MMR Fuel Rail Kit:
Tools I Used:
Ford fuel line discconect tool
8mm(5/16) sockect
Needle nose plyers
Adjustable wrench
Towel(something to soak up gas)
Permatex thred sealer
Elbow grease
First off let the car sit while its off for a bit so theres no pressure in the fuel line. Remove the four little bolts that hold the stock fuel rails(2 on each). Remove the the 2 bolts that hold the fuel pressure sensor to the drivers side fuel rail. Remove the sensor from the fuel rail slowy and no fuel should shoot out it will just sit there.
Gently pull up on the passenger side rail and the injectors and rail will come out together.
Place a towel under the fuel rail and remove the injector retaining clips on the fuel rail. I used needle nose plyers and these pulled right off.
Gently remove each injector from the rail one at a time letting excess fuel to drain onto the towel.
Do the same for the drivers side fuel rail.
Next remove the fuel line from the drivers side fuel rail using a fuel line disconnect tool. (there is a black retaining clip that just snaps off then you push the tool into the connection and tug on it till it comes apart.)
I started at the passengers side and worked my way closer to the fuel line connection as i removed the injectors that way less fuel will be in the rails to spill when u do discconect the fuel line.
Comparison shot:
Install the injectors on the new passenger side fuel rail(they just push in) make sure you lube all the o-rings with a little motor oil to keep them from tearing.
Install new passenger side fuel rail, gentley slide the injectors into the intake make sure you get good seats (the green o-rings on the bottom of the fuel rails should not be visible) Then bolt the fuel rail into place reusing the 2 stock bolts.
Install the injectors on the drivers side fuel rail and reconnect the fuel line (it just pushes into place, you made need to wiggle it a bit to get the spring to lock on, dont forget to put the black retaining clip on too)
Install the drivers side fuel rail and bolt it down.
Put the fuel pressure sensor thing back on the new rail. (Note I installed a UPR fuel gauge adaptor too.) And bolt it down.
Cleaned up the fuel gauge wires with some stock plastic tubing.
Next i installed the cross over line.(note this fuel kit lets you run the line in the fron or back of the fuel rails i chose the back)
I lubed up the connections with oil and slipped the hose on nice and flush. I also use thread sealer on all the threaded connectors.
Check your work and make sure all the injectors are seated and the connections are tight.
CHECK FOR LEAKS!!!!
Just turn your key to the on position and the fuel lines will pressurize check all connection for leaks. Start the car made take a few cranks as the fuel rails are filling. Let it idle. Check for leaks! Rev it a bit check for leaks again lol. I then took it for a 5-10 min drive parked let it idle and looked everywhere for leaks again.
All done!
Tools I Used:
Ford fuel line discconect tool
8mm(5/16) sockect
Needle nose plyers
Adjustable wrench
Towel(something to soak up gas)
Permatex thred sealer
Elbow grease
First off let the car sit while its off for a bit so theres no pressure in the fuel line. Remove the four little bolts that hold the stock fuel rails(2 on each). Remove the the 2 bolts that hold the fuel pressure sensor to the drivers side fuel rail. Remove the sensor from the fuel rail slowy and no fuel should shoot out it will just sit there.
Gently pull up on the passenger side rail and the injectors and rail will come out together.
Place a towel under the fuel rail and remove the injector retaining clips on the fuel rail. I used needle nose plyers and these pulled right off.
Gently remove each injector from the rail one at a time letting excess fuel to drain onto the towel.
Do the same for the drivers side fuel rail.
Next remove the fuel line from the drivers side fuel rail using a fuel line disconnect tool. (there is a black retaining clip that just snaps off then you push the tool into the connection and tug on it till it comes apart.)
I started at the passengers side and worked my way closer to the fuel line connection as i removed the injectors that way less fuel will be in the rails to spill when u do discconect the fuel line.
Comparison shot:
Install the injectors on the new passenger side fuel rail(they just push in) make sure you lube all the o-rings with a little motor oil to keep them from tearing.
Install new passenger side fuel rail, gentley slide the injectors into the intake make sure you get good seats (the green o-rings on the bottom of the fuel rails should not be visible) Then bolt the fuel rail into place reusing the 2 stock bolts.
Install the injectors on the drivers side fuel rail and reconnect the fuel line (it just pushes into place, you made need to wiggle it a bit to get the spring to lock on, dont forget to put the black retaining clip on too)
Install the drivers side fuel rail and bolt it down.
Put the fuel pressure sensor thing back on the new rail. (Note I installed a UPR fuel gauge adaptor too.) And bolt it down.
Cleaned up the fuel gauge wires with some stock plastic tubing.
Next i installed the cross over line.(note this fuel kit lets you run the line in the fron or back of the fuel rails i chose the back)
I lubed up the connections with oil and slipped the hose on nice and flush. I also use thread sealer on all the threaded connectors.
Check your work and make sure all the injectors are seated and the connections are tight.
CHECK FOR LEAKS!!!!
Just turn your key to the on position and the fuel lines will pressurize check all connection for leaks. Start the car made take a few cranks as the fuel rails are filling. Let it idle. Check for leaks! Rev it a bit check for leaks again lol. I then took it for a 5-10 min drive parked let it idle and looked everywhere for leaks again.
All done!
Last edited:
