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: When I try to take off the engine felt like it wanted to fall out and violently shook until the car slowed down.

Most likely the engine has a plugged fuel filter. A plugged fuel filter will cause the engine to hesitate when under harsh throttle and make the vehicle shake. I recommend replacing the fuel filter and retesting to see if the...

Q: No power to dash when you turn key but will crank.

Check for "codes" (PCM, ECU, BCM) to see if any read out. If no codes, this is a switch (ignition), fuse, relay, and/or wiring problem which has to be tracked down systematically.

Q: My rotor button is not pointing in the right direction

As a preliminary matter, please note that occasionally the timing mark on the crankshaft pulley can be in the wrong spot if the harmonic balancer has been damaged or removed improperly (that is, removed without using the right tool to...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...