Mike's Workshop Manuals
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GMC
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1993
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C3500 HD 6.5 F, Standard
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Repair and Diagnosis
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Engine Performance
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Remove, Overhaul & Install
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Engine Controls - Remove/Install/Overhaul
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Fuel System (Gasoline)
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Fuel System Pressure Relief (PFI)
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Notes
Fuel System Pressure Relief (PFI): Notes
Fuel system is under pressure. Fuel pressure may be relieved by 2 different methods.