LEMON Manuals: Even more car manuals for everyone
Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Right Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.
CAUTION: Always wear protective goggles and gloves when removing exhaust parts as falling rust and sharp edges from worn exhaust components could result in serious personal injury.
Fig 1: Identifying Engine Harness Electrical Connectors
GM1665457Courtesy of GENERAL MOTORS CORP.
  1. Remove the connector position assurance (CPA) retainer (3).
  2. Disconnect the engine harness electrical connector (2) from the heated oxygen sensor (HO2S).
  3. Remove the HO2S clip (5) from the secondary air injection (AIR) valve hose bracket.
    NOTE: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the coil assembly in the steering column to become uncentered which will cause damage to the coil assembly.
    4. Fig 2: Identifying J 42640
    GM333146Courtesy of GENERAL MOTORS CORP.
  4. Lock the steering column by installing the J 42640  into the underside of the steering column. See Special Tools .
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  6. Remove the rear exhaust manifold pipe. Refer to Exhaust Manifold Pipe Replacement - Rear .
  7. Remove the AIR check valve. Refer to Secondary Air Injection Check Valve Replacement .
    Fig 3: Locating Engine Harness Electrical Connectors
    GM1663209Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the engine harness clip (2) from the steering gear heat shield.
    9. Fig 4: Disconnecting/Connecting Engine Harness Clip At Steering Gear Heat Shield
    GM1665450Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the engine harness clip (3) from the steering gear heat shield.
    10. Fig 5: View Of Steering Gear Heat Shield & Bolts
    GM1670593Courtesy of GENERAL MOTORS CORP.
  10. Remove the steering gear heat shield bolts.
  11. Remove the steering gear heat shield.
    12. Fig 6: View Of Ball Stud
    GM575135Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the electronic suspension position sensor link ball studs from the lower control arms.
    Fig 7: Identifying Steering Gear & Related Attachments
    GM1665092Courtesy of GENERAL MOTORS CORP.
    CAUTION: Failure to disconnect the intermediate shaft from the rack and pinion stub shaft can result in damage to the steering gear and/or damage to the intermediate shaft. This damage may cause loss of steering control which could result in personal injury.
  13. Unsnap and remove the intermediate shaft seal.
  14. Remove the intermediate shaft pinch bolt.
  15. Separate the intermediate shaft from the steering gear.
    16. Fig 8: Proper Support of Engine Frame
    GM694208Courtesy of GENERAL MOTORS CORP.
  16. Support the rear of the frame with a tall screw type jack.
    17. Fig 9: Identifying Rearward Engine Frame-To-Body Bolts
    GM1665303Courtesy of GENERAL MOTORS CORP.
  17. Remove the 4 rearward engine frame-to-body bolts (1) (left side shown, right side similar).
  18. Lower the screw type jack approximately 4 cm (1.5 in) allowing the rear of the engine frame to lower.
    19. Fig 10: HO2S
    GM1670529Courtesy of GENERAL MOTORS CORP.
  19. Remove the HO2S.
    20. Fig 11: Exhaust Manifold Nuts & Gasket
    GM1670474Courtesy of GENERAL MOTORS CORP.
  20. Remove the exhaust manifold nuts.
  21. Remove the exhaust manifold (2).
  22. Remove and discard the exhaust manifold gasket (1).
scientia non olet · About LEMON Manuals