Removal Procedure
Refer to WARNING: SERVICING EXHAUST SYSTEM .
Refer to SAFETY GLASSES WARNING .
Scheme 1
Scheme 1: Removal Procedure
Scheme 2
- Disconnect the heated oxygen sensor before and after the left catalytic converter.
- Remove the left catalytic converter nuts (1) to left cylinder head. Replace gasket (2) with a new one.
- Remove the nuts (1) to the rear muffler assembly.
- Remove the nuts (2) from the right catalytic converter.
- NOTE: It may be easier to remove catalytic converter by removing the left cylinder studs. Remove the exhaust bracket insulator (3) from the hanger and lower catalytic converter (5).
- Carefully lower the catalytic converter to the floor.
- Transfer oxygen sensors if replacing catalytic converter.
Scheme 3
Scheme 3: Installation Procedure
- Refer to «CAUTION: RETAINER»(ref-652229-S20487768742014082300000) WARNING: To prevent damage to the exhaust manifold flange or stud, make sure the flange is fully seated before tightening. NOTE: Replace the left catalytic to cylinder head nuts and gaskets with new ones. Install the left catalytic converter nuts to the left cylinder head. Tighten nuts (1) in a criss-cross pattern. Tighten First Pass 20 Nm (15 lb ft) Final pass 46 Nm (34 lb ft).
Scheme 4
- Attach left catalytic converter to insulator hanger bracket (3).
- Install the left catalytic converter nuts (1) to the rear muffler assembly. Tighten to 46 Nm (34 lb ft) .
- Install nuts (2) to the right catalytic converter. Tighten to 46 Nm (34 lb ft) .
- Connect the heated oxygen sensor.
- NOTE: Improperly installed and/or leaking exhaust manifold gaskets may affect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance. Inspect the exhaust system for leaks.
Scheme 5
Scheme 5: Catalytic Converter Replacement - Right Side (LF1)
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the left side catalytic converter. Refer to CATALYTIC CONVERTER REPLACEMENT - LEFT SIDE (LF1) Disconnect the heated oxygen sensors before and after the right catalytic converter. |
| 1 | Nut (Qty: 4) Refer to CAUTION: RETAINER . WARNING: To prevent damage to the exhaust manifold flange or stud, make sure the flange is fully seated before tightening. Procedure Remove the right exhaust manifold nuts (1). Remove the right exhaust manifold studs on the right cylinder head (if necessary). Replace the nuts (1) and gasket (2). Clean and inspect the studs on the engine cylinder head. Replace if necessary. Verify that the studs are fully seated. Stud collar should touch the surface of the engine cylinder head. Tighten nuts in a criss-cross pattern. Tighten First Pass 20 Nm (15 lb ft) Final pass 46 Nm (34 lb ft). |
| 2 | Gasket NOTE: Improperly installed and/or leaking exhaust manifold gaskets may affect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance. |
| 3 | Catalytic Converter |
| WARNING |
|---|
| To prevent damage to the exhaust manifold flange or stud, make sure the flange is fully seated before tightening. |
| NOTE |
|---|
| Improperly installed and/or leaking exhaust manifold gaskets may affect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance. |
Scheme 6
Scheme 6: Three-Way Catalytic Converter Replacement (Service)
| Callout | Component Name |
|---|
| Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: DAMAGE TO THREE-WAY CATALYTIC CONVERTER . Preliminary Procedures Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE . Cut the three-way catalytic converter 13.55 mm (0.5 inch) from the weld spot (a). |
| 1 | Service Clamp |
| 2 | Nut (Qty: 2) Refer to CAUTION: RETAINER Tighten 48 Nm (35 lb ft) |
| 3 | Three-Way Catalytic Converter |
| 4 | Exhaust Muffler |
Scheme 7
