Skip the auto shop - Our mechanics make house calls

Q: Car cannot pick up fuel

asked by on

My truck cannot pick up fuel for some reason. I had the fuel pump replaced but it didn't solve the problem. I checked under the dashboard on the passenger's side to see if the relay and fuses are good. I also tested how the engine is running by pouring gas into a breather hose, and it was running fine as long as there was gas. Do you have any idea what else I could check and solve this problem?

The first step is to check fuel pressure at the fuel rail. For your vehicle, pressure should be 30 to 40 PSI while running and 35 to 45 PSI with the engine off. Since you’ve already replaced the pump, if pressure is below specification, suspect a faulty fuel pressure regulator, clogged fuel filter or restricted fuel line.

If fuel pressure is OK, you’ll want to check for injector pulse. This can be done by inserting a noid light into the harness side of the injector connector. If the light flashes when the engine is cranked, the powertrain control module (PCM) is commanding the injectors on. If the light does not flash, the computer is not commanding on the injectors and the reason why will have to be determined. Potential causes include a faulty Manifold Absolute Pressure (MAP) sensor, cranks sensor (CKP) or faulty PCM.

I suggest you save both time and money by having a professional diagnosis this issue for you. The team at YourMechanic is an excellent option since we can come to you, saving you a repair bill.

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: D light indicator is blinking

Hello there, when the D light is blinking on the dashboard this means there is a transmission fault. Many different issues can cause this fault. The most common would be a low transmission fluid level, a mechanical transmission fault, a...

Q: Transmission fluid leaked while pulling a car out of mud

From the description you're giving me, I'm not sure. I know many Fords, including my F150, have a circular seal type bell housing inspection cover near the transmission. Fluid pooled in this area generally indicates an engine oil leak from...

Q: Engine and low trac lights come on

Hello. There are several things that could cause the Check Engine Light to come on after getting the spark plugs replaced by the dealership. If the Check Engine Light never turned off after the original repair was completed,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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.