Sierra 1500 4WD V8-6.0L (2007)
20. Remove the fuel rail crossover pipe retainer screws (2).
21. Remove the fuel rail crossover pipe retainers (3).
22. Remove the fuel rail crossover pipe (1) from the fuel rails.
23. Remove and discard the fuel rail crossover pipe O-ring seals (4).
Installation Procedure
1. Lubricate the NEW fuel rail crossover pipe O-ring seals with clean engine oil.
2. Install NEW fuel rail crossover pipe O-ring seals (4) onto the crossover pipe.
3. Install the fuel rail crossover pipe (1) into the fuel rails.
4. Install the fuel rail crossover pipe retainers (3).
Notice: Refer to Fastener Notice.
5. Install the fuel rail crossover pipe retainer screws (2).
Tighten the screws to 3.8 N.m (34 lb in).
