2000 NISSAN LAUREL

Typical onset: 100,000-150,000 mi

Symptoms: Cold-start ticking or tapping that may or may not quiet down when warm, Loss of power and rough idle if multiple lifters fail, Check engine light with misfire codes in severe cases

Fix: RB25 hydraulic lifters wear out and collapse, especially if oil changes were stretched. Single lifter jobs aren't worth it—you're doing all 12. Requires valve cover removal, camshaft R&R. Budget 6-8 labor hours for the full job with new lifters, cam seals, and valve cover gasket.

Estimated cost: $1,200-2,000

Typical onset: 120,000-180,000 mi

Symptoms: Coolant loss with no visible leaks, White smoke from exhaust on cold start, Milky oil or oil in coolant reservoir, Overheating under load

Fix: The RB25DE (non-turbo) is more prone due to thinner gasket spec. Full head removal, resurface mandatory (these heads warp), new head bolts, timing components while you're there. 12-16 hours labor. If the head is cracked (check while it's off), you're hunting for a used one from Japan.

Estimated cost: $2,500-4,000

Typical onset: 80,000-130,000 mi

Symptoms: Clunking when shifting from park to drive or reverse, Excessive vibration at idle in gear, Transmission sag visible underneath, Harsh shift quality

Fix: The rubber transmission mounts turn to mush and the crossmember bushings fail. The entire crossmember often needs replacement because rust gets into the mounting points. Transmission must be supported during the swap. 3-5 hours labor depending on rust severity.

Estimated cost: $600-1,200

Symptoms: ATF puddles under the front of the car, Low transmission fluid levels causing slipping or harsh shifts, Visible corrosion on steel cooler lines running to radiator

Fix: The steel hardlines rust through, especially at the fittings and bends. OEM lines are NLA for reasonable money, so most shops fabricate replacements or use universal cooler line kits. Also inspect the internal radiator cooler for cross-contamination. 2-4 hours labor plus a full ATF flush afterward.

Estimated cost: $400-800

Typical onset: 100,000-150,000 mi

Symptoms: Vibration that worsens with RPM, especially around 2,000-3,000 RPM, Visible wobble of the crank pulley when engine is running, Serpentine belt wear or throwing belts, Potential timing issues if outer ring separates completely

Fix: The rubber bonding layer between the hub and outer ring deteriorates. If the outer ring separates or shifts, you risk timing problems and accessory drive failure. Replacement requires crank pulley removal with a proper puller—do NOT hammer it. 2-3 hours labor. OEM part sourcing from Japan may be required.

Estimated cost: $500-900

Symptoms: Hesitation or stumble under acceleration, Hard starting after sitting, Loss of power at highway speeds, Lean codes if it gets bad enough

Fix: JDM fuel systems weren't designed for ethanol blends. The tank coating degrades and sends debris into the filter. These cars have an in-tank sock filter plus an inline—replace both. While you're there, inspect fuel pump health. 1.5-2 hours labor for both filters.

Estimated cost: $200-400