When does a fuel pump relay need to be replaced?

If your engine stalls and refuses to restart, you’re having a completely failed fuel pump relay and must have it replaced. If you’re lucky and your car restarts after a short while, your fuel pump relay is faulty, which requires immediate inspection.

What are the problems with replacing a fuel pump?

Fuel filter; this should always be replaced with the pump because even a partially clogged filter is a pump killer. Stuck fuel pressure regulator. Restriction in the return line to the fuel tank. (Disconnect and try blowing through it) Fuel pump relay getting hot and breaking down.

What causes fuel pump relay to get hot?

Fuel pump relay getting hot and breaking down. A chronically dragging fuel pump over the long term draws excess elec. current and over time this can burn the points in the relay. (Remove the plastic cover from the pump relay and eyeball the contact points inside to see if they’re badly burned and pitted)

What happens when you replace the fuel filter?

What to do if your car wont start after replacing the fuel pump?

Car won’t start even after I replaced the fuel pump. Car won’t start and turned off while driving. Replaced the fuel pump and I can hear it working. The car still won’t start.

Can a clogged fuel filter be fuel related?

Thank Andrew. If the fuel pump has been replaced and your issue is still fuel related you may have a clogged fuel filter or malfunctioning fuel injectors. If all of these parts are known to be functioning properly the issue is likely not fuel related.

Where is the fuel pump in a car?

The fuel pump is located in the fuel tank, near the rear of the vehicle and can usually be heard when the engine starts. A healthy fuel pump plus a healthy fuel pump relay will often produce a variation of a low volume hum or whine which can be heard from inside the vehicle, or from the outside, near the fuel tank.

When does a fuel pump relay need to be replaced?