Skip the auto shop - Our mechanics make house calls

Q: Car quit while driving then started back up. Went dead again. Would not start back up.

asked by on

Car is getting fire and checked fuel pressure with gauge. No fuel pressure. Relay and fuses r good. Not getting any power to computer port when using scanning tool. don't know know if this would have an relevance, if a electrical problem exists, but drivers side power window quit working just a few days before car quit.

My car has 20000020000 miles.

A: Hello. If you are having power supply issue...

Hello. If you are having power supply issues, you need to first suspect and test your battery. For the testing of your fuel pump, you can connect a battery charger while you are diagnosing your fuel pump. I certainly would be looking into the lack of fuel pressure first.

Scanners cannot connect for many reasons, and the window issue is not related to your car not starting. You need to check for power at the fuel pump. But before you do this, use a hammer and bang on the bottom of the tank while someone is cranking the car. If it starts or tries to start, you have a strong confirmation that you need a fuel pump. This is a fairly common failure for Fords.

After banging on the bottom of the fuel tank, I would next remove the fuel pump relay and jumper power to the pump from there. In addition, I would use a test light to confirm power is reaching the relay when the key is turned on. Keep in mind, when you first turn the key on, it will only stay on for a few seconds. So be ready to check for power immediately when the key is turned on. To jumper power to the fuel pump and check for power from the key, you will need a wiring diagram from a repair manual and a test light.

If this is something you need help with, consider having a certified mechanic, like one from YourMechanic, diagnose the loss of power and help you proceed with 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

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: How do I use the power windows?

Your car is equipped with power windows. Each door has a control for its own window, while the driver position has controls for all four, as well as the window lock button. The driver side window also has a one-touch...

Q: The car stalls - 2010 Kia Rio

Both the alternator and battery should be checked for proper operation. After being jump-started, the car should continue to run, even if the battery is dead (unless the battery has an internal short). The alternator should produce enough power to...

Q: I have a P0193 Fuel Rail Pressure Sensor High Input Code and want to know how to fix this

The code P0193 pinpoint test should be done to verify the pressures and sensor indicate the same. You most likely have a defective sensor for the fuel pressure on the fuel rail. Replace the sensor and clear the codes. If...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.