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First check your fuse. Then figure out the layout of the pins on your relay. Two of them are for the coil and the other two are for the switch. There should be a diagram on the relay or there will be pin numbers. 85 and 86 are for the coil, 30 and 87 for the switch. In the latter case 30 is always hot ( you can test with a volt meter ). Disconnect your battery ground and figure out where the corresponding slots on the mount are for each pin. Use a jumper to connect the slots for the switch (30 and 87). Reconnect your battery ground and go to your fuel tank, you should hear your fuel pump turn on. If not the pump is bad. If it does it's probably your relay. To test the relay you can put power ( with a 5 amp fuse ) to terminal 85 and ground to 86 ( the switch ) and the relay should click. With an ohm meter make sure there is continuity between 30 and 87 when the coil terminals have power and closed ( no continuity ) when the power is taken away from the switch.
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How do you troubleshoot a fuel pump relay?
Swap it with a known good one.
What does it mean when the fuel relay and the fuel pump clicks?
that means both the relay and fuel pump are accuratelly working.
What would keep the Fuel pump relay from working the pump fuel?
Bad relay, No power to relay, Wiring from relay to pump and our most likely problem is, the fuel pump is bad. changed it already
What would keep the fuel pump relay from working the fuel pump?
check fuel pump fuse..
Why is the fuel pump on your 1988 ford ranger not returing fuel?
relay is giving power to other relay pump not working
Will the fuel pump relay make the fuel pump cut off and on?
yes, the purpose of the relay is to signal the pump to turn on and off, if its not working at all the fuel pump will not turn on.
Will a fuel pump relay stop fuel pump from working?
If the fuel pump relay switch is bad then the fuel pump will not be turned on. Think of the relay like a light switch. If the switch has a bad connection then the light doesnt work.
Will a bad fuel relay stop the starter from working?
No, it shouldn't have anything to do with the starter. A bad fuel relay will stop the fuel pump from working.
Can a bad fuel pump relay prevents the fuel pump from working?
Yes, most definitely.
How do you know if your fuel pump relay is not working if it isn't can it cause flooding?
I doubt that it would be the fuel pump relay. If it's a throttle body injection vehicle, the injector could be stuck. But you wouldn't get ANY fuel into the engine if the fuel pump isn't working. Relay can be tested by turning key on but not starting. if you hear fuel pump 'HUMM', you know pump and relay are working. If no firing at keystart and experiencing flooding, not a fuel pump issue. There is a spark issue of some kind.
What would stop a Chevy Malibu fuel pump from working?
Pump worn out? Fuel pump relay? Fuse?
How does a person know if the fuel pump is not working and not the relay switch?
Take the relay out and hot wire the pump. If it works, its not the pump.
