Skip the auto shop - Our mechanics make house calls

Q: Engine lost power and now won't start.

asked by on

I was driving my car home when it started to lose power and the Check Engine Light came on. The car stopped and when I went to restart it, it sounded like it wanted to start, but wouldn't turn over all the way.

Hi there. This can be caused by any number of different problems. Most of the time if the vehicle starts to gradually lose power and then it turns off it is caused by a failing fuel pump. It can be a sensor or other electrical issue, but the fuel system is the most common. You can do a preliminary check by tuning the key on and listening for a buzzing from the fuel tank indicating that the fuel pump is turning on. If you do not hear anything then the pump has likely failed. If it comes on then a fuel pressure test with a pressure gauge needs to be performed. For a test like this and a pending fuel pump replacement you should enlist the assistance of a certified mechanic, like one from YourMechanic, to get your car started again.

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: DTC CODE P1604

Hello. P1604 is the trouble code for an issue with the vehicle's starting system circuit. This code is set off when the computer detects that the starter was not cranking when commanded to, or that the starter was continuing to...

Q: P0304 Misfiring on Cylinder 4

Hello. If the spark plug and the coil have been replaced, then a compression test needs to be done. It is common for the valve seat to fail and cause this. When it fails, it causes low compression which then...

Q: I took my BMW z3 in to the shop to get an oil change. When I picked it up the engine light was on. The car is running great though

The oil change process is generally a very simple one, but it does involve moving panels and some shops do a brief inspection on the vehicle as well. It is not likely that the Check Engine Light coming on is...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...