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Home >> Chevrolet >> 1991 >> Chevy Van G20, 5.0 H, 4L60/MD8 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> A-7, Basic Fuel System Checks (Gasoline) >> Fuel System Pressure Relief >> Model 220 TBI Unit (Except 2.5L)
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Model 220 TBI Unit (Except 2.5L)

WARNING: Fuel pressure is relieved and drops to zero when ignition is turned off. To minimize risk of fire and personal injury, cover area to be disconnected with a shop rag.