Scheme 7: Catalytic Converter Brace Replacement (LAU)
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the catalytic converter heat shield. Refer to CATALYTIC CONVERTER HEAT SHIELD REPLACEMENT (LAU) . Remove the catalytic converter. Refer to CATALYTIC CONVERTER REPLACEMENT (LAU) . |
| 1 | Catalytic Converter Brace Bolt (Qty: 2) Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER . Tighten 20 Nm (17 lb ft) |
| 2 | Catalytic Converter Brace Bolt (Qty: 2) Tighten 20 Nm (17 lb ft) |
| 3 | Catalytic Converter Brace |
Scheme 8
Scheme 8: Exhaust System Insulator, Hanger, Bracket Replacement (Bracket - LAU)
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the catalytic converter heat shield. Refer to CATALYTIC CONVERTER HEAT SHIELD REPLACEMENT (LAU) . Remove the catalytic converter. Refer to CATALYTIC CONVERTER REPLACEMENT (LAU) . |
| 1 | Catalytic Converter Bracket Nut Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER Tighten 43 Nm (32 lb ft) |
| 2 | Catalytic Converter Support Bolt Tighten 58 Nm (43 lb ft) |
| 3 | Catalytic Converter Bracket |
Scheme 9
Scheme 9: Exhaust Muffler Replacement (LAU)
| Callout | Component Name |
|---|
| Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: INSPECTION OF EXHAUST SYSTEM . Preliminary Procedures Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE . |
| 1 | Nut (Qty: 2) Refer to CAUTION: RETAINER Tighten 46 Nm (34 lb ft) |
| 2 | Exhaust Muffler Insulator NOTE: Use an appropriate tool to remove the muffler rods from the insulator, so as not to damage the insulator. Check for worn, torn, or damaged insulator, replace as necessary. Replace if necessary. |
| 3 | Exhaust Muffler NOTE: With the aide of an assistant, lower the muffler assembly. |
| NOTE |
|---|
| Use an appropriate tool to remove the muffler rods from the insulator, so as not to damage the insulator. Check for worn, torn, or damaged insulator, replace as necessary. Replace if necessary. |
| NOTE |
|---|
| With the aide of an assistant, lower the muffler assembly. |
Scheme 10
Scheme 10: Exhaust Muffler Replacement (LF1)
| Callout | Component Name |
|---|
| Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: INSPECTION OF EXHAUST SYSTEM . Preliminary Procedures Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE . |
| 1 | Nut (Qty: 2) Refer to CAUTION: RETAINER Tighten 46 Nm (34 lb ft) |
| 2 | Exhaust Muffler Insulator NOTE: Use an appropriate tool to remove the muffler rods from the insulator. Check for worn, torn, or damaged insulator, replace as necessary. Replace if necessary. |
| 3 | Exhaust Muffler NOTE: With the aide of an assistant, lower the muffler assembly. |
| NOTE |
|---|
| Use an appropriate tool to remove the muffler rods from the insulator. Check for worn, torn, or damaged insulator, replace as necessary. Replace if necessary. |
| NOTE |
|---|
| With the aide of an assistant, lower the muffler assembly. |
Scheme 11
Scheme 11: Exhaust Flexible Pipe Replacement (LAU)
| Callout | Component Name |
|---|
| Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: INSPECTION OF EXHAUST SYSTEM . Preliminary Procedures Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE . |
| 1 | Nut (Qty: 2) Refer to CAUTION: RETAINER . Tighten 46 Nm (34 lb ft) |
| 2 | Nut (Qty: 3) Tighten 18 Nm (13 lb ft) |
| 3 | Exhaust Muffler Insulators NOTE: Use an isolator tool to remove the flex pipe rods from the insulator. Check for worn, torn, or damaged insulator, replace as necessary. Replace if necessary. |
| 4 | Seal NOTE: Clean the gasket surfaces and replace any worn seals. |
| 5 | Exhaust Front Flex Pipe |
| NOTE |
|---|
