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The best way to see if the fuel pump relay is good or bad is just replacing it with a new one. Be sure and check the fuel pump fuse to make sure it is not blown. Also be sure and replace the fuel filter as it may be clogged. If all this is good and the fuel pump still will not run is more than likely defective. In fact the pump can be running and still not be able to pump fuel.
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∙ 11y ago
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If fuel pump relay is bad will fuel pump still work?
If the relay is bad, then the fuel pump will not work.
How do I know if I have a bad Fuel pump or fuel relay?
Bypass the relay and if the pump works the relay is bad.
How can you test the pump if not working?
If the fuse & fuel pump relay are good then more than likely the pump is bad.
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
How can you tell when you have a bad fuel pump on a Chevy silverado?
Fuel pressure test. Of course if it is not running, fuse and relay are good then it is bad.
How do you test the fuel pump relay on a 92 dodge shadow?
I believe that you can switch the Horn Relay with the Fuel Pump Relay and if the horn no longer works and the Fuel Pump does then that relay went bad... try that, its a sure fire way to know whats wrong... If it checks out good it might be a Defective Fuel Pump.
What happens if fuel relay goes bad?
If the fuel pump relay is defective the fuel pump will not run.
How do test the fuel pump relay to see if it's bad in a 1996 Chevy Suburban?
pull the fuel pump relay and put it in another location that uses the same relay...like the A/C relay.
What are the symptoms of a bad fuel pump relay?
The main relay and the fuel pump relay are the same. Take the fuel pump relay and swap it with the main relay and see if that will help you....
What if fuel shut off switch is not tripped?
If your fuel pump is not running , it could also be the fuse for the fuel pump relay , the fuel pump relay , a bad electrical connection , or a bad fuel pump
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.
Can the fuel pump relay be bad if pump works?
If the pump is running the relay is good.
