Q: Car shake and miss fires but only when low on gas

asked by on May 09, 2017

Car has had engine light on but was told it may be the spark plugs. Now, whenever my car is low enough on gas, my car will shake & check engine light will blink. Was told before it may be the gas pump or something but now some times shakes when I accelerate & hesitates. It has stalled before when low on gas.

My car has 211341 miles.
My car has an automatic transmission.

Hello, thank you for writing in. A fuel pump issues is a very good assumption to make with the information given. When they are weak and having issues regulating fuel pressure, they begin having similar symptoms. You can verify this with a fuel pressure test when the symptoms start to occur. If you pulled codes from the vehicle that indicated a misfire, a lack of fuel supply may be to blame. Only further testing will tell. Keep in mind the "gas" pedal, really controls the throttle (which controls the air supply to the engine). The vehicle then decides how much fuel needs to be mixed with the amount of air being sent in. If the fuel pump cannot keep up with the amount of air, misfires occur, and stalling is a possibility. For more help resolving the issue, contact our service department to schedule an appointment.

Was this answer helpful?
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

Get a quote

What others are asking

Check engine light and car idles low/runs differently

This may be related to a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...

Battery light came on went and bought a new battery battery light comes on about 1 minute after starting car.

The alternator on this vehicle is computer controlled and if the alternator is not communicating to the computer then it may default to a set charging rate that will show up as good when testing using standard methods. The computer...

Car making a vacuum sound and makes my battery drain, therefore kills the car

Hi Brandon. There are many things that could be causing this issue, ranging from a vacuum leak, to a cracked or damaged exhaust manifold. You might want to have a professional mechanic come to your location to complete a car...

Related articles

How Often Should the Fuel System Be Inspected?
Without Without fuel, an internal combustion engine will not run. For this reason, parts used in the fuel system are built for durability and can stand up to years of near-constant use. Some parts, like the fuel filter, exist to...
How Can You Tell That Your Fuel Pump Isn’t Working?
The The fuel pump is responsible for getting fuel out of the gas tank and up to the engine. The pump itself is usually located inside the gas tank. There are a handful of symptoms to look out for that...
2012 Hyundai Elantra vs. 2012 Ford Focus: Which One Should I Buy?
The Hyundai Elantra and the Ford Focus are both offerings in the inexpensive compact sedan category, and both represent some of the best offerings in that class. Compact cars are slightly larger than a subcompact, but smaller than a mid-size;...