that you are looking for. As far as instructions...

Q: My car starts sometimes and other times it cranks over like normal but won't start.

First check on your vehicle service records to see if the maintenance is up to date. If you can smell fuel at the back of the car while the car will not start then you may have an issue with...

Q: No crank.no start

This is likely one of the other components in your starting system: battery, alternator, or starter. First, use a multi meter to test the voltage of your battery. It should read atleast 12.6 volts. Next, you will need to test...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...