Aeromotive 14110 User Manual

AEROMOTIVE
Part # 14110
‘99 - ’03 5.4L Ford Lightning Fuel Rails
INSTALLATION INSTRUCTIONS

CAUTION:

Installation of this product requires detailed knowledge of automotive
systems and repair procedures. We recommend that this installation be carried
out by a qualified automotive technician.

Installation of this product requires handling of gasoline. Ensure you are
working in a well ventilated area with an approved fire extinguisher nearby.
Extinguish all open flames, prohibit smoking and eliminate all sources of ignition
in the area of the vehicle before proceeding with the installation.

When installing this product, wear eye goggles and other safety apparel as
needed to protect yourself from debris and sprayed gasoline.

WARNING!

The fuel system is under pressure. Do not open the fuel system until the
pressure has been relieved. Refer to the appropriate vehicle service manual for
the procedure and precautions for relieving the fuel system pressure.

Aeromotive system components are not legal for sale or use on emission controlled motor vehicles.

The enclosed Aeromotive fuel rails utilize o-ring sealed AN-08 style ports; these ports are NOT
PIPE THREAD and utilize NO THREAD SEALANT. To use the enclosed fuel rails in your vehicle’s
fuel system you must install the necessary adapter fittings and o-rings, high pressure fuel lines
and regulator to adapt your system to the configuration and ports of these fuel rails. Please call
for a catalog of the complete line of quality Aeromotive products.

When installing o-rings it is important to place a small amount of light oil on both the o-ring and
the mating surface to ease installation and prevent damaging the o-ring.

The following installation instructions are for a typical installation, for specific year and model
installation instructions please refer to your vehicles service manual.

1. Once the engine has been allowed to cool, disconnect the negative battery cable and
relieve fuel system pressure, referring to the appropriate vehicle service manual for the
procedure on doing so.

2. Check for any dirt or debris around the fuel injectors. If any is evident, wash it off with
some solvent parts cleaner or wipe it off with a clean shop towel.

3. Disconnect the electrical connector at each injector, making note of the location of each.

4. Disconnect the supply and return fuel lines from the OEM fuel rails. Place clean shop
towels around the open fuel lines to catch any gasoline that may drip out and to prevent
any dirt from entering the fuel lines.

5. Remove the air intake tube.

6. Label and disconnect any electrical wiring, vacuum lines and throttle body components
that will interfere with the fuel rail removal and installation.

7. Remove the 4 mounting bolts that attach the OEM fuel rail to the intake manifold.

8. Place clean shop towels around the injectors to catch any gasoline that may be spilled
during their removal. Remove the injectors from the manifold by gently pulling upward
on the fuel rail / injector assembly. Keep all injectors connected to the fuel rails. If an
injector does pull out of the fuel rail, it may spill a large mount of gasoline.

9. Carefully remove the fuel injectors from the OEM fuel rail.

10. Remove the old o-rings from the fuel injectors, inspect the injectors for any dirt or debris
and clean if needed. It is suggested that the old o-rings be replaced, contact your local
auto parts store for replacement o-rings.

11. Coat the new fuel injector o-rings with a light oil to ease installation.

12. Carefully install the new injector o-rings on the injectors.

13. Install the appropriate union fittings and o-rings in each end of the fuel rail, we
recommend Aeromotive p/n 15605 for AN-06 or Aeromotive 15607 for AN-08.

14. Place a thin coat of light oil in the fuel rail injector bores and in the lower intake manifold
injector bores to help prevent cutting the o-rings during installation.