How To Check If Fuel Pump Relay Is Bad

However if the relay is faulty you may notice some problems with the car s performance. A faulty relay may allow the vehicle to be. When a relay is defective it is usually because of a bad coil or bad connection.

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A car s fuel pump relay turns on the fuel pump when the motor runs.

How to check if fuel pump relay is bad.

When either of these begin failing the current to the electrical circuit will be also fail. The most common parts to burn out or break include the contact and the coil. Check the fuel pump fuse. Often it s not the pump itself that fails to function but the power that supplies it.

Pull it out and inspect it for signs of failure. If the relay doesn. If your car starts to slow down while you are driving it may be a sign of a bad fuel relay. Grab the relay firmly on either side and pull it straight up and out from the terminals of the fuse box.

Consult your owner s manual or a service manual to find the location of your fuel pump relay. Pull the relay straight out from the fuse box to remove it. Your car s fuel pump relay may be able to supply enough power to the vehicle to allow you to drive it. How to tell if fuel pump relay is bad while driving.

If you can t find the fuel pump relay check your vehicle s manual to see if it lists the location. If the fuse is blown it will be broken or burned. Testing the relay of a fuel pump is relatively simple as it does not have many parts. If the fuel pump relay has an issue while the vehicle is operating it will cut off power to the fuel pump which will cause the engine to stall.

Check in your owner s manual for the location of the fuse box then find the fuse that corresponds to the fuel pump. To check both operations remove the relay by pulling it out of its socket.