Fire Suppressor - Without External Fire Suppressor Actuator

Fire Suppressor - Without External Fire Suppressor Actuator

WARNING: Always wear eye protection when servicing a vehicle. Failure to follow this instruction may result in serious personal injury.











Removal and Installation

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. WARNING: To reduce the risk of accidental deployment, do not use any memory saver devices when depowering the fire suppression system. Failure to follow this instruction may result in serious personal injury.

Disconnect the battery. For additional information, refer to Battery, Mounting and Cables Battery Disconnect.

3. Remove the rear suspension lateral arms. For additional information, refer to Rear Suspension Rear Suspension.

4. Remove the rear coil springs. For additional information, refer to Rear Suspension Rear Suspension.

5. Remove the 2 nuts and the catalytic converter-to-muffler clamp. For additional information, refer to Exhaust System [1][2]Diagrams.
- To install, tighten to 45 Nm (33 lb-ft).

6. NOTE: Check the insulator for wear or damage. Install a new insulator as necessary.

Disconnect the muffler insulator.





7. Remove the tailpipe and muffler assembly.

- NOTE: Check the insulator for wear or damage. Install a new insulator as necessary.

Disconnect the tailpipe insulator.





8. NOTICE: Secure the fire suppressor to the transmission jack with a suitable strap.

Support the fire suppressor with a suitable transmission jack.

9. Remove and discard the 2 fire suppressor bolts.
- To install, tighten to 30 Nm (22 lb-ft).

10. Remove and discard the 2 fire suppressor retainer nuts.
- To install, tighten to 30 Nm (22 lb-ft).

11. Remove and discard the fire suppressor retainer.
- Push the tabs to release the retainer from the No. 4 crossmember.

12. NOTICE: The fire suppressor electrical connector is located above the No. 4 crossmember. Carefully lower the transmission jack to avoid stressing the fire suppressor wiring harness.

Lower the transmission jack to gain access to the fire suppressor electrical connector.

13. NOTE: When connecting the fire suppressor electrical connector, push in the connector until an audible click is heard, then try to disconnect the connector without pressing the locking tab to make sure the connector is fully seated.

Disconnect the fire suppressor electrical connector.

- Push the pin-type retainer to release the fire suppressor connector locator.

14. Remove the fire suppressor.

15. Remove and discard the two No. 4 crossmember J-nuts.

16. WARNING: If the vehicle is equipped with a fire suppression system, disconnect the battery before anyone gets under the vehicle or near the rear axle area. You could unintentionally deploy the fire suppression system. Failure to follow these instructions may result in serious personal injury.

To install, reverse the removal procedure.