Skip the auto shop - Our mechanics make house calls

Q: My car started cutting out after driving for a little while?

asked by on

My dad bought the car which had been sitting for about 9 months. Took it for a test drive and there was no problem. The after driving it for about 100 miles it started to cut out like crazy and the gas millage took a huge hit. It started getting about 20 when I know it should get around 30. So I was wondering what is the most likely problem with it.

My car has 180000 miles.
My car has a manual transmission.

A: Hi, thanks for writing in. If the car had b...

Hi, thanks for writing in. If the car had been sitting for 9 months, there may be a good chance of it having something as simple as bad fuel or bad spark plugs. I would recommend starting with a basic tune up service changing spark plugs, air filter and running some fuel conditioner and injector cleaner through a tank of fuel. If this does not cure your problem, then start with checking things like throttle body sensors, mass airflow sensor, O2 sensors, etc. If there is a check engine light on, this may also be helpful as this will register certain fault codes in the computer which can be downloaded and interpreted for quicker diagnosis. Here at YourMechanic, we can have a technician come to your home or office to inspect and diagnose this issue for you, and make or suggest the necessary repairs.

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: Car stalls while driving.

A car basically needs 3 things to run. Air, fuel, and spark. If one of those is missing the engine will not work. Since we know you are driving air shouldn't be the problem unless you have something clogging your...

Q: Something with the brakes

You may have a seized brake caliper or a hose holding pressure to the brake caliper. You will need to isolate the failure by opening the bleeder on the caliper of the wheel that is seized and see if wheel...

Q: Car got hot and died

Hi. The car shuts off to protect itself as significant damage can occur without the proper amount of cooling. The first thing to check is make sure you have enough coolant. There may be 4 different lines on the tank,...

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...
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...
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.