Dodge Nitro. Manual - part 138

Fig. 281: Coolant Pipe, Heater Hose & Coolant Reservoir Hose 
Courtesy of CHRYSLER LLC 

6. Connect heater hose to rear lower intake manifold. See Fig. 281.  

7. Connect coolant container hose to the rear lower intake manifold. See Fig. 281.  

8. Connect electrical connectors to fuel injectors and coolant temperature sensor.  

9. Install power steering fluid reservoir and bracket.  

10. Install upper intake manifold. See INSTALLATION.  

11. Connect the upper radiator hose to the thermostat housing. 

1 - COOLANT PIPE
2 - HEATER HOSE
3 - COOLANT RESERVOIR HOSE

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

12. Fill the cooling system.  

MANIFOLD-INTAKE-UPPER 

Fig. 282: Throttle Body Bracket 
Courtesy of CHRYSLER LLC 

1. Clean and inspect gasket sealing surfaces.  

2. Position new gasket.  

3. Install the upper intake manifold insulator foam.  

4. Install the upper intake manifold. Tighten bolts to 12 N.m (105 in.lbs.) starting in the center working 

outward in a cross sequence pattern.  

5. Install the right manifold support brackets. Tighten fasteners to 12 N.m (105 in.lbs.).  

6. Install the throttle bracket. See Fig. 282. Tighten fasteners to 12 N.m (105 in.lbs.) at the throttle body and 

28N.m (259 in.lbs.) at the cylinder head. 

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

Fig. 283: Identifying Manifold Tuning Valve & Short Runner Valve 
Courtesy of CHRYSLER LLC 

7. Connect the manifold tuning valve and short runner valve electrical connectors. 

1 - Manifold Tuning Valve
2 - Short Runner Valve

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

Fig. 284: PCV Hose, Purge Hose, Brake Booster Hose, Throttle Bracket & Electronic Throttle 
Control 
Courtesy of CHRYSLER LLC 

8. Connect the electronic throttle control harness connector.  

9. Connect the engine electrical connectors to the intake manifold.  

10. Connect the EGR tube, PCV, Purge and power brake booster vacuum hoses to the intake manifold. 

1 - PCV HOSE
2 - PURGE HOSE
3 - BRAKE BOOSTER HOSE
4 - THROTTLE BRACKET
5 - ELECTRONIC THROTTLE CONTROL

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro