Where is the fuel pump relay located on a 1987 Chevy Silverado? It is located on the passenger side firewall in the engine compartment.
How do you test a Chevy fuel pump relay?
How to test a fuel pump relay
Park the car in safe and level ground. Step 2: Turn the ignition key in the ON position but don’t start the car. Step 3: Raise the hood and locate the fuel pump relay. Step 4: The fuel pump relay will emit a clicking or buzzing sound when turning the key in the ON position.
Where is the fuel pump relay on a 1994 Chevy Silverado?
The fuel relay is located on the passenger side fire wall, “near the top of the compartment under the relay cover,” according Haynes manuals. Mounted about 6 inches to the right of the fuel pump fuse, it’s black with five wires coming out of the bottom.
What happens when fuel relay goes bad?
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. A faulty relay may allow the vehicle to be restarted a short while later, while a completely failed relay will not.
How do you reset a fuel pump relay?
The fuel pump shut-off switch has a red reset button on top of it.
Should your vehicle shut off after a crash, you may restart your vehicle:
Switch off the ignition.Switch to start position.Switch off the ignition.Switch on the ignition to re-enable the fuel pump.If vehicle does not start, repeat steps 1 through 4.
Will a fuel pump work without a relay?
It depends on how long the wire run is, how thick the wire is, how much current the pump draws, and what other types of controls you want on the pump circuit. Low current pump, short heavy wire, no funky control requirements means you can go without a relay. The opposite means a relay would be nice.
Which fuse is the fuel pump relay?
Under the Hood
One of the small, black relays is likely to control the fuel pump. Near the relay there is also typically a red, 10-amp fuse labeled “FUEL,” “F/P” or “FUEL PUMP.” If not, check under the dashboard.
What would cause a fuel pump not to get power?
In most of the cases, it is either a bad fuel pump relay or blown up fuel pump fuse which leads to fuel pump not getting power issue. But in some cases damaged fuel pump wiring, connections or a bad ground path in circuit are also common causes for no power to fuel pump.
What does a fuel pump relay do?
The fuel pump relay plays an integral role in getting fuel to your engine for combustion. Powered by the ignition and/or powertrain control module (PCM), the fuel pump relay’s main function is to provide the fuel pump with enough power. When the fuel pump relay isn’t working, then the fuel pump cannot either.
