Dodge Nitro. Manual — part 662

Fig. 27: Removing/Installing Fuel Injectors Electrical Connectors
Courtesy of CHRYSLER LLC

10. Push red colored slider away from injector (1). While pushing slider, depress tab (2) and remove

connector (3) from injector. The factory fuel injection wiring harness is numerically tagged (INJ 1, INJ 2,
etc.) for injector position identification. If harness is not tagged, note wiring location before removal.

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro

11. Disconnect electrical connectors at throttle body sensors.

Fig. 28: Identifying Fuel Line, Mounting Bolts, Electrical Connectors & Fuel Rail
Courtesy of CHRYSLER LLC

12. Remove four fuel rail mounting bolts (2).

13. Gently rock and pull left side of fuel rail until fuel injectors just start to clear machined holes in cylinder

head. Gently rock and pull right side of rail until injectors just start to clear cylinder head holes. Repeat
this procedure (left/right) until all injectors have cleared cylinder head holes.

14. Remove fuel rail (with injectors attached) from engine.

15. If fuel injectors are to be removed, refer to Fuel Injector REMOVAL.

INSTALLATION

FUEL RAIL

1. If fuel injectors are to be installed, refer to INSTALLATION .

2. Clean out fuel injector machined bores in intake manifold.

3. Apply a small amount of engine oil to each fuel injector O-ring. This will help in fuel rail installation.

4. Position fuel rail/fuel injector assembly to machined injector openings in cylinder head.

5. Guide each injector into cylinder head. Be careful not to tear injector O-rings.

6. Push right side of fuel rail down until fuel injectors have bottomed on cylinder head shoulder. Push left

fuel rail down until injectors have bottomed on cylinder head shoulder.

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro

7. Install four fuel rail mounting bolts and tighten to 11 N.m (100 in. lbs.).

8. Install six ignition coils. Refer to INSTALLATION .

9. Connect electrical connectors to throttle body.

Fig. 29: Removing/Installing Fuel Injectors Electrical Connectors
Courtesy of CHRYSLER LLC

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro

10. Connect electrical connectors at all fuel injectors. Push connector onto injector (1) and then push and lock

red colored slider (2). Verify connector is locked to injector by lightly tugging on connector.

11. Connect necessary vacuum/vapor lines to throttle body.

12. Connect fuel line latch clip and fuel line to fuel rail.

13. Install air box to throttle body.

14. Install air duct to air box.

15. Connect battery cable to battery.

16. Start engine and check for leaks.

INSTALLATION

Fig. 30: Identifying Fuel Line, Mounting Bolts, Electrical Connectors & Fuel Rail
Courtesy of CHRYSLER LLC

1. If fuel injectors are to be installed, refer to Fuel Injector INSTALLATION.

2. Clean out fuel injector machined bores in intake manifold.

3. Apply a small amount of engine oil to each fuel injector O-ring. This will help in fuel rail installation.

4. Position fuel rail/fuel injector assembly to machined injector openings in cylinder head.

5. Guide each injector into cylinder head. Be careful not to tear injector O-rings.

6. Push right side of fuel rail down until fuel injectors have bottomed on cylinder head shoulder. Push left

fuel rail down until injectors have bottomed on cylinder head shoulder.

7. Install four fuel rail mounting bolts (2) and tighten to 11 N.m (100 in. lbs.).

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro