Question about 2004 Buell Lightning XB9S

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Fuel pump relay fuse

Fuel pump not turning on when on/off switch is in on possition

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Check your buse fuse, the big ones. you can switch them to check witch one is bad.

Posted on Aug 13, 2014

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My pcm fuse blows every time i turn on the switch but if a remove my fuel pump relay switch the pcm fuse does not blow 03 alvalanche


fuel pump is bad,your relay will be also from trying to start pump.there is an outside chance your relay is bad,easier to change that first

Mar 28, 2014 | 1998 Chevrolet S-10 Pickup

1 Answer

1989 f-250 inertia fuel shut-off switch switch location


This should be in the owner's manual. I found the below on autozone.com, their repair help location:
An inertia switch is used as a safety device in the fuel system. The inertia switch is located in the cab, generally under the dashboard on the right side. It is designed to open the fuel pump power circuit in the event of a collision. The switch is reset by pushing each of 2 buttons on the switch simultaneously (some models use switches with only one reset button). The inertia switch should not be reset until the fuel system has been inspected for damage or leaks.
When the ignition switch is ON , it turns the EEC power relay ON . The EEC power relay provides power to the powertrain control module (PCM) and the control side of the fuel pump relay. Power for the fuel pump(s) is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flows through the fuel pump relay and inertia switch to the fuel pump(s). The fuel pump relay is controlled by the PCM.
When the ignition switch is turned ON , the fuel pump(s) will operate. If the ignition switch is not turned to the START position the PCM will shut the fuel pump(s) OFF after 1 second. The PCM will operate the fuel pump(s) operate the fuel pump(s) when the ignition switch is turn to START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump(s) unless the engine stops, drops below 120 rpm or the inertia switch is tripped.

Dec 28, 2013 | 1989 Ford F 250

1 Answer

Fuel pump will not turn on and turn signals will not work while key is in on possition


check fuses, and fuel relay. lol. look in book that came with car.

Nov 03, 2013 | 1999 Oldsmobile Alero

1 Answer

Where is the fuel relay


There is a fuse for the fuel on the firewall inside the cab:



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Fuel Pump The fuel delivery system uses either a high or low-pressure in-line or in-tank electric fuel pump, with some models equipped with both. It is a recirculating system that delivers fuel to a pressure regulating valve in the throttle body and returns excess fuel from the throttle body regulator back to the fuel tank. The electrical system uses two types of control relays, one controlled by a vacuum switch and the other controlled by the powertrain control module (PCM) to provide power to the fuel pump under various operating conditions.

An inertia switch is used as a safety device in the fuel system. The inertia switch is located in the cab, generally under the dashboard on the right side. It is designed to open the fuel pump power circuit in the event of a collision. The switch is reset by pushing each of 2 buttons on the switch simultaneously (some models use switches with only one reset button). The inertia switch should not be reset until the fuel system has been inspected for damage or leaks.
When the ignition switch is ON, it turns the EEC power relay ON. The EEC power relay provides power to the powertrain control module (PCM) and the control side of the fuel pump relay. Power for the fuel pump(s) is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flows through the fuel pump relay and inertia switch to the fuel pump(s). The fuel pump relay is controlled by the PCM.
When the ignition switch is turned ON, the fuel pump(s) will operate. If the ignition switch is not turned to the START position the PCM will shut the fuel pump(s) OFF after 1 second. The PCM will operate the fuel pump(s) operate the fuel pump(s) when the ignition switch is turn to START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump(s) unless the engine stops, drops below 120 rpm or the inertia switch is tripped.

May 24, 2010 | 1992 Ford F250

1 Answer

2001 Ford Explorer won't start- not a battery problem- all electrical is fine and it cranks but doesn't seem to get fuel??


hi first off, have you checked your fuses, this could be an obviuse thing but most people dont, relays in the fuse box? find the relay for the fuel pump and tap it it might be the internal switch has stuck and might need replacing, also, when you turn your ignition on, do you hear a whirling sound from the rear of the vehicle? if you turn your ignition on but only to the first position not cranking, keep listening to see if you can hear the pump cut in, this will last a few seconds if not check the first bits that i said, then you will have to get the fuel pump in the tank tested, you could go under the hood( i think thats what you say in the USA) locate the fuel line, remove the line to the supply put a bucket under it or somthing to catch the fuel if it works, turn ignition to the first possition if you do not get any fuel out, then revert back to the above....hope this helps

Feb 08, 2010 | 2001 Ford Explorer

1 Answer

No power to fuel pump plug near pump but has power to relay fuse n relay ok


test the continuity of the wire from the the relay to the pump. if you have power to the relay but not through it this relay is either stuck in the circuit open position(circuit not completed). most relays have a signal line usually comming from the ignition switch to trip the relay. if this relay has a removable top remove it. if not put you fiinger on it and have some one turn the key on you should be able to feel and/or hear this relay ingage if its working. have you check the line to the pump with a volt meter? run a wire from the possitive side of the battery to the possitive side of the pump to make sure the pump works. this circuit may need a complete circuit to ground for the circuit to work.

Dec 07, 2009 | 1990 Nissan Hardbody King Cab

1 Answer

No power to fel pump


Hi the ignition was turned to the acces. possition
it needs to be turned to the RUN possition.there is no power to the fuel pump only in the CRANK and RUN possition
then if there is still no power there then you need to trace the wiring
hope this helps

May 17, 2009 | 2001 Chevrolet Tahoe

1 Answer

1988 ford truck f-150 xlt lariat cant get current to fuel pump


Have you checked the 'inertia switch' which in the event of an accident shuts off the fuel supply to prevent a fire . It's usually located in the cab on pass. side. Some models have one reset button, some 2 which have to be pressed at the same time. If that's not it, here's how the power to the pump SHOULD work, you will have to follow the path to see where it stops. When you turn the key on it turns on the EEC power relay on, this relay then provides power to the PCM (power control module) and the control side of the fuel pump relay. Power for the fuel pump is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse current flows thru the fuel pump relay and inertia switch to the fuel pump. The fuel pump relay is controlled by the PCM. When the ignition switch is turned on the fuel pump will operate, if the switch is NOT turned to start position, the PCM will shut off the fuel pump off after 1 second. This is to avoid flooding the engine when it is not running, just key on. So check out to see if you have a fuse link or a high current fuse and if they are blown.

Apr 14, 2009 | 1998 Ford F150 Regular Cab

2 Answers

Fuel pump problems 2003 s10 chev 4.3 v6


Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.

Apr 01, 2009 | 2003 Chevrolet S-10

1 Answer

Fuel pump or relays in motor


get in the truck roll up all windows and make it as quite as possible. turn the key to the on possition without cranking engine and lisen for a buzz sound that last 2 to 3 seconds, if you dont hear this then the fuel pump is not working. change the fuel pump relay if this dont work change the fuel pump.

Jan 14, 2009 | 2005 Ford Excursion

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