Neutralizing Exhaust System

WARNING:
- EXHAUST GASES CONTAIN CARBON MONOXIDE, WHICH IS HARMFUL TO HEALTH AND POTENTIALLY LETHAL. EXHAUST SYSTEM LEAKS MUST BE REPAIRED IMMEDIATELY. NEVER OPERATE THE ENGINE IN AN ENCLOSED AREA.
- EXHAUST SYSTEM COMPONENTS ARE HOT.

CAUTION: Make sure the system is warmed upto normal operating temperature, as thermal expansion can be the cause of a strain problem.

NOTE: Neutralize the exhaust system to relieve strain on mounts which may be sufficiently bound up to transmit vibration as if grounded.

1. Raise and support the vehicle.

WARNING: THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE SHUT OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. THIS CAN BE ACCOMPLISHED BY TURNING OFF THE AIR SUSPENSION SWITCH. FAILURE TO DO SO CAN RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS, WHICH CAN RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS.

2. Loosen all hanger attachments and reposition the hangers until they hang free and straight.
3. Loosen all flange joints.
4. Tighten all the hanger clamps and flanges (tighten the manifold flange joint last).
- Verify adequate clearance to prevent grounding at any point in the system.
- After neutralization, the rubber in the exhaust hangers should show some flexibility when movement is applied to the exhaust system.
5. Lower the vehicle.
6. Perform a road test.