| Use an isolator tool to remove the flex pipe rods from the insulator. Check for worn, torn, or damaged insulator, replace as necessary. Replace if necessary. |
| NOTE |
|---|
| Clean the gasket surfaces and replace any worn seals. |
Scheme 12
Scheme 12: Exhaust Flexible Pipe Replacement (LF1-Service)
| Callout | Component Name |
|---|
| Preliminary Procedures Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE . |
| 1 | Service Exhaust Clamp Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER Procedure Cut the exhaust flex pipe in the center of the straight pipe (a). |
| 2 | Nut (Qty: 2) Tighten 48 Nm (35 lb ft) |
| 3 | Exhaust Flex Pipe (Y-Pipe) |
| 4 | Exhaust Flex Pipe |
Scheme 13
Scheme 13: Catalytic Converter Heat Shield Replacement (LAU)
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the battery tray. Refer to BATTERY TRAY REPLACEMENT . Remove the radiator surge tank engine hose at the surge tank. Refer to RADIATOR SURGE TANK ENGINE HOSE REPLACEMENT (LAU) . Remove the radiator surge tank inlet hose at the surge tank. Refer to RADIATOR SURGE TANK INLET HOSE REPLACEMENT (LAU) or RADIATOR SURGE TANK INLET HOSE REPLACEMENT (LF1) . |
| 1 | Catalytic Converter Heat Shield Nut Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER . Tighten 10 Nm (7 lb ft) |
| 2 | Catalytic Converter Heat Shield Bolt (Qty: 3) Tighten 10 Nm (7 lb ft) |
| 3 | Catalytic Converter Heat Shield |
Scheme 14
Scheme 14: Transmission Heat Shield Replacement (LAU)
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the catalytic converter heat shield. Refer to CATALYTIC CONVERTER HEAT SHIELD REPLACEMENT (LAU) . |
| 1 | Transmission Heat Shield Nut Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER . Tighten 10 Nm (7 lb ft) |
| 2 | Transmission Heat Shield Bolt (Qty: 2) Tighten 10 Nm (7 lb ft) |
| 3 | Transmission Heat Shield |
Scheme 15
Scheme 15: Exhaust Manifold Lower Heat Shield Replacement (MH2, MH4, MXE)
| Callout | Component Name |
|---|
| Preliminary Procedures If equipped with AWD, remove the right catalytic converter. Refer to CATALYTIC CONVERTER REPLACEMENT - RIGHT SIDE (LF1) |
| 1 | Transmission Brace Bolt (MH4) Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER . Tighten 58 Nm (43 lb ft) |
| 2 | Transmission Brace Bolt (Qty: 2) Tighten 58 Nm (43 lb ft) |
| 3 | Transmission Brace (MH4) |
| 4 | Lower Heat Shield Bolt Tighten 9 N m (80 lb in) |
| 5 | Lower Heat Shield Bolt Tighten 58 Nm (43 lb ft) |
| 6 | Exhaust Manifold Lower Heat Shield (MH2 Shown) |
Scheme 16
Scheme 16: Exhaust Manifold Heat Shield Replacement - Right Side (LAU)
| Callout | Component Name |
|---|
| Preliminary Procedures Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE . Remove the catalytic converter. Refer to CATALYTIC CONVERTER REPLACEMENT (LAU) . |
| 1 | Exhaust Manifold Heat Shield Bolt (Qty: 5) Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER . Tighten 10 Nm (7 lb ft) |
| 2 | Exhaust Manifold Heat Shield |
Scheme 17
Scheme 17: Exhaust Manifold Heat Shield Replacement - Left Side (LAU)
| Callout | Component Name |
|---|
| Preliminary Procedures Remove the secondary air injection pump hose. Refer to SECONDARY AIR INJECTION PUMP HOSE REPLACEMENT . Remove the secondary air injection pump pipe. Refer to SECONDARY AIR INJECTION PUMP PIPE REPLACEMENT . Remove the oil level indicator tube. Refer to OIL LEVEL INDICATOR TUBE REPLACEMENT (LAU) or OIL LEVEL INDICATOR TUBE REPLACEMENT (LF1 OR LFW) . Remove the harness bracket bolt above the exhaust manifold heat shield and reposition the engine harness. |
| 1 | Exhaust Manifold Heat Shield Bolt (Qty: 4) Refer to WARNING: SERVICING EXHAUST SYSTEM . Refer to CAUTION: RETAINER . Tighten 10 Nm (7 lb ft) |
| 2 | Exhaust Manifold Heat Shield |
