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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Engine Mechanical - 4.0L (On-Vehicle)) >> Diagnostic Information and Procedures >> Symptoms - Engine Mechanical >> Strategy Based Diagnostics

Strategy Based Diagnostics

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform a DIAGNOSTIC SYSTEM CHECK -- ENGINE CONTROLS before using the symptom tables (if applicable).
  2. Review the system operations in order to familiarize yourself with the system functions. Refer to DISASSEMBLED VIEWS , ENGINE COMPONENT DESCRIPTION , Drive Belt System Description , LUBRICATION DESCRIPTION , and NEW PRODUCT INFORMATION .

All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairing all systems. The diagnostic flow man always be used in order to resolve a system problem. The diagnostic flow is the place to start when repairs are necessary. For a detailed explanation, refer to STRATEGY BASED DIAGNOSIS .