What is the 2015-2019 Ford Mustang 2.3L EcoBoost Head Gasket Failure and Coolant Intrusion?

The 2.3L EcoBoost engine in 2015-2019 Mustangs is prone to head gasket failure, particularly in vehicles that experience repeated heat cycles or are driven hard. Block distortion over multiple thermal cycles creates gaps between the engine block and cylinder head that the gasket… Repairs typically run $1,500-$4,500. Severity: high.

What is the 2015-2018 Ford Mustang EcoBoost Coolant Intrusion into Cylinders?

Early 2.3L EcoBoost Mustangs can experience coolant intrusion into the combustion chamber through cracked cylinder head or head gasket failure. This can cause white smoke from exhaust, coolant loss, and potential engine damage if not addressed. Repairs typically run $1,500-$4,500. Severity: high.

What is the 2015-2023 Ford Mustang Independent Rear Suspension Clunk and Noise Over Bumps?

The S550 Mustang's independent rear suspension (IRS) is prone to developing clunking or knocking noises when going over bumps, accelerating from a stop, or during cornering. Common causes include loose sway bar end links, loose subframe bolts, worn or binding shock mounts, loose… Repairs typically run $50-$600. Severity: medium.

What is the 2015-2023 Ford Mustang Backup Camera Intermittent Failure and Black Screen?

The backup camera frequently exhibits intermittent operation, showing a black or blank screen when reverse is engaged. The issue is often caused by wiring being pinched in the trunk lid, corroded connections at the rear license plate light area, or a failing camera unit. Repairs typically run $50-$600. Severity: medium.

What is the 2015-2023 Ford Mustang Brake Pedal Bumper Failure Causing Limp Mode and Battery Drain?

A small plastic clip called the brake pedal bumper/stopper can break and fall out of position, causing the brake light switch to remain constantly engaged. This results in brake lights staying on even when the pedal is released (including when the car is off, draining the battery… Repairs typically run $2-$250. Severity: medium.

What is the 2015-2023 Ford Mustang Brake Booster Hissing/Failure (Track-Driven)?

Performance Mustangs (GT350, GT500, Mach 1) that are tracked or driven hard can experience brake booster failures or vacuum leaks, causing a hissing sound and harder brake pedal feel. The standard brake booster is undersized for sustained track use. Repairs typically run $300-$1,500. Severity: medium.

What is the 2015-2021 Ford Mustang P0430 — Bank 2 Catalytic Converter Efficiency Loss (Driver-Side Cat, TSB 19-2201)?

P0430 is the Bank 2 (driver-side) mirror of P0420 on the 5.0L Coyote Mustang. On 2018-2019 5.0L cars with the automatic, a set P0430 almost always points to a failed driver-side catalytic converter — this is a documented factory issue covered by Ford TSB 19-2201 for cars built on… Repairs typically run $120-$1,600. Severity: medium.

What is the 2015-2023 Ford Mustang Manual Transmission Hydraulic Clutch Pedal Sticks to the Floor?

S550 Mustangs with the 6-speed manual can have the clutch pedal stick on or near the floor and fail to return, most often during spirited or high-RPM driving and in hot weather. The cause is the hydraulic clutch actuation circuit - air ingestion, a degraded/flexing factory plasti… Repairs typically run $100-$1,200. Severity: medium.

What is the 2015-2023 Ford Mustang 2.3L EcoBoost Turbo Wastegate Rattle and P0299 Underboost / Limp Mode?

The 2.3L EcoBoost's turbocharger wastegate develops play in the actuator linkage - a missing/worn wave spring and a loose wastegate arm let the flapper rattle, and the actuator can stop holding boost. As it wears the engine logs P0299 (underboost) and drops into reduced-power lim… Repairs typically run $150-$2,200. Severity: medium.

What is the 2015-2021 Ford Mustang P0420 — Bank 1 Catalytic Converter Efficiency Loss (Passenger-Side Cat / Downstream O2 Sensor)?

On the Coyote 5.0L Mustang GT, P0420 sets when the Bank 1 (passenger-side) downstream oxygen sensor sees the rear catalyst behaving too much like the front sensor, meaning the catalyst is no longer scrubbing exhaust efficiently. On 2018-2019 5.0L cars this is a recognized factory… Repairs typically run $120-$1,600. Severity: medium.

What is the 2015-2023 Ford Mustang 5.0L Coyote Engine Tick/Knock Noise at Idle?

Two distinct tick patterns affect 5.0L Coyote V8 in 2015-2023 Mustang depending on engine generation. Gen 2 Coyote (2015-2017): light tick at idle and on cold start, commonly attributed to valve lash / lifter operation; generally cosmetic and not associated with engine damage. Ge… Repairs typically run $0-$3,000. Severity: low.

What is the 2015-2020 Ford Mustang SYNC 3 Infotainment Freezing/Black Screen?

The SYNC 3 infotainment system can freeze, display a black screen, or reboot randomly. This affects navigation, audio, and climate control displays. Issues are often caused by software bugs or APIM (Accessory Protocol Interface Module) hardware failures. Repairs typically run $0-$1,200. Severity: low.

What is the 2015-2023 Ford Mustang HVAC Blend Door Actuator Failure?

