Skip the auto shop - Our mechanics make house calls

Q: Loss of power

asked by on

On slight incline the car power seems to go away. Wife says pedal will go all the way down but doesn't want to go. Also, stalls occasionally at stops. What could cause this?

My car has 110000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. This may be caus...

Hi, thanks for writing in. This may be caused by a variety of issues, however these symptoms are very common when the mass airflow sensor is faulty. This is a unit that monitors the air intake as it is mixed with fuel prior to being injected into the motor. When this is not working properly, this can cause stalling and intermittent power loss as you describe. 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.

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: I'm looking to buy replacement motor mounts. How many of the front and rear do I need? 2004 Nissan Sentra

Hello - there are a total of 4 motor/transmission mounts. Given the transverse mounting of the engine/transmission, there are ambiguities in "front", "rear" and so on. As a consequence, parts manufacturers are offering them as a set. Replacement is best...

Q: How do I set the driver alert?

The driver alert feature displays a warning after a specific amount of time has passed. This can be a key safety feature that can be used to remember to take constant brakes while driving. To set the alert, follow these...

Q: Smell gasoline and see black smoke from exhaust

Hello. Black smoke from the exhaust is the first sign of a rich condition. This means too much fuel is entering the engine. This can be caused by a number of reasons from a leaking fuel injector to a failing...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...