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Go under the truck and pull the connector at the pump, why is this best way, why do it that way?? Well by going to the pump connector you are making sure the fuel pump wiring is good all the way to the pump without any break in the line from the fuel pump relay. Keep in mind the pump is only powered up while the engine is being started and of course running, so it is best that you jump the relay socket so the pump is always powered up. Most relays have a diagram on them showing which terminals are power in and power out.
Hi Anonymous, 1998 and later Sportster models circuit breaker and fuses were located in an electrical bracket behind the starter relay and data link that was mounted behind the left side panel. 1997 and earlier circuit breakers only no fuses were located under the seat and for a free wiring diagram please visit the website below and good luck.Harley Davidson Wiring Diagrams and Schematics
Hello, have you checked it with a volt meter to confirm that it is not getting power? Have you checked the fuel pump fuse to make sure that it is not blown? If the fuse is good and you have a volt meter, the fuel pump relay will have a diagram on it's side, (usually) to identify each wire. It will have 2 main power wires, one being the power source in and the other being the power source going out to the pump, usually they will be the 2 biggest prongs on the relay.
Once you identify them and verify with the key in the on position that 1 is getting 12 volts, you can use a jump wire to jump the two posts to see if the pump will power up. If the pump powers up, then you know that the pump checks out or at least for the moment as sometimes a pump can fail when it gets hot or runs for a while. But it will also let you know that you don't have a problem with the wiring harness going to the pump too.
Then if all that checks out, you can check the other wires that power the relay on and off, 1 of them will have 12 volts but you will need someone to help you as it only powers up when the key is first turned on for about 3-5 seconds or so and then powers off. It's part of the safety system, if the engine is running or if you leave the jump wire connected as I stated above and start the engine then the other wire power wire that engages the relay will stay on and with your volt meter you should see that.
If you are not getting any power to that power wire that engages the relay with the engine running, let me know and I'll try to help you diagnose the issue from there.
Hope this helps you.
The main fuel pump in a Volvo is really well built and rarely fails(Bosch simply makes great fuel pumps). A good survival trick if you think a main fuel pump might be bad... give it a quick tap with a wrench. For best results, if possible, tap the pump when cranking the engine (while power is going to the pump). If the pump is bad, often the tap will make it come to life and it may stay running until you shut it off. This trick can get you back on the road and get you home in an emergency. If it's a bad fuel pump relay, this will NOT work as there will be no power going to your pump. If this is the case, you might try the below relay bypass "jump" trick to get power going to the pump. TESTING YOUR FUEL PUMP How to "JUMP" the fuel pump circuit at your Volvo 240 fuse panel:The fastest method to make the main fuel pump run (bypassing the Fuel Pump Relay) is by jumping two circuits at the fuse panel (left side driver's kick panel).
You can make a jumper from a wire with stripped ends or even a straightened paperclip. Jump the circuits on the right side of the fuses for best results For a 1979-84 240, jump fuse circuit #5 to #7. For a 1985-93 240, jump fuse circuit #4 to #6.
If the main fuel pump doesn't begin running when jumped (you should definitely hear it humming), you either have a faulty fuel pump or faulty wiring to the pump (bad wiring is really common under an old 240, near the pump). This test of course assumes your battery is good. If one of the fuses blows during this test, the pump circuit wiring is shorting to ground somewhere between the fuse panel and the pump.
If this is a carb. bike just turn the fuel petcock to off pos. Fuel injected remove left side side cover and locate fuel pump fuse start bike pull fuse bike will stall and try to start again this will depressurize the system turn key off and do not turn on again. then at the tank connection slide the connector ring up and pull the fuel line down and when you put it back together make sure you hear it click or snap into place locking them together Good Luck
Power to the fuel pump comes from the system relay via the fuel pump fuse. The power to the relay contact is from the ignition switch via the ECM fuse. The relay is activated with power form the ECM itself and is also controlled by the "stop/run" switch on the right handlebar control, so make sure it is switched to "run".