Suspension General Diagnosis

Symptoms - Suspension General Diagnosis

Important: The following steps must be completed before using the symptom tables.



1. Determine whether the vehicle is equipped with an electrically assisted or active suspension system. Perform electrical diagnosis prior to beginning mechanical diagnosis. Refer to Diagnostic Starting Point - Air Suspension (Initial Inspection and Diagnostic Overview) in order to diagnose the system.
2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to the appropriate description and operation:

* General Description (Coil Spring) (Front Suspension)
* General Description (Rear Suspension General Description)
* General Description (Description and Operation)




Visual/Physical Inspection

* Inspect for aftermarket devices which could affect the operation of any of the Suspension subsystems.
* Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
* Inspect for proper tire size and inflation pressure. Refer to Vehicle Certification, Tire Placard, Anti-Theft, and Service Parts ID Label .



Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

* Ride Diagnosis (Ride Diagnosis)
* Vehicle Leads/Pulls (Vehicle Leads/Pulls)
* Body Leans or Sways in Corners (Body Leans or Sways in Corners)
* Suspension Bottoms (Suspension Bottoms)
* Trim Height Uneven or Low (Trim Height Uneven or Low)
* Poor Directional Stability (Poor Directional Stability)
* Ball Joint Inspection (Ball Joint Inspection)
* Trim Height Uneven or Low (Trim Height Uneven or Low)
* Noise Diagnosis - Front Suspension (Noise Diagnosis - Front Suspension)
* Noise Diagnosis - Rear Suspension (Noise Diagnosis - Rear Suspension)
* Suspension Strut and Shock Absorber Testing - On Vehicle (Suspension Strut and Shock Absorber Testing - On Vehicle)
* Wheel Bearings Diagnosis (Wheel Bearings Diagnosis)
* Radial Tire Lead/Pull Correction (Radial Tire Lead/Pull Correction)