The 2001 Durango shares its truck-based platform with the Dakota and suffers from predictable transmission failures, notorious front suspension ball joint wear, and engine longevity issues on higher-mileage V8s. It's rugged when maintained but expensive when neglected.
45RFE/46RE Automatic Transmission Failure
Common · high severityTypical onset: 90,000-150,000 mi
Symptoms: Harsh 2-3 or 3-4 shifts, slipping under load, Delayed engagement when shifting into Drive or Reverse, Transmission overheating, burnt fluid smell, Check Engine light with solenoid pack or pressure control codes
Fix: Solenoid pack replacement buys time (4-6 hours labor) but most need full rebuild or replacement by 120k. Cooler line leaks accelerate failure. Figure 12-16 hours for R&R and rebuild.
Estimated cost: $2,200-3,800
Upper and Lower Ball Joint Failure
Common · high severityTypical onset: 70,000-110,000 mi
Symptoms: Clunking over bumps, especially when turning, Wandering steering, poor return to center, Uneven tire wear on inside or outside edges, Visible play when prying on suspension components during inspection
Fix: Upper ball joints are pressed into control arms and fail first; many techs replace the whole upper control arm assembly to save time. Lowers can be pressed out but require alignment afterward. Budget 3-5 hours per side for uppers, 2-3 hours per side for lowers. Do both sides and all four corners if one fails—others are close behind.
Estimated cost: $800-1,400
4.7L V8 Engine Failure (Piston/Ring/Bearing Wear)
Occasional · high severityTypical onset: 120,000-180,000 mi
Symptoms: Excessive oil consumption, blue smoke on startup or acceleration, Rod knock or bottom-end rattle, especially when cold, Loss of compression, rough idle, misfires, Coolant in oil or oil in coolant if head gaskets are involved
Fix: The 4.7L PowerTech has a reputation for piston slap and ring land failure if oil changes were skipped. Bearing wear follows. A full rebuild (pistons, rings, bearings, head gaskets) runs 20-30 hours; many owners opt for a reman long block (12-16 hours swap). The 5.9L Magnum is more durable but thirstier.
Estimated cost: $3,500-6,500
Plenum Gasket Leak (5.2L/5.9L Magnum V8)
Common · medium severityTypical onset: 80,000-130,000 mi
Symptoms: Rough idle, hesitation on acceleration, Check Engine light with lean codes (P0171/P0174), Whistling or hissing noise from intake area, Oil residue or carbon buildup visible inside intake plenum
Fix: The composite intake manifold develops vacuum leaks at the plenum gasket. Requires removing upper plenum, cleaning surfaces, and installing updated Hughes or Mopar Performance gasket. 3-5 hours labor. Also inspect for EGR tube leaks while you're in there.
Estimated cost: $450-750
Front Wheel Hub Bearing Assembly Failure
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Growling or humming noise that increases with speed, Noise changes pitch during turns (louder on one side), ABS or traction control warning lights intermittently, Excessive wheel play when jacked up and rocked by hand
Fix: Unit bearing assemblies bolt to the knuckle; straightforward replacement but requires hub puller or press if seized. 2-3 hours per side. Do both fronts if one fails past 80k—second side usually follows within 10-20k miles. Recall 04V-373 addressed some early failures but most wear out naturally.
Estimated cost: $350-600
EVAP System and Fuel System Leaks
Occasional · low severityTypical onset: 100,000+ mi
Symptoms: Check Engine light with P0442, P0456 (small/large EVAP leak), Fuel smell near tank or filler neck, Hissing when removing fuel cap, or cap won't seal properly, Cracked fuel lines or rotted rubber hoses under vehicle
Fix: Common culprits: fuel filler neck corrosion (especially in rust belt), cracked EVAP canister, leaking vent valve, or deteriorated fuel filter hoses. Diagnosis with smoke machine takes 1 hour; replacement of filler neck or canister 2-3 hours depending on access. Fuel filter itself is inline under driver side—replace every 30k to prevent pump strain.
Estimated cost: $200-650
Transfer Case Mode Selector and Linkage Issues (4WD)
Occasional · medium severitySymptoms: 4WD won't engage or disengage, dash indicator flashing, Grinding or popping when shifting into 4WD, Linkage feels loose or disconnected at shifter, Transfer case stuck in neutral or 2WD
Fix: NV231 or NV244 transfer case is robust, but the floor-mounted shifter linkage wears at bushings and pivot points. Also check for failed mode sensor or motor on NV244 (electronic shift). Linkage bushings are cheap (1 hour), sensor/motor replacement 2-3 hours. Fluid should be changed every 60k—neglect causes mode fork wear.
Estimated cost: $150-700
Buy a well-maintained one with records under 100k miles and budget $2k for deferred front-end work—or walk away if the transmission shifts hard or the engine rattles.
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.