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Home >> Chevrolet >> 1990 >> Step Van 4.3 Z, Automatic, 475/M40 >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (Diesel) >> Injector Nozzles >> Removal
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Injector Nozzles: Removal

Disconnect negative battery cables. Disconnect fuel line clip. Remove fuel return line. Remove fuel injection line. Cap all openings. Using Injector Socket (J-29873), remove injector nozzles(s). Place socket on 1 3/16" (30 mm) hex flats of injector body to prevent damaging injector nozzle.