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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 829 (Engine Mechanical - 4.3L) >> Diagnostic Information and Procedures >> Symptoms - Engine Mechanical >> Strategy Based Diagnostics

Strategy Based Diagnostics

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS in Engine Performance 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  , LUBRICATION DESCRIPTION  , and NEW PRODUCT INFORMATION  in Engine Unit Repair Manual and to DRIVE BELT SYSTEM DESCRIPTION  .

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 problem. The diagnostic flow is the place to start when repairs are necessary. For a detailed explanation, refer to STRATEGY BASED DIAGNOSIS in General Information.