The 2016 Durango on the WK2 platform is a capable three-row SUV undermined by serious powertrain reliability concerns, particularly the ZF 8-speed transmission and catastrophic engine failures on the 3.6L Pentastar. The 5.7L Hemi is more robust but suffers its own valvetrain issues.
ZF 8-Speed Transmission Oil Cooler Failure
Common · high severityTypical onset: 60,000-100,000 mi
Symptoms: Transmission fluid in coolant reservoir or milky transmission fluid, Transmission slipping, harsh shifts, or delayed engagement, Check engine light with transmission-related codes, Overheating transmission, limp mode
Fix: Replace transmission oil cooler, flush both cooling system and transmission completely (critical to prevent trans damage), replace contaminated fluid. If caught late, full transmission rebuild required. 4-6 hours labor for cooler only, 15-20 hours if trans is damaged.
Estimated cost: $800-1,200 for cooler replacement; $3,500-5,500 if transmission rebuild needed
3.6L Pentastar Catastrophic Engine Failure (Piston/Rod/Bearing)
Occasional · high severityTypical onset: 80,000-150,000 mi
Symptoms: Sudden loud knocking or ticking from engine bay, Metal shavings in oil, rapid oil consumption, Loss of power, misfires on multiple cylinders, Complete engine seizure in worst cases
Fix: Pentastar engines in this era suffer from piston ring land failures, spun bearings, and connecting rod issues. Once symptoms appear, requires short block or complete engine replacement. 18-24 hours labor for engine R&R.
Estimated cost: $5,000-8,500 for remanufactured engine installed; $7,000-10,000+ for dealer long block
5.7L Hemi Multi-Displacement System (MDS) Lifter and Cam Failure
Occasional · high severityTypical onset: 90,000-140,000 mi
Symptoms: Persistent ticking or tapping noise from valve covers, especially at idle, Check engine light with misfire codes on cylinders 1, 4, 6, or 7, Rough idle, loss of power under load, Metal debris in oil filter
Fix: MDS lifters stick or collapse, wiping out camshaft lobes. Requires both camshafts, all 16 lifters, pushrods inspection, and often cylinder head work if valves kissed pistons. 12-16 hours labor.
Estimated cost: $3,500-5,500
Front Brake Caliper Seizing
Common · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Vehicle pulls to one side during braking, Burning smell from front wheels after driving, One front wheel excessively hot to touch, Premature brake pad wear on one side, rotor discoloration
Fix: Front caliper slide pins corrode and seize, or caliper pistons stick. Replace affected caliper(s), flush brake fluid, resurface or replace rotor. Recall 18V-355 addressed some units but issue persists. 1.5-2.5 hours per side.
Estimated cost: $350-600 per side
Transmission Mount Failure
Common · low severityTypical onset: 60,000-110,000 mi
Symptoms: Clunking sound when shifting from Park to Drive or Reverse, Vibration through floorboard during acceleration, Excessive engine/trans movement visible when revving in Park
Fix: Rear transmission mount rubber deteriorates, allowing excessive drivetrain movement. Replace mount, inspect other mounts while accessible. 1-1.5 hours labor.
Estimated cost: $250-400
Fuel System Vapor Leak (Recall-Related)
Occasional · medium severitySymptoms: Strong fuel odor in cabin or near fuel tank, Check engine light with EVAP system codes (P0442, P0456), Fuel smell more pronounced after filling tank
Fix: Fuel vapor lines and EVAP system components crack or disconnect. Recall 18V-026 covered fuel fill tube replacements. Requires diagnosis of EVAP system, smoke test, replacement of lines or fuel filler neck. 2-3 hours labor.
Estimated cost: $300-700 depending on components
TIPM (Totally Integrated Power Module) Failures
Occasional · medium severityTypical onset: 70,000-120,000 mi
Symptoms: Intermittent electrical gremlins: windows, locks, wipers, fuel pump cutting out, No-start condition with clicking relays, Warning lights illuminating randomly, Fuel pump relay failure most common symptom
Fix: TIPM (fuse/relay box) develops internal failures, particularly fuel pump relay circuits. Chrysler has extended warranty on some, otherwise requires TIPM replacement and programming. 2-3 hours labor.
Estimated cost: $800-1,400 for TIPM replacement
Buy the 5.7L Hemi version only, avoid the 3.6L Pentastar, budget $2,000-3,000 for deferred maintenance, and expect a transmission cooler replacement in your future — otherwise you're gambling on an expensive engine rebuild.
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.