Skip the auto shop - Our mechanics make house calls

Q: My car consumes fuel excessively

asked by on

My car has the check engine light on and it consumes fuel excessively.Though its emission at the exhaust is pretty okay.
My car has an automatic transmission.

Hello there. Many faults could cause your vehicle to consume excessive fuel. The most common faults are a misfire condition, a bad mass airflow (MAF) sensor, a fuel leak, a vacuum leak, a faulty oxygen sensor, or an exhaust leak. A qualified technician, such as one from YourMechanic, will be able to inspect your vehicle, determine why you are getting poor fuel mileage, and make any necessary repairs to resolve the issue.

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: What happens if I don't replace knock sensor?

The knock sensor on the engine is there to detect for an engine noise from pre ignition (pining) normally. This is so the computer can advance the ignition timing to the maximum it can without the engine pinging. This gives...

Q: Why do I continue to have a burning oil and fuel smell in my 2009 Dodge Charger

Hello. This can be caused by a number of things. If you continue to have leaks in the engine then there may be too much pressure built up in the engine. This is usually caused by excessive blow by due...

Q: Need oil pan gasket, valve cover gasket, lower control arm bushings. How much it will cost.

Hi there. The first thing we need in order to provide you with a quote is your location; which will ensure we offer services in your area. Please start by submitting a request for the oil pan gasket replacement](https://www.yourmechanic.com/services/oil-pan-gasket-replacement). Once...

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 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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.