Q: I have to fill gas tank everyday due to car using alot of fuel

asked by on March 19, 2017

my car has been using an extreme amount of fuel the past few weeks. I am having to fill the tank everyday it seems like. it's a small car that is supposed to get great gas mileage but clearly isnt. I tried changing the air filter and that didn't work. I had a Chevy dealership close to me fix the purge solenoid valve because apparently the fuel trim level was at 22%. they said they fixed it and brought it down to 7%, but the car is still using an extreme amount of fuel for as small of a car as it is. what could be wrong?

My car has 47000 miles.
My car has an automatic transmission.

Car is getting worse gas mileage Inspection $94.99 - $114.99 Get a Quote

Hi there. There are dozens of problems that can lead to a drop in gas mileage, some of them are serious and some can be easily corrected. Here are some of the more common issues that can affect the fuel efficiency of most cars.On newer cars like your Sonic however, unless you’re driving more than 300 miles per day, you shouldn’t have to fill the fuel tank daily. Since the dealership has attempted to resolve this issue, you might want to have an independent professional mobile mechanic complete a car is getting worse gas mileage inspection to see if they can find the source of this issue.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Beeps, squeals, and whistle sounds in brakes
You should first have the brakes fully inspected and the brake booster and master cylinder diagnosed for any leaks or defects. If no problems are found, then check to see if the vehicle has the latest calibration for the powertrain...
Rear differential problem?
In my experience, I have never observed the differential to be the cause of vibration. The most likely culprits are the wheel or tire, driveshaft, or axle. You had the wheels balanced, so that will rule out balance or a...
I filled up my gas tank this morning and it's almost half empty.
This is likely a failing fuel gauge sending unit (https://www.yourmechanic.com/services/fuel-gauge-sender-replacement). This is a unit that monitors the level of the fuel in the gas tank and relays this information to your car's computer, which then translates this and displays it...
Should I replace or clean the catalytic converter?
Hey there. The Check Engine Light can set if the catalyst efficiency is below threshold. There will be no visible symptoms at all, or change in engine performance, because the recorded "low efficiency" can simply mean that more pollutants are...
where can i find a certified Suzuki car dealer in Salem and Portland Oregon?
Power Mazda Suzuki Address: 3248 Market St Ne Salem, OR 97301-1815 Scott Esty Suzuki Address: 2910 Se Main St - Portland Portland, OR 97214
Oil leaking in the bottom chassis. 2009 Chevrolet
Hello - there are 2 possibilities for an oil leak (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-an-oil-leak) underneath the chassis as you describe. Engine oil, perhaps from the front crankshaft seal, or a timing cover leak, or a leaking power steering pump or hose. Power steering...
Truck turns over but don't start
Hi there. In many cases when a crankshaft position sensor issue is found, the actual culprit is the wiring harness that has been damaged and needs to also be replaced. If this was not completed when you replaced the sensor,...
Hi, can i clean the engine with any greaser? Thanks in advance
Hello, thank you for writing in. While we cannot advise you on a certain product to use, there are various products that will work just fine, and you will want to research which one you feel best using. When cleaning...
I have a 1998 saturn and it won't accelerate when i step on the gas please help
Your vehicle might be in a reduced power mode or limp mode. The issue you are writing in about is common enough that a specific diagnostic, namely a reduced engine power diagnostic (https://www.yourmechanic.com/services/reduced-power-light-is-on-inspection) is performed by technicians dispatched by YourMechanic....

Related articles

A Buyer’s Guide to the 2012 Chevrolet Captiva Sport
The The 2012 Chevrolet Captiva Sport is a brand new vehicle and is an eco-conscious crossover SUV for the environmentally friend consumer. It comes standard with many features, but also has many available options so it can suit any buyer’s...
A Buyer’s Guide to the 2012 Chevrolet Avalanche
Few Few vehicles are as distinctive as the Chevrolet Avalanche. Part SUV, part truck, the Avalanche is actually surprisingly practical. On the inside, it feels more like a Chevy Tahoe, except when you look out your rearview mirror, you’ll notice...
Top 10 Best-Selling Cars of 2016
Ford F-series pickup trucks, Toyota Camry, and Honda Civic are some of the best-selling cars of 2016 and all deliver on reliability and efficiency.