2002–2007 MITSUBISHI LANCER

Typical onset: 80,000-140,000 mi

Symptoms: Deep knocking sound from bottom end especially when cold, Metal shavings in oil, Loss of oil pressure, Sudden catastrophic failure with connecting rod punching through block

Fix: This engine has undersized oil passages and weak bearing design. Irregular oil changes accelerate failure. Repair requires short block replacement or engine rebuild with new main/rod bearings, sometimes pistons if cylinder walls scored. 12-18 labor hours for R&R plus machining if rebuilding. Most owners opt for used engine swap due to cost.

Estimated cost: $2,800-5,500

Typical onset: 70,000-120,000 mi

Symptoms: Transmission fluid leaking near radiator, Milky or pink transmission fluid (coolant mixing), Transmission slipping or erratic shifting, Engine overheating if coolant loss is severe

Fix: The steel cooler lines rust through or the cooler inside the radiator fails, causing cross-contamination between coolant and ATF. Requires replacement of cooler lines, radiator if internal cooler failed, full transmission flush (multiple times), and sometimes transmission rebuild if contamination caused internal damage. 4-6 hours labor for lines and radiator, add 15-20 hours if transmission needs rebuild.

Estimated cost: $800-1,200 (lines/radiator only), $2,500-3,800 (if transmission damaged)

Typical onset: 90,000-150,000 mi

Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Overheating, Milky oil on dipstick or oil cap, Bubbles in coolant reservoir when running

Fix: The 4G94 head gasket fails between cylinders or into coolant passages. Requires cylinder head removal, resurfacing, new gasket set, timing belt replacement while apart, and coolant flush. Machine shop work adds 2-3 days turnaround. 10-14 labor hours total.

Estimated cost: $1,400-2,200

Typical onset: 60,000-100,000 mi

Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive engine movement visible when accelerating, Vibration through cabin at idle, Difficulty shifting into gear

Fix: The rubber transmission mount deteriorates and tears. Common failure point on this chassis. Replacement requires supporting transmission, removing old mount, installing new. 1.5-2.5 hours labor. Inspect engine mounts at same time as they fail similarly.

Estimated cost: $180-350

Typical onset: 80,000-130,000 mi

Symptoms: Clunking over bumps from front suspension, Steering wander or poor tracking, Uneven tire wear on inside edges, Vibration through steering wheel

Fix: The front lower control arm bushings crack and separate. NHTSA recall covered some model years for arm separation risk. Requires replacement of both lower control arms (bushings not serviceable separately on most aftermarket parts). 2-3 hours labor for both sides, includes alignment after.

Estimated cost: $400-700

Typical onset: 50,000-90,000 mi

Symptoms: Hard starting especially when hot, Stumbling or hesitation under acceleration, Loss of power at highway speeds, Stalling when fuel tank below 1/4 tank

Fix: The in-tank fuel filter clogs prematurely, especially if cheap gas used regularly. Requires dropping fuel tank for access. Often discovered during diagnosis of running issues. 2-3 hours labor.

Estimated cost: $250-450

Symptoms: One or both headlights intermittently not working, Headlights flickering, Blown fuses for headlight circuit, Melted connector at headlight bulb

Fix: Multiple NHTSA recalls for exterior lighting issues. Headlight relay or multifunction switch fails, sometimes due to undersized wiring causing heat buildup. Diagnosis required to pinpoint relay vs switch vs wiring. 1-2 hours labor depending on component.

Estimated cost: $150-400