
Catalytic Converter (Left Side) Explanation

Fig 1

Fig 2

Fig 3
CATALYTIC CONVERTER REMOVAL (LEFT SIDE)
1. Disconnect the negative battery cable.
2. Slightly raise the vehicle.
3. Remove the driver’s side front wheel.
4. Remove the driver’s side inner wheel splash shield.
NOTE: The catalytic converter flange is secured to the cylinder head. A steel sleeve holds the lower section of the converter flange to the head while two bolts fasten the flange to the cylinder head. The steel sleeve does not need to be removed for converter removal.
5. Disconnect the upper (2) and lower O2 sensors wiring connectors.
6. Saturate the bolts (1) and nuts with heat valve lubricant. Allow 5 minutes for penetration.
7. Remove the upper catalytic converter flange bolts (1) from the cylinder head.
8. Raise the vehicle.
9. If equipped, remove the engine skid plate.
10. Remove the bolts (2) that secure the front drive shaft to the front differential flange (1).
11. Remove the drive shaft from the flange and position aside. 12. Saturate the bolts (1) and nuts with heat valve lubricant. Allow 5 minutes for penetration.
13. Remove the lower catalytic converter flange bolts (1) from the y-pipe (3).
14. Using care. Lift the catalytic converter upwards to remove from the steel sleeve and out from the bottom of the vehicle.
15. Remove the heatshield from the converter.
16. Remove the O2 sensors.
CATALYTIC CONVERTER INSTALLATION (LEFT SIDE)
NOTE: The catalytic converter flange is secured to the cylinder head. A steel sleeve holds the lower section of the converter flange to the head while two bolts fasten the flange to the cylinder head. The steel sleeve does not need to be removed for converter removal.
1. Install the O2 sensors.
2. Install the heatshield.
3. Using care, position the catalytic converter assembly (Fig 3) #3 into the steel sleeve and onto the cylinder head through the bottom of the vehicle.
4. Loosely install the bolts (Fig 3) #1 from the Y-pipe #2 to the catalytic converter #3.
5. Position the exhaust pipe for proper clearance with the frame and underbody parts. A minimum clearance of 25.4 mm (1.0 in.) is required. Tighten the bolts (Fig 3) #1 at to 23 N.m (17 ft. lbs.).
6. Slightly lower the vehicle to gain access to the catalytic converter flange to cylinder head.
7. Tighten the bolts (Fig 1) #1 at exhaust manifold to 23 N.m (17 ft. lbs.).
8. Connect the O2 sensors electrical connectors.
9. Install the front drivers side splash shield.
10. Install the driver’s side front wheel.
11. Raise vehicle
12. Tighten the catalytic converter assembly to Y-pipe flange bolts to 27 N.m (20 ft. lbs.).
13. Install the front driveshaft onto the front differential flange (Fig 2) #1. Tighten the bolts #2 to 110 N.m(81 ft. lbs.).
14. Lower the vehicle.
15. Connect the negative battery cable
16. Start the vehicle and inspect for exhaust leaks. Repair exhaust leaks as necessary.