TrailBlazer 2WD L6-4.2L VIN S (2003)
1. Lubricate the new lower injector O-ring seals (4) with clean engine oil.
2. Install the new O-ring seals (4) on the spray tip end of each injector (3).
3. Install the fuel rail assembly.
4. Install the fuel rail attaching bolts.
NOTE: Refer to the Fastener Notice in Service Precautions.
Tighten
Tighten the bolts to 10 N.m (89 lb in).
