Symptoms
4WD that won't engage or won't release. US trucks have automatically locking front hubs as standard. Mitsubishi says the first generation's part-time system binds ('tight-corner braking') if you use 4WD on dry pavement.
The fix, step by step
- On loose ground, shift into 4H and drive forward until the hubs engage, then try 4L.
- Shift back to 2H and reverse a few metres to release the auto hubs; Mitsubishi describes the old procedure of stopping and backing about a metre.
- If one side won't engage, pull the hub, clean it, check the internals, and regrease it with the correct hub grease.
- Never run 4WD on dry pavement in this truck.
Tools & part numbers
- Snap-ring pliers
- hub socket
- wheel-bearing grease
- factory manual.
Where to buy the parts
Drivetrain parts (hubs, bearings, seals), 1989 Montero 2.6RockAuto ↗Amazon ↗
Drivetrain parts, 1989 Montero 3.0 V6RockAuto ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Mitsubishi Pajero / Montero (First Generation) parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.