Dodge Nitro. Manual - part 684

2. Remove air intake tube at throttle body flange (1).  

3. Disconnect throttle body electrical connector (3).  

4. Disconnect necessary vacuum lines at throttle body.  

5. Remove four throttle body mounting bolts (2).  

6. Remove throttle body from intake manifold.  

7. Check condition of old throttle body-to-intake manifold o-ring.  

REMOVAL - 4.0L 

Fig. 112: Identifying Throttle Body Flange, Mounting Bolts & Electrical Connector - 4.0L 
Courtesy of CHRYSLER LLC 

A (factory adjusted) set screw is used to mechanically limit the position of the throttle body throttle plate. 
Never attempt to adjust the engine idle speed using this screw. All idle speed functions are controlled by the 
Powertrain Control Module (PCM). 

1. Disconnect and isolate negative battery cable at battery.  

2. Remove air intake tube at throttle body flange (3).  

3. Disconnect throttle body electrical connector (2).  

4. Disconnect necessary vacuum lines at throttle body. 

CAUTION: Using a diagnostic scan tool, record any previous DTC's (Diagnostic 

Trouble Codes).

CAUTION: Never have the ignition key in the ON position when/if checking the 

throttle body shaft for a binding condition. This may set DTC's.

 

2007 Dodge Nitro R/T 

2007 ENGINE Fuel System - Nitro

  

5. Remove four throttle body mounting bolts (4).  

6. Remove throttle body from intake manifold.  

7. Check condition of old throttle body-to-intake manifold O-ring.  

INSTALLATION 

THROTTLE BODY - 3.7L 

Fig. 113: Identifying Throttle Body Flange, Mounting Bolts & Electrical Connector (3.7L) 
Courtesy of CHRYSLER LLC 

1. Check condition of throttle body-to-intake manifold O-ring. Replace as necessary.  

2. Clean mating surfaces of throttle body and intake manifold.  

3. Install O-ring between throttle body and intake manifold.  

4. Position throttle body (1) to intake manifold.  

5. Install all throttle body mounting bolts (2) finger tight. 

 

2007 Dodge Nitro R/T 

2007 ENGINE Fuel System - Nitro

  

Fig. 114: Throttle Body Mounting Bolts Tightening Sequence
Courtesy of CHRYSLER LLC 

6. Obtain a torque wrench. Tighten mounting bolts (as shown) in a mandatory torque criss-cross pattern 

sequence to 7.5 N.m (65 in. lbs.). 

Fig. 115: Identifying Throttle Body Flange, Mounting Bolts & Electrical Connector (3.7L) 
Courtesy of CHRYSLER LLC 

7. Install electrical connector (3).  

8. Install necessary vacuum lines.  

9. Install air cleaner duct at throttle body.  

10. Connect negative battery cable.  

11. Using the diagnostic scan tool, erase all previous DTC's and perform the ETC Relearn function.  

INSTALLATION - 4.0L 

CAUTION: The throttle body mounting bolts MUST be torqued to specifications. 

DO NOT OVER TIGHTEN MOUNTING BOLTS. Over tightening can 
cause damage to the throttle body, throttle plate, gaskets, bolts 
and/or the intake manifold. Proper torque of the mounting bolts is 
critical to normal operation.

 

2007 Dodge Nitro R/T 

2007 ENGINE Fuel System - Nitro

  

Fig. 116: Identifying Throttle Body Flange, Mounting Bolts & Electrical Connector - 4.0L 
Courtesy of CHRYSLER LLC 

1. Check condition of throttle body-to-intake manifold O-ring. Replace as necessary.  

2. Clean mating surfaces of throttle body and intake manifold.  

3. Install O-ring between throttle body and intake manifold.  

4. Position throttle body to intake manifold.  

5. Install all throttle body mounting bolts (4) finger tight. 

Fig. 117: Throttle Body Mounting Bolts Tightening Sequence 
Courtesy of CHRYSLER LLC 

CAUTION: The throttle body mounting bolts MUST be torqued to specifications. 

DO NOT OVER TIGHTEN MOUNTING BOLTS. Over tightening can 

 

2007 Dodge Nitro R/T 

2007 ENGINE Fuel System - Nitro