Mitsubishi Pick-ups and Montero 1983-1995 Repair Guide




  1. Turn the ignition switch OFF .
  3. Disconnect the negative battery terminal, then disconnect the positive battery terminal. Be careful to keep the wrench from connecting the two battery terminals when loosening the nuts that tighten the battery connectors. If the connectors are difficult to pull off, either use a special puller designed for this purpose or carefully pry the halves of the connectors apart with a prytool. Be careful; the connectors are very soft metal and are easily damaged.
  5. Loosen and remove the retaining nuts, remove the battery mounting bracket, and remove the battery.

Battery fluid contains sulfuric acid, capable of causing skin and eye burns. Keep the battery upright at all times. Wear eye protection when working with batteries. Wear heavy rubber gloves if any leakage is evident.

  1. Clean the surface of the battery of grease and dust and inspect it for cracks while it is out of the vehicle. If the case is cracked, the battery must be replaced. Clean the battery box or tray with a solution of baking soda and water to remove corrosion. Clean the top of the battery with the same solution, rinse it with clear water and dry it with clean rags. Make sure that none of the baking soda/water solution leaks into the battery.

If the battery is to be charged while out of the vehicle, place it on wooden blocks or a workbench. Do not charge the battery while it is sitting on a concrete floor. The concrete will absorb heat and prevent the battery from charging.

To install:
  1. Reposition the battery in the battery tray and install the mounting brackets and nuts. Make sure the battery is mounted tightly to prevent it from sliding around or vibration damage . Clean the battery terminal posts and cable clamps with a brush designed for this purpose.
  3. Connect the cables to the battery terminals. When connecting the cables, make sure that the positive cable is attached to the positive battery terminal (+) and the negative cable is fastened to the negative terminal (-). Tighten the connectors securely. Then coat both connectors with petroleum grease.