The 2007 Saturn Ion is a budget compact with a troublesome CVT automatic transmission, catastrophic 2.2L engine failures due to oil consumption, and significant electrical gremlins. The platform's cost-effective design means many owners face major repairs that exceed the vehicle's value.
Catastrophic 2.2L Ecotec Engine Failure from Excessive Oil Consumption
Common · high severityTypical onset: 80,000-150,000 mi
Symptoms: Blue smoke on startup or acceleration, Oil consumption 1+ quart per 1,000 miles, Check engine light with misfire codes, Sudden loss of power and knocking before complete failure, Metal shavings in oil
Fix: Piston ring land failure allows oil burning that scores cylinders, requiring complete engine rebuild or replacement. Rebuild involves boring cylinders, new pistons/rings, bearings, gaskets. Figure 18-25 hours labor for proper rebuild, 8-12 hours for used engine swap. Many owners opt for junkyard engine due to cost.
Estimated cost: $3,500-6,500
VTi CVT Transmission Failure and Shuddering
Common · high severityTypical onset: 60,000-120,000 mi
Symptoms: Severe shuddering during acceleration, Slipping or delayed engagement, Whining or grinding noises, Complete loss of forward gears, Transmission overheating warnings
Fix: The continuously variable transmission uses a chain and cone system that wears prematurely. Metal contamination destroys the system. Transmission cooler often fails first, accelerating damage. Requires complete transmission replacement—rebuilds rarely hold. 6-8 hours labor plus core charge.
Estimated cost: $2,800-4,500
Ignition Switch Failure and No-Start Condition
Common · high severitySymptoms: Key turns but nothing happens, Intermittent no-start requiring multiple attempts, Complete electrical shutdown while driving, Accessories work but starter doesn't engage, Dashboard lights flickering when key turned
Fix: NHTSA recall component but many units still fail post-recall. Internal contacts wear and fail to complete starter circuit. Replacement involves removing steering column covers and disabling airbag system. 1.5-2.5 hours labor. Critical safety issue as engine can shut off during driving.
Estimated cost: $250-450
Electric Power Steering (EPS) Complete Failure
Occasional · high severityTypical onset: 70,000-130,000 mi
Symptoms: Sudden loss of all power steering assist, SERVICE STEERING message on dash, Heavy steering effort at all speeds, Grinding noise from steering column, Intermittent assist cutting in and out
Fix: Motor-driven steering column assembly fails—either motor burns out or control module faults. Subject to recall but failures continue. Requires complete steering column replacement. No manual steering backup makes this dangerous at speed. 2.5-3.5 hours labor.
Estimated cost: $600-1,200
Body Control Module (BCM) and Electrical Gremlins
Occasional · medium severitySymptoms: Random warning lights illuminating, Power windows/locks operating on their own, Gauge cluster going completely dark, Radio and accessories resetting constantly, Battery drain causing no-start, Exterior lights not functioning properly
Fix: BCM and related modules prone to failure, causing cascading electrical issues. Diagnosis is time-intensive due to multiple potential failure points. BCM replacement requires programming and key relearn. 2-4 hours labor for replacement, but diagnosis can add significant time. Many issues traced to corroded grounds behind kick panels.
Estimated cost: $400-900
Fuel Pump Failure and Pressure Loss
Occasional · medium severityTypical onset: 90,000-150,000 mi
Symptoms: Hesitation or stumbling during acceleration, Stalling when fuel tank below 1/4, Hard starting or extended cranking, Loss of power under load, Whining noise from rear of vehicle
Fix: Fuel pump assembly fails, often preceded by strainer clogging. Subject to recall for some units. Requires dropping fuel tank for access. Replace entire pump assembly, not just pump. 2-3 hours labor. Common enough that preventive replacement at 100k is wise.
Estimated cost: $400-700
Hard pass unless free—the combination of engine failures and CVT issues makes this a financial black hole after 100k miles, with repair costs routinely exceeding vehicle value.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.