Home Auto Repair 2005 Cadillac CTS Intake Air Plenum Service and Repair

2005 Cadillac CTS Intake Air Plenum Service and Repair


Download Removal Procedure 1. Remove the intake plenum air inlet hose clamps and hoses from the throttle body. 2. Disconnect the fuel pressure regulator atmospheric vent tube from the bottom of the throttle body. 3. Remove the bolts securing the throttle body to the intake plenum. 4. Remove the throttle body from the intake plenum and crankcase vent adapter, allowing it to be supported by the throttle body inlet heater hose. 5. Remove the throttle body O-ring seals. 6. Remove the 3 bolts securing the crankcase vent adapter to the intake plenum. 7. Lift the crankcase vent adapter from the intake plenum, and position aside. 8. Disconnect the vacuum brake booster hose retainer (1) from the rear of the intake plenum RHD only. 9. Disconnect the crankcase ventilation dirty air hose retainer (2) from the fuel pipe. 10. Remove the remote power steering fluid reservoir mounting bolts (1, 3) ONLY, and position aside. 11. Disconnect the electrical connector (1) and vacuum hose (2) from the switchover valve at the rear of the plenum. 12. Remove the bolt (1) securing the throttle body heater inlet hose/pipe to the intake plenum (2). 13. Disconnect the vacuum brake booster hose (3) from the vacuum source. 14. Remove the 2 bolts securing the engine control module (ECM) bracket to the intake plenum. 15. Remove the intake plenum bolt caps. 16. Remove the intake plenum bolts. 17. Lift the intake plenum from the intake manifold.