What to do if your fuel pump relay is not in the fuse box?
If the relay is not in the fuse box, check the manual or with your mechanic. Remove the fuel pump relay, which is a cube-shaped object that connects with prongs like an electrical plug. Disconnect the plug-in (and fuse, if needed) to the relay to remove it.
Where is the fuel relay on my car?
Open the hood and check inside the fuse box in the engine compartment. The fuel relay is located here on most cars. Check the underside of the fuse box lid for a diagram showing the fuses/relays in the box and their locations. If the relay is not in the fuse box, check the manual or with your mechanic.
How often should I change the fuel pump relay?
Repeat at least 5 times; the recommended number can vary, depending on the vehicle. You can test the fuel pump relay by swapping it with a similar one in the fuse box. The air conditioner relay is often close enough. If the car starts with the second relay connected, the fuel pump relay is bad.
How many pins does a fuel pump relay have?
The fuel pump relay does often have 4 pins, and in this case, it is often easy. If your relay has more pins and not the same numbers mentioned here, you need to check a wiring diagram. Lift it and check under it for the numbers 30, 85, 86, and 87. If you locate these numbers, you can put the fuel pump relay back.
What does a bad fuel pump relay do?
A bad fuel pump relay will cut the power to your car and stall the engine while you are driving. Keep in mind that a bad fuel pump relay might be faulty or in total failure. In either example, the engine might stall. A relay that is faulty might allow you to restart your engine after you give it a break.
What are the symptoms of a bad fuel pump relay?
One of the first symptoms of an issue with the fuel pump relay is an engine that suddenly stalls. 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.
Is there a relay switch for the fuel pump?
In addition to controlling the flow of fuel to the engine, the relay also keeps the electric fuel pump from functioning after a collision, minimizing the chance of fire igniting after an accident. After a collision, the fuel pump relay switch is automatically activated, preventing the vehicle from cranking.
What does an electric fuel pump relay do?
A fuel pump relay is an electrical device much like an automotive fuse. It directs current to the electric fuel pump and ensures that the part receives enough power to operate properly, but not too much as to damage it.