2019 DAIHATSU HIJET

Typical onset: 50,000-90,000 mi

Symptoms: Ticking or tapping noise from valve cover, especially cold start, Loss of power under load, Check engine light with misfire codes, Increased oil consumption

Fix: KF engines use mechanical lifters that wear rapidly with extended oil intervals or low-quality oil. All lifters typically need replacement as a set (12 pieces). Job requires cam removal and careful valve clearance adjustment. 6-8 hours labor for experienced techs, more for first-timers on this engine.

Estimated cost: $1,200-2,200

Typical onset: 80,000-130,000 mi

Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Overheating episodes, Milky oil on dipstick or cap, Rough idle and misfires

Fix: The thin head gasket in KF turbocharged engines fails between cylinders or into coolant passages. Head must be removed, resurfaced (often warped 0.003-0.008 inches), and pressure tested. Timing chain comes off so this is the time to replace chain, guides, and tensioner. Also address lifters if noisy. 10-14 hours total labor depending on head condition.

Estimated cost: $2,800-4,500

Typical onset: 100,000-150,000 mi

Symptoms: Rattling noise from front of engine on startup, Check engine light with timing advance/retard codes, Rough running and poor performance, Metallic scraping sound under acceleration

Fix: KF engines have a single-row timing chain prone to stretch, especially if oil changes exceed 5,000 mi intervals. Plastic guides crack and tensioner loses effectiveness. Requires front engine disassembly including harmonic balancer removal. Always replace chain, both guides, tensioner, and balance shaft chain if equipped. 8-10 hours labor.

Estimated cost: $1,800-3,200

Typical onset: 90,000-140,000 mi

Symptoms: Vibration at idle and low RPM, Serpentine belt repeatedly misaligning or shredding, Visible wobble of front pulley, Squealing from belt area

Fix: The bonded rubber layer separates or deteriorates, causing the outer ring to slip or wobble. Critical for timing chain survival because excess vibration accelerates chain stretch. Special puller required for removal. Replace whenever timing chain is done. 2-3 hours labor standalone, minimal added time during timing chain job.

Estimated cost: $400-700

Typical onset: 60,000-100,000 mi

Symptoms: Transmission fluid leaking near radiator area, Pink or red fluid pooling under front of vehicle, Transmission slipping or delayed engagement, Transmission overheating warning

Fix: Steel lines running to the small transmission cooler corrode at fittings and flex points, especially in salt-belt areas. Leaks often start small but accelerate. Lines are not serviceable separately on many Hijets—entire cooler assembly may need replacement. 2-4 hours labor including fluid refill and leak check.

Estimated cost: $500-1,000

Typical onset: 70,000-120,000 mi

Symptoms: Clunking when shifting from Park to Drive/Reverse, Excessive vibration through floor and shifter, Visible transmission sag or misalignment, Accelerated CV axle wear

Fix: Rubber mounts crack and separate, allowing transmission to drop or move excessively. On Hijet's compact layout, this also stresses axle joints. Mount is accessible from underneath but tight quarters. 1.5-2.5 hours labor. Always inspect engine mount simultaneously.

Estimated cost: $250-500

Symptoms: Hard starting especially when fuel tank below 1/4, Sputtering and loss of power under load, Stalling at idle after highway run, Check engine light with fuel pressure codes

Fix: Inline fuel filter on Hijet clogs more frequently than typical cars due to smaller tank and sediment accumulation. Filter is under vehicle near tank, protected by heat shield. Should be replaced every 30,000-40,000 mi preventively. 0.5-1 hour labor. If clogged severely, may need tank cleaning.

Estimated cost: $120-250