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Gearbox removal & installation: Mitsubishi Spacerunner 1.8 GDi 1999 (4G93, 4G64)

Step-by-step gearbox removal & installation for the Mitsubishi Spacerunner 1.8 GDi 1999 (4G93/4G64): 22 steps.

Taking the engine out of the Mitsubishi Space Runner 1.8 GDI (4G93, 1999 onwards) is a drop-from-below job, and the gearbox has to come out before the engine does. The preparation is about isolating the engine without opening sealed systems: pull the fuel pump relay, note the audio security code before disconnecting the battery, then free fuel feed and return lines, vacuum and brake servo hoses, heater hoses, wiring and connectors. The ancillary belts come off, and both the power steering pump and the air-conditioning compressor are unbolted and tied aside with their lines intact. With the engine supports disconnected the unit is lowered out underneath. Patience with labelling hoses and connectors on the way out saves far more time on the way back in than it takes on the way out.

22 steps 2 engine codes

🧭 Before you start

Remove the fuel pump relay, record the audio code and disconnect the battery. Remove the gearbox first, then disconnect fuel lines, vacuum and servo hoses, heater hoses, wiring and connectors. Take off the ancillary belts, set the power steering pump and air-conditioning compressor aside without opening them, disconnect the engine supports and lower the engine out from underneath.

Fits: platform codes 1.8, GDI

Don't miss

  • The gearbox must be removed before the engine.
  • Check the audio system security code before the battery cable is disconnected.
  • Remove the fuel pump relay first to depressurise the fuel feed.
  • Leave power steering and air-conditioning lines connected; move the units aside.
  • Label vacuum hoses and connectors as they come off (general practice).

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

4G934G64

📐 31 workshop diagrams for 4G93

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 1
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 2
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 3
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 4
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 5
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 6
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 7
Spacerunner 1.8 GDi 4G93 1999-> — 4G93 · diagram 8
+ 23 more diagrams
🔒 31 workshop diagrams for this job Ask about your Mitsubishi 4G93 — free or sign up free to see the drawings

📋 Procedure

  1. Remove the fuel pump relay
  2. Before disconnecting the battery cable, check the audio system security code
  3. The gearbox must be removed before the engine
  4. Remove the gearbox
  5. Remove the engine/gearbox from under the vehicle
4G93? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Disconnect the fuel feed and return lines
  2. Disconnect the vacuum hose
  3. Disconnect the brake servo vacuum hose
  4. Disconnect the wiring
  5. Disconnect the heater hoses
  6. Disconnect the connectors
  7. Remove the ancillary drive belt(s)
  8. Remove the power steering pump but do not disconnect the lines
  9. Remove the air-conditioning compressor but do not disconnect
  10. Disconnect the power steering hose
  11. Disconnect the engine supports
  12. Lower the engine
Workshop diagrams

Ask TorqFix about your Mitsubishi 4G93 — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.

Ask about your Mitsubishi 4G93 — free → or sign up free to see the drawings

Other MITSUBISHI procedures

Who makes these pages, and how

TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

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Workshop data on this page last updated 20 Sep 2026.