Try lowering the tank enough to get the filler hose off, then you can get a siphon hose into the filler opening. Or, you could open the fuel line at the filter, then jumper the fuel pump relay terminals. Pump will turn on and push gas out the line. Careful to get your jumper wire into the right terminals.
Full Answer
How to fix a loose fuel pump relay?
I've found the fuel pump relay connections (spade) sometimes come loose from their mountings when removing/installing relays. If you reach behind the relay and push any protruding spade connectors back toward the relay while holding the relay in the socket, some times that's all it takes to reestablish your connection.
Where is the ground wire on a fuel pump relay?
There is a brown wire ground wire at the bottom right of the fuel pump relay socket that tends to push back instead of connect when inserting the relay. Reaching behind the relay box will indicate whether the spade connector has pushed back or not.
How does the fuel pump relay coil work?
It is through pin 85, the ECU grounds the fuel pump relay to pass current through the coil to create the magnetic field. Pin 86 acts as input voltage supply to the fuel pump relay coil but unless the ground is available the current will not pass through the coil.
How many pins does a fuel pump relay have?
The fuel pump relay generally has 4 pins (3 or 5 pins is also not uncommon). Out of these 4 pins, 2 pins belong to coil arrangement or control side (85 and 86) and the other 2 pins represents contact switch or load side (87 and 30)
Why Would You Bypass Fuel Pump Relay? Symptoms of Bad Fuel Pump Relay
The issues of the fuel pump relay will surface out immediately as soon as it happens. Isn’t it?
How to Bypass Fuel Pump Relay?
Before we proceed to discuss how to bypass fuel pump relay, it is a prerequisite to understand how does the fuel pump relay works and what are the parts involved in it.
Conclusion
The vehicle ECU monitors different signals and activates the fuel pump relay to supply power to the fuel pump.
Where is the fuel pump relay?
Fuel Pump relay is the middle relay on the bracket in front of the left hand side shock tower. I'm searching for the same answer though on how to jump... I'll let you know if I find anything. But at least now you know which relay it is. ;)
What happens if the fuel pump relay doesn't work?
If it does not work properly, you get no fuel pump. Remove the bracket that holds all 3 relays and flip it over. Grab your test light and probe the biggest of the 3 wires that make a row in the center of that relay. The test light should light up.
What is the main relay?
Now, start with the first relay, the one furthest forward. That is your main relay. The main relay provides power to the fuel pump relay AND the DME. If it does not work properly, you get no fuel pump.
What to do if your transfer pump does not spin up?
IF it does not spin up (early cars run BOTH pumps off the same relay) you need to test voltage at the pump. Go back to your transfer pump (main pump on late cars) that is under the hatch, under your back seat: use your test light to make sure you have power at the pump itself: no power means bad wiring (assuming the relay is still jumpered) but the reality is that mot likely, you have a bad main relay.
What is the wire that feeds the fuel pump?
Remove the relay, look at the contact map on the side. You will see that "30" connects to "87" when the relay is switched. 30 is the wire from that main relay, 87 is the wire that feeds the fuel pump.
What jumps from 30 to 87?
Here is the actual answer to your question: you jump from "30" to "87" to power your fuel pump.
How to jumper fuel pump relay?
Or, you could open the fuel line at the filter, then jumper the fuel pump relay terminals. Pump will turn on and push gas out the line. Careful to get your jumper wire into the right terminals. You can damage the computer if you put voltage into the wrong terminal. The relay will have one hot at all times terminal- find that with a test light. Then you will jump the hot terminal to the terminal that has the fuel pump wire going to the gas tank. The relay should have terminal descriptions on it. The jumper wire goes with the two power side terminals, not with the coil side of relay. Post back if that's not clear.
How long does it take to remove a fuel pump relay?
I did this for my 2002 Grand Marquis and removed about 16 gallons in about 15 minutes. Remove the fuel pump Relay and put a decent gauge wire in the #27 and #34 terminals in the Powerbox only when you want to pump out the gas. Verify these 2 terminals with the article about jumping a Relay. This will cause the fuel pump to run continuously, use only when ready.
How to drain fuel from a fuel pump?
Option 1 the easiest way is to jump the fuel pump relay with the fuel feed line at the engine disconnected from the engine and connected to some sort of catch basin (bucket , gas can , etc.) this allows you to use the vehicles fuel pump to drain the fuel. All you have to do is find the fuel pump relay, then jump the positive side (key off) to power to make the fuel pump run, use that to pump all the bad fuel out.
What happens if a fuel pump is dead?
If the pump is working you can jump the relay and it will pump fuel. If the pump's dead then some pumps will allow fuel through, it's worth a try.
What happens if a gas pump starts with a gas down carb?
If it starts with gas down carb, then pump, pump relay, is faulty, or plugged fuel filter. Or carb floats sticking.
How to fix evap vent solenoid?
Evap vent solenoide is stuck closed. Start by replacing the valve and checking the hose to the valve for clo gs...this is located between the cab of the truck and the bed of the truck on the driver side (can be seen if you look down through the crack)....If this doesn't work then check the fuel filler neck hose for kink or restriction this is the hose that goes from the gas cap to the fuel tank.
What are the terminal numbers on a FPR relay?
Most of the time, the two terminals at the FPR will be numbered 30 and 87. Look on the relay for terminal identification. You are jumping the main power feed line at the relay to the line going to the fuel pump. Do not guess, or you could damage your engine computer if you put the jumper wire in the wrong terminal. At the relay, you are jumping the power side of relay. The other terminals at the relay are for the coil side of the relay. Jump the power side!
