The 2017 Mustang spans from reliable daily-driver EcoBoosts to track-ready Shelbys, but all S550 platforms share door latch failures and MT-82 manual transmission woes. The GT350's Voodoo engine has catastrophic oil consumption and bearing issues that overshadow everything else.
Door Latch Failure (All Models)
Common · high severitySymptoms: Door won't close or latch properly, Door pops open while driving, Warning chime constantly active, Door appears closed but isn't secured
Fix: Replace door latch assemblies on affected doors. Ford had a recall (18S32) but many fail outside recall scope. 1.5-2 hours per door depending on access.
Estimated cost: $300-600
MT-82 Manual Transmission Lockout and Grinding (V6/GT Manual)
Common · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Lockout from 2nd or 3rd gear, especially when hot, Grinding on 3-4 shift, Difficult cold engagement into 1st or reverse, Notchy shifter feel that worsens over time
Fix: MT-82 has weak synchronizers and marginal fluid capacity. Short-term: fluid change to Motorcraft XT-M5-QS helps temporarily (1 hour). Long-term requires synchro replacement or full rebuild (12-16 hours with transmission removal).
Estimated cost: $2,500-4,200
5.2L Voodoo Engine Oil Consumption and Bearing Failure (GT350/GT350R)
Occasional · high severityTypical onset: 20,000-60,000 mi
Symptoms: Excessive oil consumption, 1+ quart per 1,000 miles, Low oil pressure warning, Metallic ticking or knocking from bottom end, Metal shavings in oil filter during changes, Catastrophic engine seizure in worst cases
Fix: Flat-plane crank Voodoo has piston ring flutter and oiling deficiencies under high RPM. Early intervention: Ford PCM reflash and monitoring. Failure requires short block replacement (40-50 hours), sometimes covered under warranty extension to 60k/7yr but many outside that window now.
Estimated cost: $18,000-25,000
Transmission Oil Cooler Line Leak (Automatic Models)
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Transmission fluid dripping near front of car, Burnt transmission fluid smell, Low fluid level on dipstick, Slipping on upshifts when fluid gets low
Fix: 10R80 automatic has external cooler lines that corrode or crack at fittings. Replace lines and flush cooler, top off fluid. 2-3 hours labor depending on line routing.
Estimated cost: $400-800
2.3L EcoBoost Head Gasket Failure
Rare · high severityTypical onset: 60,000-100,000 mi
Symptoms: White smoke from exhaust, Coolant loss with no visible leaks, Overheating under load, Oil milkshake on dipstick if severe, Misfires on cylinder 3 or 4 most common
Fix: EcoBoost head gaskets can fail between cylinders or into coolant passages, especially if overheated once. Head removal, machine work for warpage check, new gasket and bolts. 10-14 hours.
Estimated cost: $2,000-3,200
Backup Camera Intermittent Failure
Occasional · low severitySymptoms: Blue screen or 'camera unavailable' message in reverse, Intermittent function in cold or wet weather, Distorted or snowy image, Complete blackout randomly
Fix: Camera module in decklid spoiler fails from moisture intrusion or internal PCB cracks. TSB 18-2145 addresses some cases. Replace camera assembly (0.8-1.2 hours). Recall 18V-355 covered some VINs.
Estimated cost: $250-450
Rear Transmission Mount Failure (Manual Trans)
Common · low severityTypical onset: 40,000-80,000 mi
Symptoms: Clunk when engaging 1st or reverse, Excessive driveline movement during hard launches, Vibration through shifter at idle, Visible torn rubber on mount during inspection
Fix: Factory rear mount is soft and tears with spirited driving. Aftermarket polyurethane replacements last longer but increase NVH. 1.5-2 hours on lift.
Estimated cost: $200-400
EcoBoost and naturally-aspirated V6/5.0 GT models are solid buys with normal maintenance; avoid GT350s unless you have deep pockets for inevitable engine work or confirmed warranty coverage remaining.
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.