Aspen 2007, Durango 2005-2007

Throttle Body

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Removal & Installation




CAUTION
Whenever servicing the fuel system, always works in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion. Fuel system work is made more hazardous by a hot engine. Work on a cold engine whenever possible.


WARNING
Do not use spray (carb) cleaners on any part of the throttle body. Do not apply silicone lubricants to any part of the throttle body.

3.7L & 4.7L Engines
  1. Remove the air cleaner assembly.
  2.  
  3. Perform the fuel system depressurization procedure.
  4.  
  5. Disconnect the battery negative cable.
  6.  
  7. Disconnect all vacuum lines and electrical connectors from the throttle body. Tag for location, if necessary. Electrical connectors include TPS, MAP and IAC motor.
  8.  
  9. Disconnect cables: throttle, cruise control and others fitted.
  10.  
  11. Remove the throttle body bolts.
  12.  
  13. Lift the throttle body from the intake manifold.
  14.  
  15. Put a clean rag into the intake manifold to prevent the entry of foreign matter.
  16.  

To install:

  1. Always use a new gasket. Inspect the O-ring between the throttle body and intake manifold.
  2.  
  3. Reverse the removal procedure.
  4.  
  5. Tighten the throttle body bolts to 9 ft. lbs. (12 Nm).

    Click image to see an enlarged view

    Fig. Throttle body and mounting bolts-3.7L and 4.7L engines



    Click image to see an enlarged view

    Fig. Inspect throttle body O-ring and replace if necessary

  6.  

3.7L, 4.7L And 5.9L Engine
  1. Remove the air cleaner assembly.
  2.  
  3. Perform the fuel system depressurization procedure.
  4.  
  5. Disconnect the battery negative cable.
  6.  
  7. Disconnect all vacuum lines and electrical connectors from the throttle body. Tag for location, if necessary. Electrical connectors include TPS, MAP and IAC motor.
  8.  
  9. Disconnect cables: throttle, cruise control and others fitted.
  10.  
  11. Remove the throttle body bolts.
  12.  
  13. Lift the throttle body from the intake manifold.
  14.  
  15. Put a clean rag into the intake manifold to prevent the entry of foreign matter.
  16.  

To install:

  1. Always use a new gasket. Inspect the O-ring between the throttle body and intake manifold on 3.7L, 4.7L and 5.7L engines and replace if cracked or distorted.
  2.  
  3. Reverse the removal procedure.
  4.  
  5. Tighten the throttle body bolts to the following torque:

    3.7L, 4.7L: 9 ft. lbs. (12 Nm)
     
    5.9L: 17 ft. lbs. (23 Nm)

    Click image to see an enlarged view

    Fig. Throttle body mounting bolts -5.9L engines



    Click image to see an enlarged view

    Fig. Throttle body and mounting bolts-3.7L & 4.7L engines



    Click image to see an enlarged view

    Fig. Inspect throttle body O-ring and replace if necessary



    Click image to see an enlarged view

    Fig. Thoroughly clean the gasket surface before reinstalling the throttle body-5.9L engine



    Click image to see an enlarged view

    Fig. Install a new gasket on the intake manifold. Don't forget to remove the rag before installing the throttle body

     

  6.  

5.7L Engine
  1. Remove air duct and air resonator box at throttle body.
  2.  
  3. Disconnect electrical connector at throttle body.
  4.  
  5. Remove four throttle body mounting bolts.
  6.  
  7. Remove throttle body from intake manifold.

    Click image to see an enlarged view

    Fig. The 5.7L throttle body employs four mounting bolts



    Click image to see an enlarged view

    Fig. Inspect O-ring before installing throttle body (5.7L)

  8.  

To install:

  1. Clean and check condition of throttle body-to-intake manifold O-ring.
  2.  
  3. Clean mating surfaces of throttle body and intake manifold.
  4.  
  5. Install throttle body to intake manifold by positioning throttle body to manifold alignment pins.
  6.  
  7. Install 4 mounting bolts. Refer to Torque Specifications.
  8.  
  9. Install electrical connector.
  10.  
  11. Install air plenum.
    NOTE
    A Scan Tool may be used to learn electrical parameters. Go to the Miscellaneous menu, and then select ETC Learn.


    NOTE
    If the previous step is not performed, a Diagnostic Trouble Code (DTC) will be set.


    NOTE
    If necessary, use a scan tool to erase any Diagnostic Trouble Codes (DTCs) from PCM.

  12.  

  1. Remove air duct and air resonator box at throttle body.
  2.  
  3. Disconnect electrical connector at throttle body.
  4.  
  5. Remove four throttle body mounting bolts.
  6.  
  7. Remove throttle body from intake manifold.

    Click image to see an enlarged view

    Fig. The 5.7L throttle body employs four mounting bolts



    Click image to see an enlarged view

    Fig. Inspect the o-ring before installing the throttle body

  8.  

To install:

  1. Clean and check condition of throttle body-to-intake manifold o-ring.
  2.  
  3. Clean mating surfaces of throttle body and intake manifold.
  4.  
  5. Install throttle body to intake manifold by positioning throttle body to manifold alignment pins.
  6.  
  7. Install 4 mounting bolts.
  8.  
  9. Install electrical connector.
  10.  
  11. Install air plenum.
    NOTE
    A Scan Tool may be used to learn electrical parameters. Go to the Miscellaneous menu, and then select ETC Learn.


    NOTE
    If the previous step is not performed, a Diagnostic Trouble Code (DTC) will be set. If necessary, use a scan tool to erase any Diagnostic Trouble Codes (DTCs) from ECM.

  12.  

 
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