AEM 25-109BK High Volume Fuel Rail - Manual (Page 3)

Read and understand these instructions BEFORE attempting to install
this product.
Note: This fuel rail kit requires the removal and reinstallation of fuel system related components.
If you are not familiar with the installation and/or the operation of these components then please
refer this installation to a qualified professional.
• Do not smoke while working on the fuel system.
• Keep open flames and/or sparks away from your work area.
• Be sure to relieve the fuel pressure while the engine is off.
1) Getting started
a) Make sure vehicle is parked on a level surface.
b) Set parking brake.
c) Disconnect negative battery terminal.
d) If engine has run within the past two hours let it cool down.
e) Clean the area around the fuel rail so that dirt cannot get into the engine.
2) Relieving fuel pressure
a) Remove the fuel filler cap.
b) On models equipped with a 6mm service bolt: (Fig. 1)
i) Use a box end wrench on the 6mm service bolt on top of the fuel filter or fuel rail, while
holding the special banjo bolt with another wrench.
ii) Place a rag or shop towel over the 6mm service bolt.
iii) Slowly loosen the 6mm service bolt one complete turn.
iv) Leave service bolt loose until all pressure has been relieved.
v) Retighten service bolt to 10lb-ft.
Fig. 1
WARNING!
Service Bolt
Fuel Filter
Shop Towel