What is the 2015-2018 Ford Transit 3.5L EcoBoost First-Gen Timing Chain Stretch and Rattle?

The first-generation 3.5L EcoBoost (2011-2016) used in the 2015-2017 Ford Transit 350/350 HD with the twin-turbocharged V6 is known for premature timing chain stretch. The single-chain-per-bank design (two chains total) stretches as the links wear individually, causing the chain… Repairs typically run $1,500-$4,500. Severity: high.

What is the 2015-2023 Ford Transit Front Brake Caliper Sticking / Premature Pad and Rotor Wear?

Front brake calipers on the Ford Transit, especially the heavy-duty variants (350 and 350HD), are prone to sticking due to corrosion of the caliper slide pins and guide bolts. The high gross vehicle weight combined with stop-and-go commercial use accelerates heat buildup, which b… Repairs typically run $150-$900. Severity: high.

What is the 2015-2020 Ford Transit Body Control Module (BCM) Failure Causing Intermittent Electrical Gremlins?

Ford Transit BCMs, particularly on 2015–2019 models, have been reported to fail or develop software faults causing a wide array of seemingly unrelated electrical issues including random door lock cycling, instrument cluster malfunctions, and accessory power loss. Water intrusion… Repairs typically run $300-$1,200. Severity: high.

What is the 2015-2021 Ford Transit PCM/ECM Software Calibration Causing Stall or No-Start After Refueling?

Ford Transit owners, particularly those with the 3.5L EcoBoost and 3.7L V6, have reported stalling or no-start conditions immediately after refueling due to fuel vapor purge system calibration issues within the PCM. The evaporative emission canister purge valve and PCM calibratio… Severity: high.

What is the 2015-2023 Ford Transit Rear Leaf Spring U-Bolt and Spring Pack Fatigue / Breakage?

Ford Transit rear leaf springs and their associated U-bolts have been reported to crack, fatigue, or break outright on high-roof and extended-length variants that are operated at or near maximum payload, particularly in commercial fleet service. The high static load combined with… Repairs typically run $350-$1,200. Severity: high.

What is the 2015-2019 Ford Transit 3.7L Ti-VCT Throttle Body Failure / Electronic Throttle Control (ETC) Limp Mode?

Owners report sudden loss of power with a wrench light and reduced throttle response, often while cruising or accelerating. NHTSA complaints and Ford service information describe electronic throttle body internal faults (TPS/actuator) that can trigger ETC failsafe and limp mode o… Repairs typically run $350-$900. Severity: high.

What is the 2015-2020 Ford Transit Electric Power Steering (EPAS) Assist Loss / Steering Fault Warnings?

NHTSA complaints include intermittent or sudden loss of power steering assist with warning messages, making the van difficult to steer at low speeds. Reports often describe the issue occurring after a restart, during parking maneuvers, or intermittently with electrical/communicat… Repairs typically run $250-$3,200. Severity: high.

What is the 2015-2019 Ford Transit Brake Vacuum Pump Oil Leak / Reduced Brake Assist (3.5L EcoBoost & 3.7L)?

Owner complaints and service reports document vacuum pump oil leaks that can reduce available brake assist and/or create oil seepage on the engine. The mechanical vacuum pump seals can leak, and in some cases vacuum output drops, leading to a harder brake pedal especially after r… Repairs typically run $350-$1,100. Severity: high.

What is the 2015-2022 Ford Transit Turbo Wastegate Actuator Sticking Causing Limp Mode?

The 3.5L EcoBoost twin-turbo Transit models experience wastegate actuator sticking, particularly on the passenger-side turbo. Carbon buildup and heat cycling cause the wastegate pivot to seize, resulting in either overboosting (wastegate stuck closed) or underboosting (stuck open… Repairs typically run $200-$2,500. Severity: high.

What is the 2015-2024 Ford Transit Roof Water Leaks and Premature Rust - All Body Styles?

Ford Transit vans are well-known for water infiltration through the roof, particularly in medium-roof and high-roof configurations. Water intrudes through multiple paths: (1) factory roof plug holes (the 2015 roof has 16 plugged holes for optional roof rack and ancillary hardware… Repairs typically run $50-$3,500. Severity: medium.

What is the 2015-2020 Ford Transit 6R80 Transmission Torque Converter Shudder at Light Throttle?

Ford Transit models equipped with the 6R80 6-speed automatic transmission are prone to a torque converter clutch (TCC) shudder felt as a vibration or flutter between approximately 40–55 mph during light throttle cruise conditions. The issue is caused by degradation of the transmi… Repairs typically run $100-$1,800. Severity: medium.

