Symptoms - Rear Differential Carrier for Saturn RELAY Ext. 2005
Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system
functions. Refer to
Differential Carrier Assembly Disassembled Views
,
Differential Carrier Assembly Description
,
Locking Differential Description and Operation
in Drive Axle - Locking/Limited Slip, and
Transfer Case Description and Operation
in
Transfer Case - Steyr. All diagnosis on a vehicle should follow a logical process.
Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic
flow may always be used in order to resolve a system condition. The diagnostic flow
is the place to start when repairs are necessary. For a detailed explanation, refer
to
Strategy Based Diagnosis
in General Information.
Visual/Physical Inspection
| • | Inspect the easily accessible or visible system components for obvious
damage or conditions, which could cause the symptom. |
| • | Check for the correct lubricant level and the proper viscosity. |
| • | Verify the exact operating conditions under which the concern exists.
Note factors such as vehicle speed, road conditions, ambient temperature, and other
specifics. |
| • | Compare the driving characteristics or sounds, if applicable, to a known
good vehicle and make sure you are not trying to correct a normal condition. |
| • | Factors that may contribute to an inoperative rear differential include: |
| - | Differential inoperative due to antilock brake system (ABS) function |
| - | Inoperative powertrain control module (PCM) and/or wiring system |
| - | A mini-spare or different size tire installed |
| - | A fluid over-temperature condition |
| - | An inoperative or "stuck" clutch pump check valve |
| - | A defective rear differential assembly |
| - | An inoperative transfer case assembly |
Intermittent
Test the vehicle under the same conditions that the customer reported in order
to verify the system is operating properly.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to
diagnose the symptom:
