2007 SATURN SKY

Typical onset: 60,000-100,000 mi

Symptoms: rattling on cold start that fades after warmup, check engine light with cam/crank correlation codes, catastrophic loss of power with metal debris in oil, knocking from bottom end

Fix: The LNF turbo motor stretches its timing chain, causing valve timing issues and eventual piston/ringland failure. Often requires complete short block or engine replacement. 18-24 labor hours for R&R plus machine work if rebuilding. Many owners opt for used low-mile engines or reman units rather than rebuild.

Estimated cost: $4,500-8,000

Typical onset: 70,000-120,000 mi

Symptoms: transmission fluid pooling under vehicle, harsh shifting or slipping, transmission overheating warnings, burnt fluid smell

Fix: Factory cooler lines rust through at fittings, and internal cooler can clog with debris. Often discovered after transmission already damaged from running hot. Replace cooler and both lines as a set, flush system thoroughly. 3-5 hours labor. If trans is damaged, add rebuild or replacement costs.

Estimated cost: $800-1,200

Symptoms: top won't latch or unlatch electrically, slow or uneven top operation, one side raises higher than other, pump runs but top doesn't move

Fix: Hydraulic cylinders leak internally, and the pump motor wears out. Common on all Kappa convertibles regardless of mileage due to exposure and limited use. Cylinder replacement requires 4-6 hours; pump motor 2-3 hours. Parts are GM-specific and pricey.

Estimated cost: $1,200-2,000

Typical onset: 40,000-90,000 mi

Symptoms: differential fluid on inside of rear wheels, greasy buildup around axle tubes, low diff fluid causing whine or clunk on turns

Fix: GM issued recall for axle seals that can leak and allow fluid onto brake components. Even post-recall, seals can fail again. Requires axle removal and seal replacement both sides preventively. 3-4 hours labor. Check if recall was completed on any used example.

Estimated cost: $400-700

Symptoms: key won't turn in ignition, car shuts off while driving, accessories stay on when key removed, no crank/no start intermittently

Fix: GM recall for ignition switch that can slip out of run position, killing engine while driving. Lock cylinder can also wear and bind. Recall repair involves switch and cylinder replacement, 1.5-2 hours. Verify recall completion before purchase — safety critical.

Estimated cost: $0-400

Typical onset: 80,000-130,000 mi

Symptoms: extended cranking before start when hot, stumble or hesitation under boost, fuel trim codes or lean condition codes, loss of power above 4,000 rpm

Fix: Direct-injection high-pressure pump can wear, especially with poor fuel quality or infrequent filter changes. Filter is inside tank on a module (not easily serviceable). Pump replacement requires tank drop, 4-5 hours labor.

Estimated cost: $900-1,400

Typical onset: 50,000-90,000 mi

Symptoms: excessive shifter vibration, clunk when engaging clutch or selecting drive, driveline shudder on acceleration, visible torn rubber on mount

Fix: Factory transmission mount is weak and deteriorates quickly, especially with spirited driving. Replacement is straightforward, 1.5-2 hours. Upgraded polyurethane mounts available but increase NVH. Very common wear item on these cars.

Estimated cost: $200-400