Location. Most fuel-pump relay units are located
under the dashboard near the steering column
. In some cases, the unit is located in the area where the steering column is mounted or near the engine’s firewall.
How do I know if my fuel relay is bad?
- Check Engine Light (CEL) Illuminated. …
- High Mileage. …
- Long Starting Time. …
- Engine Performance Issues – Stalling, Idling, Acceleration, Not Starting. …
- Car dies while driving. …
- Silent Fuel Pump Noise. …
- Park the car in safe and level ground.
How do you change a fuel relay?
- Disconnect the cable from the vehicle battery’s negative terminal to shut off the power. …
- Open the hood and check inside the fuse box in the engine compartment. …
- Remove the fuel pump relay, which is a cube-shaped object that connects with prongs like an electrical plug.
What fuse controls the fuel pump?
Most fuel pumps will run a
15 (Blue) 20 (Yellow) or 25 (Clear) amp fuse
. Using a fuse that’s too small will cause the fuse to blow again.
Look for the fuel pump switch or inertia switch. This is a small box with a plastic button on top and an electrical connector at the bottom. On some vehicle models, this will be located in
the luggage compartment
. Look on a side panel for a small, round button which you can pry off with a small screwdriver.
What happens when fuel relay goes bad?
If the fuel pump relay fails
the fuel pump will be left without power
. The engine may still crank when the key is turned, however it will not be able to start due to lack of fuel. This symptom can also be caused by a wide variety of other issues, so having the vehicle properly diagnosed is highly recommended.
Is it safe to bypass fuel pump relay?
Registered. Jumpering or bypassing the fuel pump relay puts a constant
+12VDC
to the fuel pump. Basically you have voltage directly from the battery to the fuel pump, even with the engine turned off. You could use a jumper assembly with a toggle switch to manually turn on and turn off the fuel pump.
Can a blown fuse prevent car from starting?
A blown fuse in the starter circuit could be the cause of
a no-start problem
. Broken or corroded wiring – Damaged or dirty wires to the battery or to the starter solenoid (or wires that are loose) can prevent sufficient power from reaching the starter.
What would cause a fuel pump not to turn on?
If the fuel pump is not coming on, and the fuse and relay are good, then it may be possible that there is a problem with the pump or the fuel pump circuit. … If it is not then there may be some sort
of wiring issue
before the fuel pump relay, perhaps a wiring issue or other problem with the ignition switch.
Why would a fuel pump not get power?
If you there is no power to the fuel pump or the relay, then
there may be a possible electrical issue with the vehicle
. … If there is an issue with the switch or the circuit, perhaps a wiring problem, then power to the fuel system may be cut off.
How do you reset a fuel pump switch?
- Turn the ignition switch OFF.
- Ensure that there is no fuel leaking in the engine compartment, along any of the lines or at the tank. …
- If no leakage and/or odor is apparent, reset the switch by pushing the reset button on the top of the switch.
How do I reset my fuel pump shut off switch?
- Locate your car’s inertial trigger or airbag control module. …
- Push the button on the inertial switch; it should be clearly marked as the fuel pump reset, and may be in a contrasting color to the case.
In the event of an accident, the “Fuel Reset Button”
will turn off the fuel pump and system.
What are the signs of a bad fuel injector?
- The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire. …
- Idling Gets Rough. …
- Your Gas Mileage Tanks. …
- The RPM Needle Starts to Dance. …
- Your Car Won’t Start.
