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Home >> GMC >> 1993 >> Forward Control 6.2 J, Automatic >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (Gasoline) >> Fuel Rail & Injectors (PFI) >> Removal (3.8L)

Removal (3.8L)

  1. Relieve fuel pressure. See FUEL SYSTEM PRESSURE RELIEF (PFI) under FUEL SYSTEM (GASOLINE). Disconnect fuel supply and return lines from fuel rail by squeezing tabs and pulling them off. Remove vacuum line from fuel pressure regulator.
  2. Disconnect electrical harness connector from injectors. Remove fuel rail hold-down bolts. Remove fuel rail from intake manifold by using equal force on both sides of fuel rail. Plug injector holes on intake manifold during service. To remove injector from fuel rail assembly, remove injector retaining clips.
CAUTION: DO NOT  use compressed air to internally flush, clean or dry fuel rail. DO NOT  immerse rail in solvent.
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