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Mitsubishi — Bleed the fuel system

Maintenance

From a Mitsubishi owner's manual — check it applies to your exact model before use.

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Before you start

  • Wipe spilled fuel thoroughly; fire hazard
  • Lock priming pump cap securely after bleeding

Procedure

  1. Loosen air vent plug on fuel filter about 1.5 turns.
  2. Loosen priming pump cap counterclockwise and move up and down.
  3. When no air bubbles, tighten air vent plug to specified torque.
  4. Repeat for right fuel filter and filters on other side.
  5. Loosen air vent cock on fuel injection pump about 1.5 turns.
  6. Move priming pump cap up and down until no air bubbles.
  7. Press down priming pump cap and turn clockwise.
  8. Tighten air vent cock on fuel injection pump.

Specs & values

  • Air vent plug tightening torque 7.8 to 9.8 N-m (0.8 to 1.0 kgf-m)

Source: Mitsubishi owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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