2019 MITSUBISHI DELICA D:5

Typical onset: 80,000-120,000 mi

Symptoms: Rattling on cold start that persists for 5-10 seconds, Check engine light with cam/crank correlation codes (P0016, P0017), Loss of power under load, Metallic ticking that worsens with RPM

Fix: This is the big one. The 4N14's timing chain stretches and hydraulic lifters collapse, often causing catastrophic valve-to-piston contact if the chain skips. Proper fix requires timing chain kit, all lifters, chain guides, tensioner, and often camshaft replacement if lobes are scored. Budget 18-24 hours labor for a competent tech who's done these before. If valves kissed pistons, add cylinder head R&R and resurfacing, possibly a full short block if piston damage occurred.

Estimated cost: $4,500-8,500

Typical onset: 60,000-100,000 mi

Symptoms: Clunk when shifting from Park to Drive or Reverse, Excessive vibration at idle in gear, Visible transmission sag on inspection, Shifter feels notchy or resists engagement

Fix: The rear transmission mount is a known weak point, especially on 4WD models. The rubber separates from the metal housing or tears through. Replacement is straightforward but requires supporting the transmission. Plan 2-3 hours labor for both upper and lower mounts if doing them together, which is recommended.

Estimated cost: $450-750

Symptoms: ATF dripping near front crossmember or radiator, Low transmission fluid on dipstick with no obvious external leak, Transmission slipping or delayed engagement after fluid loss, Pink fluid stains under vehicle after parking

Fix: The hard lines from the transmission to the cooler corrode at fittings or crack from vibration. Often discovered during routine service. Replacement involves new lines or rubber hose upgrades. If cooler itself is leaking, budget for radiator R&R. Line replacement alone is 2-3 hours; add cooler and you're at 4-5 hours.

Estimated cost: $600-1,200

Typical onset: 100,000-140,000 mi

Symptoms: Vibration at idle that worsens around 1,500-2,000 RPM, Visible wobble on crankshaft pulley during operation, Serpentine belt tracking off-center or wearing unevenly, Squealing from accessories under load

Fix: The rubber isolator in the harmonic balancer separates, causing the outer ring to wobble. This kills alternators, AC compressors, and can damage the crankshaft nose if ignored. Replacement requires removing the serpentine belt and supporting the engine to access the crank bolt. 3-4 hours labor, and use a quality aftermarket or OE unit—cheap ones fail in 20k miles.

Estimated cost: $550-900

Symptoms: Hard starting when cold, Loss of power on highway acceleration, Rough idle and misfires under load, Limp mode activation with fuel pressure codes

Fix: JDM diesels often see contaminated fuel from smaller rural stations or when imported vehicles sit before sale. The 4N14 has a spin-on filter that should be changed every 15k-20k miles, not the factory 30k interval. Clogged filters starve the high-pressure pump and injectors. Replacement is 0.5-1 hour, but if you've been running on a clogged filter for months, expect to also do injector cleaning or replacement of the fuel pressure sensor.

Estimated cost: $150-350

Typical onset: 60,000-100,000 mi

Symptoms: White smoke from exhaust (coolant burning), Overheating with no obvious coolant leak, Bubbles in coolant reservoir while running, Loss of coolant with no external leaks, Rough running with misfire codes

Fix: The 4N14 runs hot, and if coolant gets low or the thermostat sticks, the aluminum head warps. Once warped, you're looking at head removal, resurfacing or replacement, and new head gasket/bolts. Often coincides with timing chain issues since the head's off anyway. Plan 14-18 hours labor for head R&R, resurface, and reassembly with new timing components.

Estimated cost: $3,500-6,000