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Engine Controls - Remove/install/overhaul: Diagnosis GMC Rally G2500

Cleaning & Inspection

  1. Remove TPS, IAC, throttle body cover, fuel meter assembly and pressure regulator assembly, fuel injector, fuel filter, rubber parts and diaphragms. Clean all remaining (metal) parts in a cold immersion-type cleaner such as Carbon X (X-55). Blow dry with compressed air.
  2. Inspect mating surfaces for damage that may prevent gasket sealing. Repair or replace faulty components.