Corvette 1997-2005

Throttle Body

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Removal & Installation



  1. Raise and support the vehicle.
  2.  
  3. Partially drain the cooling system in order to allow the hoses at the throttle body to be removed.
  4.  
  5. Lower the vehicle.
  6.  
  7. Disconnect the intake air temperature sensor electrical connector.
  8.  
  9. Remove the air intake duct.
  10.  
  11. Disconnect the air control valve electrical connector.
  12.  
  13. Disconnect the Throttle Position sensor (TP) sensor electrical connector.
  14.  
  15. Disconnect the crankcase ventilation hose from the throttle body.
  16.  
  17. Disconnect the coolant hoses from the throttle body.
  18.  
  19. Remove the throttle body and the gasket.
  20.  
  21. Discard the throttle body gasket.
  22.  
  23. Inspect the crankcase ventilation hose and the tube. Replace any damaged components.
  24.  

To install:

  1. Install a new throttle body gasket.
  2.  
  3. Connect the coolant hoses to the throttle body.
  4.  
  5. Install the throttle body assembly.
  6.  
  7. Install the throttle body attaching bolts and tighten to 106 inch lbs. (12 Nm).
  8.  
  9. Connect the TP sensor electrical connector.
  10.  
  11. Connect the crankcase ventilation hose to the throttle body.
  12.  
  13. Connect the air control valve electrical connector.
  14.  
  15. Install the air intake duct.
  16.  
  17. Connect the intake air temperature sensor electrical connector.
  18.  
  19. Refill the cooling system.
  20.  
  21. Start the engine.
  22.  
  23. Check for coolant leaks.
  24.  

  1. Remove the air cleaner assembly.
  2.  
  3. Disconnect the air control valve electrical connector.
  4.  
  5. Remove the 4 throttle body bolts.
  6.  
  7. Remove the throttle body and the gasket.
  8.  
  9. Discard the throttle body gasket.
  10.  

To install:

  1. Install a new throttle body gasket.
  2.  
  3. Install the throttle body assembly.
  4.  
  5. Install the 4 throttle body bolts and tighten to 89 inch lbs. (10 Nm).
  6.  
  7. Connect the air control valve electrical connector.
  8.  
  9. Install the air cleaner assembly.
  10.  

 
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