Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system functions. Refer to TRANSFER CASE DISASSEMBLED VIEW , TRANSFER CASE DESCRIPTION AND OPERATION and REAR DRIVE AXLE DESCRIPTION AND OPERATION . 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 .
Visual/Physical Inspection
- Inspect for aftermarket devices, which could affect the operation of the vehicle. Refer to «CHECKING AFTERMARKET ACCESSORIES»(ref-268410-S24071910952007102300000) .
- Inspect the easily accessible or visible system components for obvious damage or conditions, which could cause the symptom.
- Inspect for the correct lubricant levels and the proper viscosities.
- 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 ensure you are not trying to correct a normal condition.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom
- «DIAGNOSTIC STARTING POINT - TRANSFER CASE»(ref-268442-S14636009852007102300000)
- «DIAGNOSTIC STARTING POINT - REAR DRIVE AXLE»(ref-268427-S15166459152007102300000)
- «NOISY IN DRIVE»(ref-268442-S17023011772007102300000)
- «NOISY WHEN COASTING»(ref-268442-S42594464872007102300000)
- «INTERMITTENT NOISE»(ref-268442-S20809217922007102300000)
- «CONSTANT NOISE»(ref-268442-S36412270732007102300000)
- «TRANSFER CASE LEAK DIAGNOSIS»(ref-268442-S25861641042007102300000)