What is the 2015-2022 Ford Transit Instrument Cluster / Speedometer Erratic Readings and Gauge Dropout?

Multiple Ford Transit owners and fleet operators have reported the instrument cluster exhibiting erratic speedometer behavior, gauge dropouts, and spontaneous warning light illumination without stored fault codes corresponding to the indicated faults. The issue is linked to a fau… Severity: medium.

What is the 2015-2024 Ford Transit Sliding Door Track/Roller Wear Causing Binding, Noise, or Door Not Closing?

NHTSA complaints and fleet/owner reports commonly cite the Transit sliding door becoming difficult to open/close, popping, grinding, or failing to latch. Wear in the center roller/hinge and track hardware can cause misalignment, especially on high-use cargo vans. The problem ofte… Repairs typically run $200-$1,200. Severity: medium.

What is the 2015-2022 Ford Transit Front Suspension Radius Arm Bushing Premature Wear and Cracking?

The Ford Transit uses a twin I-beam or independent front suspension with radius arm bushings that are known to wear or crack prematurely, especially in high-mileage commercial fleets or when the vehicle is operated at or near maximum payload regularly. Worn bushings cause the fro… Repairs typically run $200-$600. Severity: medium.

What is the 2015-2022 Ford Transit Rear HVAC Line/Expansion Valve Leaks (Dual A/C) Causing Loss of Refrigerant?

Transits equipped with rear A/C (dual HVAC) have documented complaints of repeated refrigerant loss and poor cooling, often traced to leaks at rear A/C lines, fittings, or rear expansion valve connections. Corrosion, vibration, and seal degradation can lead to slow leaks that are… Repairs typically run $300-$1,800. Severity: medium.

What is the 2015-2024 Ford Transit Rear Axle Oil Seal Leak at Axle Shaft?

The Ford Transit rear-wheel-drive models develop axle shaft oil seal leaks at the rear differential, allowing gear oil to weep past the axle seals onto the brake backing plates and brake shoes/pads. The leak is often slow enough to go unnoticed until a rear brake inspection revea… Repairs typically run $250-$700. Severity: medium.

What is the 2015-2024 Ford Transit Oil Pan Drain Plug Thread Stripping?

The Ford Transit aluminum oil pan is prone to drain plug thread stripping, especially in vehicles serviced at quick-lube shops or with frequent oil changes. The aluminum pan threads are softer than the steel drain plug, and over-torquing or cross-threading during routine oil chan… Repairs typically run $50-$800. Severity: medium.

What is the 2015-2022 Ford Transit Alternator Premature Failure and Voltage Regulator Issues?

Ford Transit vans experience premature alternator failure, often between 50,000-80,000 miles. The internal voltage regulator fails first, causing undercharging or overcharging conditions. Commercial Transit vans with aftermarket upfitter packages (extra lighting, inverters, refri… Repairs typically run $400-$1,000. Severity: medium.

Ford · Known Issues

2015 Ford Transit Problems: 21 Known Issues

2015 model year · 6,320+ owner reports · Updated September 2026

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According to Au7o's analysis of 6,320+ owner reports, the 2015 Ford Transit has 21 documented known issues, with 11 rated critical. The most serious are 3.5L EcoBoost Twin Turbocharger Failure ($1,200-$3,500 repair), 3.5L EcoBoost First-Gen Timing Chain Stretch and Rattle ($1,500-$4,500 repair), Front Brake Caliper Sticking / Premature Pad and Rotor Wear ($150-$900 repair), Body Control Module (BCM) Failure Causing Intermittent Electrical Gremlins ($300-$1,200 repair), PCM/ECM Software Calibration Causing Stall or No-Start After Refueling, Cooling System Degas Bottle (Coolant Reservoir) Cracking/Leak Leading to Overheating ($150-$600 repair), Rear Leaf Spring U-Bolt and Spring Pack Fatigue / Breakage ($350-$1,200 repair), 3.7L Ti-VCT Throttle Body Failure / Electronic Throttle Control (ETC) Limp Mode.

Frequently Asked Questions

What are the most common Ford Transit problems?

According to Au7o's analysis of 6,320+ owner reports, the 2015 Ford Transit has 21 documented issues. The most frequently reported are: 3.5L EcoBoost Twin Turbocharger Failure, 3.5L EcoBoost First-Gen Timing Chain Stretch and Rattle, Front Brake Caliper Sticking / Premature Pad and Rotor Wear. Of these, 11 are rated critical and should be addressed promptly.

