OEM 2001 Cadillac Seville Exhaust Manifold

2001 Cadillac Seville Exhaust Manifold Parts Questions & Experts Answers

• Q: How to replace the right exhaust manifold on 2001 Cadillac Seville?

  A: Prior to starting the right Exhaust Manifold replacement you must steer the vehicle into straight position and lock the Steering Column to avoid harm to the coil assembly. Secure the Steering Column with Steering Column lock pin (J 42640). First raise and support your vehicle and then unfasten the two nuts which hold the Exhaust Manifold pipe to the secondary air tube. Disconnect the rear Exhaust Manifold pipe along with the secondary air tube. The removal of the secondary air tube and its gasket must be followed by discarding them since they will not be used again. The post heated Oxygen Sensor wiring harness retainer must be detached from the power steering gear heat shield while removing the two bolts securing the heat shield itself. In the third step the heat shield from the power steering gear gets removed before the rearward nut which keeps the vehicle speed sensor heat shield in place so the forward nut can be loosened to remove the heat shield from the transaxle. The technician begins by removing the lower Control Arm real-time dampening sensor links and following by disconnecting the intermediate shaft from the steering gear using the pinch bolt. Unfasten both nuts that secure the right Engine Mount bracket to the right Engine Mount and the left transaxle mount bracket to the left transaxle mount. Lower a screw jack to 4 cm (1.5 inches) after securing the engine frame rear end with the tall screw jack. Then remove the engine frame-to-body bolts positioned toward the back. Begin the procedure by removing the heated Oxygen Sensor followed by the right Exhaust Manifold retaining bolts. Remove both components together with the gasket which needs discarding. Install a new Exhaust Manifold Gasket to the Cylinder Head studs before setting the right Exhaust Manifold into position at the right Cylinder Head. The right Exhaust Manifold nuts need installation followed by 25 nm (18 ft. Lbs.) of tightening then installation of the heated Oxygen Sensor before mounting the engine cradle. After tightening four rearward engine frame-to-body bolts to 191 nm (1141 ft. Lbs.) you can remove the screw jack to install the left transaxle mount nut that attaches to the left transaxle mount bracket while tightening it to 80 nm (59 ft. Lbs.). Secure the right Engine Mount bracket using a nut which requires 80 nm (59 ft. Lbs.) torque. Install the pinch bolt only when the intermediate shaft is correctly seated before securing it to the steering gear while tightening the bolt to 45 nm (33 ft. Lbs.). Use the real-time dampening sensor links to attach them to lower control arms and place the vehicle speed sensor heat shield on transaxle studs while installing retaining nuts (2,3) with a torque of 50 nm (37 ft. Lbs.). Install the power steering heat shield by positioning it near the gear then fasten the two hardware using 9 nm (79 inch lbs.) torque. The post heated Oxygen Sensor wiring harness retainer should connect to the heat shield while installing a new gasket to the secondary air tube followed by attaching two nuts on the Exhaust Manifold before tightening them to 12 nm (106 inch lbs.). The last steps include lowering the vehicle and removing the pin (J 42640) while installing the sensor pigtail to its heated Oxygen Sensor.