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

asked by on January 13, 2016

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?
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

Car starts, dashboard lights flicker, air conditioning shuts off

Hello there, thank you for asking about your 1993 Isuzu Pickup. It sounds like a bad ground in the instrument panel circuit. Looking at the wiring diagram, I see the AC heater control panel and instrument cluster share the same...

How do i unlock my 2001 nissan altima steering wheel

Hi there. You may want to have the mechanic read this article on some possible ways to unlock the steering wheel. In most cases, the issue is caused by a malfunction within the ignition lock cylinder (where the key is...

My engine light keeps coming on. We have replaced the air/fuel ratio sensor four times.

Hey there. As you may know, this may be caused by a few different things, one of which is a faulty sensor (which you have already replaced). This may also be caused by an intake air leak, leaking or dirty...

Related articles

Symptoms of a Bad or Failing Electronic Spark Control
Common signs include engine performance issues, engine stalling, the car not starting, and the engine not sparking.
The Best Used Cars to Buy If You’re a Vet
The The best car for a vet to own largely depends on the type of practice he or she has. Large animal vets are probably going to want something that delivers a fair bit of power, and possibly even towing...
P2403 OBD-II Trouble Code: EVAP Leak Detection Pump Sense Circuit/Open
Diagnostic Diagnostic Trouble Code (DTC): P2403 P2403 code definition EVAP Leak Detection Pump Sense Circuit/Open Related Trouble Codes: P2404: EVAP Leak Detection Pump Sensor Circuit Range/Perf P2405: EVAP Leak Detection Pump Sensor Circuit Low P2406: EVAP Leak Detection Pump...