Cutlass Ciera Cruiser V6-3300 3.3L MFI VIN N (1993)
4.
Fuel line bracket bolt.
5.
Fuel lines at rail. Use a back-up wrench on the fuel rail fittings to prevent them from turning.
6.
Fuel inlet and return line O-rings (1, 2), and discard.
7.
Vacuum line at pressure regulator.
8.
Rail retaining bolts.
9.
Injector electrical connectors.
10.
Fuel rail assembly.
DISASSEMBLE:
Injector O-ring seal from spray tip end of each injector. Discard seals.
ASSEMBLE:
Lubricate new injector O-ring seals with clean engine oil, and install on spray tip end of each injector.
INSTALL OR CONNECT:
1.
Fuel rail assembly in intake manifold. Tilt rail assembly to install injectors.
2.
Fuel rail attaching bolts. Tighten fuel rail attaching bolts to 10 N-m (88 lb. in.).
3.
Injector electrical connectors.
4.
Vacuum line to pressure regulator.
5.
New O-rings (1, 2) on fuel lines.
6.
Fuel feed and return lines. Tighten fuel line nuts to 23 N-m (17 lb. ft.). Use a back-up wrench on the fuel rail fittings to prevent them from turning.
7.
Negative battery terminal.
8.
Fuel filler cap.
9.
Turn ignition switch to the "ON" position for two seconds, then turn to the "OFF" position for ten seconds. Again turn to the "ON" position, and
check for fuel leaks.
10.
Intake manifold plenum.
11.
Perform the "Idle Learn Procedure." The ECM will need to relearn the IAC valve pintle position following battery reconnect.
Fuel Rail Assembly Identification
NOTE: An eight digit identification number is stamped on the left hand fuel rail (fueling even numbered cylinders 2, 4, 6). Refer to this number if
servicing or part replacement is required.
CAUTION: When servicing the fuel rail assembly, be careful to prevent dirt and other contaminants from entering open lines and passages. Fittings
should be capped, and holes should be plugged, during servicing.
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Any time the fuel system is opened for service, the O-rings should be replaced.
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Before removal, the fuel rail assembly may be cleaned with a spray type engine cleaner, GM X30-A or equivalent, following package instructions.
DO NOT soak the fuel rails in liquid cleaning solvent.
