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Home >> Chevrolet >> 1986 >> Astro Van Passenger, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - TBI >> Testing >> Fuel System Pressure Relief

Fuel System Pressure Relief

  1. On 2.8L and 4.3L engine, fuel pressure is relieved and drops to zero when ignition is turned off. On 2.5L engine, remove "FUEL PUMP" fuse from fuse block.
  2. Crank engine. Engine will start and run until fuel supply remaining in fuel lines is used. Engage starter for about 3 seconds to remove any remaining fuel. With ignition off, replace fuse.
WARNING: To minimize the risk of fire and personal injury when relieving pressure in fuel system, cover area to be disconnected with a shop rag. After use, place rag in approved container.
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