GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Denali 🢒 Engine 🢒 Engine Controls and Fuel - 6.6L (LMM) 🢒 Fuel Pressure Relief Valve Replacement

Removal Procedure

    Object Number: 1739303 Size: SH
  1. Remove the glow plug module and bracket. Refer to Glow Plug Control Module Replacement .
  2. Remove the fuel pressure relief valve from the left fuel rail.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1739303 Size: SH
  1. Install the fuel pressure relief valve to the left fuel rail.

    2. Tighten
    Tighten the valve to 100 N·m (74 lb ft).

  2. Install the glow plug module and bracket. Refer to Glow Plug Control Module Replacement .
  3. Prime the fuel system. Refer to Fuel System Priming .
  4. Start the engine. If the engine stalls, repeat the above step.
  5. Once the engine starts, inspect for fuel leaks.