1994 MITSUBISHI PAJERO MINI

Typical onset: 70,000-120,000 mi

Symptoms: Loud ticking or clattering on cold start that persists after warm-up, Loss of power under load as valve lash opens up, Check engine light for cam/crank correlation in severe cases

Fix: Replace all hydraulic lifters (16 total) with OEM or quality aftermarket units; requires cylinder head removal on the 4A30T. Budget 8-10 hours labor including valve adjustment and gasket replacement. Often combined with camshaft inspection since head is already off.

Estimated cost: $1,200-2,000

Typical onset: 90,000-150,000 mi

Symptoms: Coolant loss with no visible external leaks, White smoke from exhaust, especially under boost, Rough idle and misfires on adjacent cylinders, Milky oil or bubbles in coolant reservoir

Fix: Head gasket replacement requires cylinder head removal, resurfacing (nearly always warped on these), and pressure testing. The 4A30T runs high boost for its size and thin-wall casting doesn't tolerate overheating. Plan 12-14 hours labor; always resurface the head and replace timing belt components while you're in there.

Estimated cost: $1,800-2,800

Typical onset: 80,000-130,000 mi

Symptoms: ATF puddles under front of vehicle, Transmission slipping or delayed engagement when fluid runs low, Burnt ATF smell if leak goes unnoticed

Fix: The rubber hoses connecting the transmission to the external oil cooler deteriorate and crack. Replace both feed and return lines; original-style hoses are NLA so fabricate with high-pressure transmission cooler hose. Flush cooler and replace ATF. 2-3 hours labor.

Estimated cost: $300-550

Typical onset: 100,000+ mi

Symptoms: Excessive vibration at idle that worsens with RPM, Visible wobble of crankshaft pulley, Squealing from accessory belts that can't be tensioned properly, Eventual accessory drive failure or timing belt damage

Fix: The bonded rubber in the harmonic balancer separates, allowing the outer ring to shift. Replacement requires removing accessory belts and crankshaft bolt (impact gun essential, 150+ ft-lbs torque). Do timing belt service simultaneously since access is 80% the same. 4-5 hours labor if replacing balancer alone, 6-8 if doing timing belt too.

Estimated cost: $600-1,000

Typical onset: 120,000-180,000 mi

Symptoms: Severe lifter noise that doesn't respond to lifter replacement, Loss of valve lift measured during inspection, Metal particles in oil during changes, Poor performance despite good compression numbers

Fix: The 4A30T camshaft lobes wear from marginal oiling under high-RPM turbo use, especially if oil change intervals were stretched. Requires head removal, cam replacement, new lifters, and often head resurfacing. This is a 10-12 hour job minimum. If caught early you can reshim existing lifters, but worn lobes need replacement.

Estimated cost: $2,000-3,200

Typical onset: 60,000-110,000 mi

Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive driveline vibration, Visible sag of transmission tail housing

Fix: The rear transmission mount rubber deteriorates and allows excessive movement. Straightforward replacement requiring transmission support and 1-2 hours labor. Inspect front engine mounts at the same time as they often fail simultaneously on these lightweight platforms.

Estimated cost: $200-350