| Symptom | Problem | Solution |
Suspension system gives a rough ride. | Tire inflation incorrectly set. | Check tire inflation (see Checking Tire Pressure in the Chassis section). |
| | Pressure in air springs not correctly set. | Correctly set pressure in air springs (see Adjusting Front And Rear Suspension Assemblies in the Chassis section.) |
| | Proper greasing intervals have not been followed or wrong type of lubrication has been used. | Follow correct lubrication intervals and lubrication procedures (see Lubrication And Maintenance section). |
| | Suspension rod bushings worn. | Replace bushings. |
| | Suspension rod hardware loose. | Tighten hardware. |