If a fuel pump is going bad, it will not be able to provide enough fuel to the vehicle under extreme circumstances. By pushing the vehicle into these extreme circumstances and monitoring how the vehicle reacts, you can get an idea whether the fuel pump is still working well.Know More
Listen carefully to the engine to listen for the sound of the fuel pump engaging. The pump generally makes a whirring sound, and some electric pumps make a clicking noise. If the sound is not present or is different than it has always been, have the fuel pump checked. If the vehicle will not start at all, it might be a fuel pump problem. Check it out along with other more common causes of failed starts.
Listen to the vehicle to see if there are any problems with the engine. If it sputters or stalls, the fuel pump might not be providing fuel consistently. Although there are other causes for sputtering and stalling, have the fuel pump checked too.
Push the vehicle to accelerate rapidly. If the engine is not getting enough fuel, the acceleration might not be smooth or the acceleration might be slower than usual. This is a sign the fuel pump could be failing.
Driving the vehicle up a steep hill is another time where the fuel pump is under strain. If the vehicle stalls, slows or shuts down completely, this is a sign the fuel pump might be unable to handle this extreme condition and is starting to fail.
Have the fuel pump checked with a fuel pressure gauge. This is a definite method to determine if the fuel pump is having problems before it fails completely.
The design of the fuel pump inertia switch causes it to turn off the fuel pump if a vehicle is involved in an accident. However, in certain incidents such as a blown tire or hitting a pothole in the road, the switch has the potential to trip. If an automobile is not operating correctly, the manufacturer recommends that the switch be checked.Full Answer >
To replace a fuel pump, stop the flow in the fuel line, and loosen the screws and hoses that hold the pump in place to remove it, says Briggs & Stratton. Use parts from a fuel pump replacement kit to install the new accessories, then install the new pump.Full Answer >
There are a few common signs that a fuel pump is starting to fail, including the engine sputtering at high speed. This is the most common early sign that there is a problem, and it generally occurs after driving for several miles without incident.Full Answer >
Check the pressure of a vehicle's fuel pump by hooking a pressure gauge to the fitting of the fuel pump, having an assistant rev the engine and checking whether the pressure matches the vehicle's specifications. Eliminate the filter as the source of the problem before conducting this test.Full Answer >