GM Service Manual Online
For 1990-2009 cars only

Intake Manifold Disassemble C/K/C3500HD/Medium Duty


    Object Number: 470760  Size: SH
  1. Remove the throttle body nuts and throttle body.
  2. Remove and discard the throttle body gasket.

  3. Object Number: 471023  Size: SH
  4. Remove the MAP sensor bolt and MAP sensor.
  5. Inspect the MAP sensor seal for damage.

  6. Object Number: 471008  Size: SH
  7. Remove the EGR valve nuts, EGR valve and EGR valve gasket.
  8. Discard the EGR valve gasket.

  9. Object Number: 471009  Size: SH
  10. Remove the EGR adapter nuts, EGR adapter and EGR adapter gasket.
  11. Discard the EGR adapter gasket.

  12. Object Number: 471013  Size: SH
  13. Remove the purge solenoid vacuum hose.

  14. Object Number: 471015  Size: SH
  15. Remove the purge solenoid bolt and the purge solenoid.
  16. Inspect the purge solenoid seal for damage. Replace the seal as needed.

Intake Manifold Disassemble G


    Object Number: 470760  Size: SH
  1. Remove the throttle body nuts and throttle body.
  2. Remove and discard the throttle body gasket.

  3. Object Number: 471023  Size: SH
  4. Remove the MAP sensor bolt and MAP sensor.
  5. Inspect the MAP sensor seal for damage.

  6. Object Number: 677740  Size: SH
  7. Remove the EGR valve nuts, EGR valve and EGR valve gasket.
  8. Discard the EGR valve gasket.

  9. Object Number: 471013  Size: SH
  10. Remove the purge solenoid vacuum hose.

  11. Object Number: 471015  Size: SH
  12. Remove the purge solenoid bolt and the purge solenoid.
  13. Inspect the purge solenoid seal for damage. Replace the seal as needed.