Sierra Classic 2500 4WD V8-8.1L (2007)
Fuel Pressure Pulsation Damper: Service and Repair
FUEL PULSE DAMPENER REPLACEMENT
REMOVAL PROCEDURE
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With CH 48027) Fuel Pressure Relief (Without CH 48027).
2. Remove the engine sight shield.
3. Clean any dirt from the fuel pressure dampener retainer and the surrounding area.
4. Remove the fuel pressure dampener clip (1) and dampener.
5. Remove the fuel pressure dampener backup ring.