2010 NISSAN ALTIMA

Typical onset: 60,000-120,000 mi

Symptoms: Whining or grinding noise during acceleration, Shuddering when accelerating from stop, Hesitation or jerking between 15-40 mph, Sudden loss of power or refusal to move, Overheating transmission fluid, Check engine light with P0868 or P17F0 codes

Fix: CVT replacement or rebuild required. Nissan extended warranty to 120k miles on some units, but many fail outside coverage. Rebuilt unit takes 8-12 hours labor; new OEM takes 10-14 hours with fluid flush and cooler inspection. Aftermarket reman units available but quality varies significantly.

Estimated cost: $3,200-5,500

Typical onset: 80,000-150,000 mi

Symptoms: Burning 1+ quart every 1,000 miles, Blue smoke from exhaust on cold start, Fouled spark plugs, Check engine light with misfire codes, Oil smell in cabin, Low oil pressure warning at highway speed

Fix: Caused by piston ring design and cylinder wall glazing. Proper fix requires engine rebuild with updated piston rings or short block replacement. Takes 18-24 hours labor for complete tear-down, hone cylinders, new rings, and reassembly. Many owners just add oil until engine seizes.

Estimated cost: $3,500-6,000

Typical onset: 70,000-110,000 mi

Symptoms: Coolant mixing with CVT fluid (strawberry milkshake appearance), Transmission overheating, White smoke from exhaust, Sweet smell from vents, Sudden transmission failure after coolant contamination

Fix: Cooler internal rupture allows coolant and CVT fluid to mix, destroying the transmission. Requires immediate cooler replacement, complete CVT fluid flush (if caught early), or full CVT replacement if contamination occurred. 3-5 hours for cooler only; add 10+ hours if CVT damaged. Prevention: inspect cooler hoses regularly.

Estimated cost: $800-1,200 (cooler only); $4,000-6,000 (if CVT damaged)

Typical onset: 100,000-180,000 mi

Symptoms: Loud knocking from bottom end, Metal shavings in oil, Sudden oil pressure drop, Engine seizure, Connecting rod bearing noise that progresses rapidly

Fix: Often caused by prolonged oil consumption issues starving bearings. Requires complete engine rebuild or replacement. Crankshaft R&R with bearing replacement takes 16-22 hours if salvageable; most get remanufactured long blocks instead at 12-16 hours swap time.

Estimated cost: $4,000-7,500

Typical onset: 60,000-100,000 mi

Symptoms: Clunking over bumps, Rattling from front suspension, Steering wheel vibration, Poor wheel alignment retention, Uneven tire wear on inside edges

Fix: Upper strut mount bearing plates crack and separate. Both sides should be replaced together. 2.5-3.5 hours labor for pair including alignment. Sometimes masked by worn struts; recommend replacing mounts with struts as assembly.

Estimated cost: $400-700 (mounts only); $800-1,200 (with struts)

Typical onset: 90,000-140,000 mi

Symptoms: Fuel gauge reading empty when tank is full, Erratic gauge movement, Gauge stuck at full, Fuel warning light stays on, No fuel gauge reading at all

Fix: Sending unit float arm or resistor strip fails. Requires fuel tank drop and pump assembly removal. 2-3 hours labor. Common enough that many owners just use trip odometer instead of fixing.

Estimated cost: $350-600

Typical onset: 100,000-150,000 mi

Symptoms: Check engine light with P0420/P0430 codes, Rattling from underneath when cold, Failed emissions test, Reduced power and fuel economy, Sulfur smell from exhaust

Fix: Often killed by oil-burning fouling the substrate. Both front and rear cats may need replacement on 2.5L. 3-4 hours labor for both. Aftermarket cats cheaper but may not last or pass inspection in strict states. Address oil consumption first or new cats will fail quickly.

Estimated cost: $800-2,200