J2000/Sunbird V6-191 3.1L (1992)
Fuel Rail: Service and Repair
Fuel Rail Assembly Model R620 Exploded View
FUEL RAIL ASSEMBLY
An eight digit identification number is stamped on the left hand fuel rail (fueling even cylinders 2, 4, 6), as shown. Refer to this number if servicing or
part replacement is required. Part names appear in the numbered list on the disassembled view.
NOTE: Use care in removing the fuel rail assembly, to prevent damage to the injector electrical connector terminals and the injector spray tips. Prevent
dirt and other contaminants from entering open lines and passages. Fittings should be capped, and holes plugged, during servicing.
CLEAN: Before removal, the fuel rail assembly may be cleaned with a spray type engine cleaner, GM X-30A or equivalent, following package
instructions. DO NOT soak fuel rails in liquid cleaning solvent.
REMOVE OR DISCONNECT:
1.
Negative battery terminal.
2.
Relieve fuel system pressure.
3.
Intake manifold plenum.