Exhaust System Neutralizing
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
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.
WARNING:
Exhaust system components are hot.
NOTE:
Neutralize the exhaust system to relieve strain on mounts which may be sufficiently bound up to transmit vibration as if grounded.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING AND LIFTING .
- Loosen all hanger attachments and reposition the hangers until they hang free and straight.
- Loosen all flange joints.
- Tighten all the hanger clamps and flanges (tighten the manifold flange joint last). For additional information, refer to EXHAUST SYSTEM
.
- 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.
- Lower the vehicle.
- Carry out a road test.
CAUTION:
Make sure the system is warmed up to normal operating temperature, as thermal expansion can be the cause of a strain problem.