Removal Procedure

REMOVAL PROCEDURE

Tools Required

^ J 34730-1A Fuel Pressure Gauge

^ J 37088 Fuel Line Quick-Connect Tools

NOTICE:

^ Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips. Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.

^ Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and passages.

1. Relieve fuel system pressure.

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2. Remove the air intake duct.

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3. Remove the EGR pipe at throttle body spacer.

4. Remove the brake booster vacuum hose at intake manifold vacuum fining. Refer to Vacuum Booster System.

5. Remove the front bank spark plug wires. Refer to Engine Electrical.

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6. Remove the MAP sensor electrical connector (1) from the MAF sensor (2).

Fuel Injector Above Intake Port:

7. Remove the fuel injector electrical connectors from the fuel injectors.

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8. Lay the harness aside.

9. Remove the fuel rail ground wire (7) bolt at the rear cylinder head.

10. Remove the fuel pressure regulator (1) from the fuel rail. Refer to the Fuel Pressure Regulator Replacement.

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11. Remove the crankcase ventilation vacuum lines.

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12. Remove the quick-connect fittings (2) at the fuel rail. Refer to Quick Connect Fitting(s) Service (Metal Collar).

13. Remove the fuel rail end-point bracket retainer bolt.

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14. Remove the throttle body mount bolts.

15. Remove the throttle body. Refer to Throttle Body Assembly Replacement.

16. Remove the throttle body spacer (3).

17. Remove the intake manifold to throttle body spacer O-ring seal.

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18. Release the locking tabs (8) on fuel rail by pushing toward center of intake manifold and pry each injector out of intake manifold using J 41081.

Fuel Rail Assembly And Intake Manifold:

19. Lift the fuel rail and move the fuel rail toward the left hand side of the vehicle until the fuel pipes clear the intake plenum.

APPLICATION

20. An eight digit identification number is stamped on the fuel rail assembly. The model identification number contains the Julian Date, the year, and the shift. Refer to this model identification number if servicing or part replacement is required.