1984 GMC Value Van P3500, 6.2 J, StandardFACTORY OEM SERVICE PROCEDURE

Removal (Pickup)

  1. Disconnect negative battery cables. Remove fan, shroud, air cleaner and intake manifold. Install screens in cylinder heads. Remove fuel injection lines as previously described.
  2. Disconnect throttle cable, return springs and detent cable (if equipped). Disconnect wires, fuel return line, fuel supply line and fuel injection lines at pump. Cap all fuel lines.
  3. Remove oil filler tube and PCV vent hose assembly. Remove A/C hose retainer bracket, if equipped. Remove grommet. Scribe or paint an alignment mark on front cover and injection pump.
  4. Rotate engine to remove injection pump retaining bolts that are accessible through oil filler neck hole. Remove injection pump-to-front cover bolts. Remove injection pump and gasket.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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