Is the Ford Transit reliable?

The 2015 Ford Transit has 21 known issues documented across 6,320+ owner reports. 11 issues are rated critical: 3.5L EcoBoost Twin Turbocharger Failure and 3.5L EcoBoost First-Gen Timing Chain Stretch and Rattle and Front Brake Caliper Sticking / Premature Pad and Rotor Wear and Body Control Module (BCM) Failure Causing Intermittent Electrical Gremlins and PCM/ECM Software Calibration Causing Stall or No-Start After Refueling and Cooling System Degas Bottle (Coolant Reservoir) Cracking/Leak Leading to Overheating and Rear Leaf Spring U-Bolt and Spring Pack Fatigue / Breakage and 3.7L Ti-VCT Throttle Body Failure / Electronic Throttle Control (ETC) Limp Mode and Electric Power Steering (EPAS) Assist Loss / Steering Fault Warnings and Brake Vacuum Pump Oil Leak / Reduced Brake Assist (3.5L EcoBoost & 3.7L) and Turbo Wastegate Actuator Sticking Causing Limp Mode. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Ford Transit problems?

Repair costs for known Ford Transit issues range from $50 to $4,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 3.5L EcoBoost Twin Turbocharger Failure, typically costs $1,200-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2015-2024 Ford Transit 3.5L EcoBoost Twin Turbocharger Failure?

The Ford Transit 350/350 HD with the 3.5L EcoBoost twin-turbocharged V6 experiences turbocharger failures from inadequate lubrication, carbon buildup in the turbo housings, wastegate actuator failure, and turbo bearing wear. OMS AutoParts and Autodoc document common Transit turbo… Repairs typically run $1,200-$3,500. Severity: high.

All 21 Known Issues

Other Ford Models

Frequently Asked Questions

What are the most common Ford Transit problems?

Is the Ford Transit reliable?

How much does it cost to fix common Ford Transit problems?

What is the 2015-2024 Ford Transit 3.5L EcoBoost Twin Turbocharger Failure?

When Issues Typically Appear

2015-2024 Ford Transit: 3.5L EcoBoost Twin Turbocharger Failure#

2015-2018 Ford Transit: 3.5L EcoBoost First-Gen Timing Chain Stretch and Rattle#

2015-2019 Ford Transit: 3.7L Ti-VCT Throttle Body Failure / Electronic Throttle Control (ETC) Limp Mode#

2015-2022 Ford Transit: Turbo Wastegate Actuator Sticking Causing Limp Mode#

2015-2024 Ford Transit: Oil Pan Drain Plug Thread Stripping#

2015-2023 Ford Transit: Front Brake Caliper Sticking / Premature Pad and Rotor Wear#

2015-2019 Ford Transit: Brake Vacuum Pump Oil Leak / Reduced Brake Assist (3.5L EcoBoost & 3.7L)#

2015-2020 Ford Transit: Body Control Module (BCM) Failure Causing Intermittent Electrical Gremlins#

2015-2022 Ford Transit: Instrument Cluster / Speedometer Erratic Readings and Gauge Dropout#

2015-2022 Ford Transit: Alternator Premature Failure and Voltage Regulator Issues#

2015-2023 Ford Transit: Rear Leaf Spring U-Bolt and Spring Pack Fatigue / Breakage#

2015-2022 Ford Transit: Front Suspension Radius Arm Bushing Premature Wear and Cracking#

2015-2021 Ford Transit: PCM/ECM Software Calibration Causing Stall or No-Start After Refueling#

2015-2020 Ford Transit: Cooling System Degas Bottle (Coolant Reservoir) Cracking/Leak Leading to Overheating#

2015-2020 Ford Transit: Electric Power Steering (EPAS) Assist Loss / Steering Fault Warnings#

2015-2024 Ford Transit: Roof Water Leaks and Premature Rust - All Body Styles#

2015-2024 Ford Transit: Sliding Door Track/Roller Wear Causing Binding, Noise, or Door Not Closing#

2015-2024 Ford Transit: Rear Axle Oil Seal Leak at Axle Shaft#

2015-2023 Ford Transit: Driveshaft Center Support / Carrier Bearing Failure#

2015-2020 Ford Transit: 6R80 Transmission Torque Converter Shudder at Light Throttle#

2015-2022 Ford Transit: Rear HVAC Line/Expansion Valve Leaks (Dual A/C) Causing Loss of Refrigerant#