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Strategy Based Diagnostics GMC Sierra 1500 HD

Engine Mechanical - 4.3L: Diagnosis ~102 words

Strategy Based Diagnostics

  1. Perform the «DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS»(ref-158208-S20709970632003091700000) 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»(ref-188990-S08313085232005091300000) «Engine Component Description»(ref-188990-S25429693092005091300000) «Lubrication Description»(ref-188990-S28777281342005091300000) , and «New Product Information»(ref-188990-S07345244632005091300000) and to «Drive Belt System Description»(ref-188990-S27764201712005091300000) . 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.