First start with removing the fuel cap to keep from any pressure being created by expansion of fuel and vapors due to temperature changes.
Then go to the fuel rail and if the dust cap is there remove it and push the schrader valve down with a pen or a pocket screwdriver. Make sure you have a rag to catch the fuel that will spray out of the valve.
Then you may want to continue on by disconnecting the battery for safety precaution.
You then have to raise the vehicle either on 4 jack stands placed in appropriate safe corners of the vehicle or if available a hoist. Never get under a vehicle supported only by a hydraulic jack.
Then secure something under the tank that will allow you to remove the bolts holding it up and keep it supported so as not to fall on the floor.
Trans jack will suffice if your using a hoist but if on the floor you can use a jack with a square 2ftx1ft plywood.
Then remove the 3 bolts holding the tank up.
When dropping the tank if you didnt get a new filler tube grommet take special care not to damage it. It is the rubber seal here.
Once bolts are removed swing left arm holding up tank away and the rest of the other tank strap on the right will drop with tank.
FYI- Now is a good chance to replace the fuel filter.
unplug this connector prior to dropping tank and also remove fuel lines to remove fuel tank from vehicle. You will need a set of quick disconnects.
These are what need to be unplugged.
Good idea prior to starting removal of pump assembly is to clean this off with brake cleaner or compressed air.
Now is actually the best time to replace that grommet mentioned earlier for the fuel filler neck. Will just pry out and then just pop the new one in. As you can see I removed it super carefully and didnt damage the sealing part at all but its rubber and dry rots as shown here, So eventually that will get to the sealing part of the tank anyway and leak fuel on its own anyway so I just went ahead and replaced it.
Unplug this connector from the fuel pump unit.
Remove lock ring from fuel pump module, This can be done with a brass punch and hammer. Lock ring must be tapped counter clockwise to removed
Then it will take some playing with but the pump will come right out.
Then ladies and gents, the ford mustang GT stock fuel pump
Which if you will notice is actually made by walboro, lol. But tiny.
Nice new pump
Ok now to remove the pump from the module you must remove the hose clamps holding the hose to the pump and module and then remove the 4 1/4in bolts holding module together then pry the fuel sock off the pump and it will come right out. Then unplug electrical connections of pump.
Now splice new wires from new pump to old wires. Red to red and Black to black.
AND NOW A BONUS!!!!
Remember the old saying of how running your tank on empty can damage the pump because it uses the fuel to cool itself and with no fuel there it will overheat and bye bye. Well that may have been the case as the first electric fuel pumps were created but we quickly learned how to correct this with modern day tank and pump assemblies. We create a tub in the tank that the pump will sit in that will constantly be filled with fuel from the return line that dumps right back into that tub so it is constantly submersed in fuel regardless of fuel level.
Then put the pump back in the module reverse of dissasembly by first wiring the connector up for the new pump then installing the fuel pump isolater and then inserting into module re-installing the 4 1/4in bolts to hold it together then press the sock back onto the fuel pump.
When installing the module back into the tank make sure to replace the seal with a new one as the old one was subjected to fuel for so long it will have swelled and will not seal correctly. Just look how much larger it is then the new one.
After installing module back into tank which may have taken a lot of playing with
install lock down ring reverse of removal and Make sure to put di-electric grease on the connector so any water that gets kicked up there will not corrode the connections.
Then get the fuel tank completely assembled and put it on the jack with the wood for support if your working on the ground so that you may put it up or if your on a hoist a trans jack will work great. Hook up the EVAP vapor hose and the fuel feed and return lines.
Now jack the tank back up to the car and attatch the straps to the tank.
Carefully slide the fuel filler neck back into the tank as you raise it and then bolt it up.
Now clean everything back up. Connect the fuel pump harness to the vehicle harness. Drop the car, re-connect the battery, start the vehicle and check for fuel leaks. If all checks out time to go for a ride.
Then go to the fuel rail and if the dust cap is there remove it and push the schrader valve down with a pen or a pocket screwdriver. Make sure you have a rag to catch the fuel that will spray out of the valve.
Then you may want to continue on by disconnecting the battery for safety precaution.
You then have to raise the vehicle either on 4 jack stands placed in appropriate safe corners of the vehicle or if available a hoist. Never get under a vehicle supported only by a hydraulic jack.
Then secure something under the tank that will allow you to remove the bolts holding it up and keep it supported so as not to fall on the floor.
Trans jack will suffice if your using a hoist but if on the floor you can use a jack with a square 2ftx1ft plywood.
Then remove the 3 bolts holding the tank up.
When dropping the tank if you didnt get a new filler tube grommet take special care not to damage it. It is the rubber seal here.
Once bolts are removed swing left arm holding up tank away and the rest of the other tank strap on the right will drop with tank.
FYI- Now is a good chance to replace the fuel filter.
unplug this connector prior to dropping tank and also remove fuel lines to remove fuel tank from vehicle. You will need a set of quick disconnects.
These are what need to be unplugged.
Good idea prior to starting removal of pump assembly is to clean this off with brake cleaner or compressed air.
Now is actually the best time to replace that grommet mentioned earlier for the fuel filler neck. Will just pry out and then just pop the new one in. As you can see I removed it super carefully and didnt damage the sealing part at all but its rubber and dry rots as shown here, So eventually that will get to the sealing part of the tank anyway and leak fuel on its own anyway so I just went ahead and replaced it.
Unplug this connector from the fuel pump unit.
Remove lock ring from fuel pump module, This can be done with a brass punch and hammer. Lock ring must be tapped counter clockwise to removed
Then it will take some playing with but the pump will come right out.
Then ladies and gents, the ford mustang GT stock fuel pump
Which if you will notice is actually made by walboro, lol. But tiny.
Nice new pump
Ok now to remove the pump from the module you must remove the hose clamps holding the hose to the pump and module and then remove the 4 1/4in bolts holding module together then pry the fuel sock off the pump and it will come right out. Then unplug electrical connections of pump.
Now splice new wires from new pump to old wires. Red to red and Black to black.
AND NOW A BONUS!!!!
Remember the old saying of how running your tank on empty can damage the pump because it uses the fuel to cool itself and with no fuel there it will overheat and bye bye. Well that may have been the case as the first electric fuel pumps were created but we quickly learned how to correct this with modern day tank and pump assemblies. We create a tub in the tank that the pump will sit in that will constantly be filled with fuel from the return line that dumps right back into that tub so it is constantly submersed in fuel regardless of fuel level.
Then put the pump back in the module reverse of dissasembly by first wiring the connector up for the new pump then installing the fuel pump isolater and then inserting into module re-installing the 4 1/4in bolts to hold it together then press the sock back onto the fuel pump.
When installing the module back into the tank make sure to replace the seal with a new one as the old one was subjected to fuel for so long it will have swelled and will not seal correctly. Just look how much larger it is then the new one.
After installing module back into tank which may have taken a lot of playing with
install lock down ring reverse of removal and Make sure to put di-electric grease on the connector so any water that gets kicked up there will not corrode the connections.Then get the fuel tank completely assembled and put it on the jack with the wood for support if your working on the ground so that you may put it up or if your on a hoist a trans jack will work great. Hook up the EVAP vapor hose and the fuel feed and return lines.
Now jack the tank back up to the car and attatch the straps to the tank.
Carefully slide the fuel filler neck back into the tank as you raise it and then bolt it up.
Now clean everything back up. Connect the fuel pump harness to the vehicle harness. Drop the car, re-connect the battery, start the vehicle and check for fuel leaks. If all checks out time to go for a ride.