The HVAC blend door actuators can fail, causing clicking noises from the dashboard, inability to control air temperature, or air only blowing hot or cold. The actuators are plastic and prone to gear stripping. Multiple actuators may fail over time. Repairs typically run $50-$400. Severity: low.

What is the 2015-2023 Ford Mustang P0442 — Small EVAP Leak from Failing Canister Purge Valve (Recurring Revised Part)?

On the S550 Mustang (both 2.3L EcoBoost and 5.0L GT), P0442 (small EVAP leak) most commonly traces to the canister purge valve solenoid, a part Ford has revised through numerous part-number iterations because the original design fails repeatedly. EcoBoost owners report installing… Repairs typically run $20-$350. Severity: low.

Ford · Known Issues

2017 Ford Mustang Problems: 18 Known Issues

2017 model year · 71,040+ owner reports · Updated September 2026

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According to Au7o's analysis of 71,040+ owner reports, the 2017 Ford Mustang has 18 documented known issues, with 6 rated critical. The most serious are Door Latch Pawl Spring Tab Failure (Recall 16S30) ($0-$0 repair), MT82 Manual Transmission Grinding and Shifting Issues ($150-$6,000 repair), 2.3L EcoBoost Head Gasket Failure and Coolant Intrusion ($1,500-$4,500 repair), EcoBoost Coolant Intrusion into Cylinders ($1,500-$4,500 repair), Shelby GT350/GT350R 5.2L Voodoo Oil Cooler Tube Assembly Leak (Recall 16V779 / 16S40) ($0-$0 repair) and P0016 — Bank 1 Crank/Cam Correlation from Coyote Timing Chain Stretch or Stuck VCT Phaser ($150-$2,500 repair). The most commonly reported issue is Door Latch Pawl Spring Tab Failure (Recall 16S30) with 50,000 owner reports. Across all issues with published estimates, repair costs range from $2 to $6,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Ford Mustang problems?

According to Au7o's analysis of 71,040+ owner reports, the 2017 Ford Mustang has 18 documented issues. The most frequently reported are: Door Latch Pawl Spring Tab Failure (Recall 16S30), MT82 Manual Transmission Grinding and Shifting Issues, 2.3L EcoBoost Head Gasket Failure and Coolant Intrusion. Of these, 6 are rated critical and should be addressed promptly.

Is the Ford Mustang reliable?

The 2017 Ford Mustang has 18 known issues documented across 71,040+ owner reports. 6 issues are rated critical: Door Latch Pawl Spring Tab Failure (Recall 16S30) and MT82 Manual Transmission Grinding and Shifting Issues and 2.3L EcoBoost Head Gasket Failure and Coolant Intrusion and EcoBoost Coolant Intrusion into Cylinders and Shelby GT350/GT350R 5.2L Voodoo Oil Cooler Tube Assembly Leak (Recall 16V779 / 16S40) and P0016 — Bank 1 Crank/Cam Correlation from Coyote Timing Chain Stretch or Stuck VCT Phaser. 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 Mustang problems?

Repair costs for known Ford Mustang issues range from $0 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Door Latch Pawl Spring Tab Failure (Recall 16S30), typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2015-2017 Ford Mustang Door Latch Pawl Spring Tab Failure (Recall 16S30)?

A component within the door latches called the pawl spring tab may break, preventing doors from latching properly or giving a false sense that the door is securely closed when it is not. This is a serious safety defect as doors could open unexpectedly during driving. Ford identif… Repairs typically run $0-$0. Severity: high.

What is the 2015-2023 Ford Mustang MT82 Manual Transmission Grinding and Shifting Issues?

The MT82 6-speed manual transmission is notorious for multiple issues including gear grinding (especially 1st to 2nd and into 3rd gear when cold), high RPM lockout preventing shifts, notchy/difficult shifts, premature synchronizer wear, and in severe cases complete transmission f… Repairs typically run $150-$6,000. Severity: high.

All 18 Known Issues

Other Ford Models

Frequently Asked Questions

What are the most common Ford Mustang problems?

Is the Ford Mustang reliable?

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

What is the 2015-2017 Ford Mustang Door Latch Pawl Spring Tab Failure (Recall 16S30)?

What is the 2015-2023 Ford Mustang MT82 Manual Transmission Grinding and Shifting Issues?

2015-2019 Ford Mustang: 2.3L EcoBoost Head Gasket Failure and Coolant Intrusion#

2015-2017 Ford Mustang: Shelby GT350/GT350R 5.2L Voodoo Oil Cooler Tube Assembly Leak (Recall 16V779 / 16S40)#

2011-2018 Ford Mustang: P0016 — Bank 1 Crank/Cam Correlation from Coyote Timing Chain Stretch or Stuck VCT Phaser#

2015-2023 Ford Mustang: 2.3L EcoBoost Turbo Wastegate Rattle and P0299 Underboost / Limp Mode#

2015-2023 Ford Mustang: 5.0L Coyote Engine Tick/Knock Noise at Idle#

2015-2023 Ford Mustang: MT82 Manual Transmission Grinding and Shifting Issues#

2015-2023 Ford Mustang: Manual Transmission Hydraulic Clutch Pedal Sticks to the Floor#

2015-2017 Ford Mustang: Door Latch Pawl Spring Tab Failure (Recall 16S30)#

2015-2018 Ford Mustang: EcoBoost Coolant Intrusion into Cylinders#

2015-2023 Ford Mustang: Backup Camera Intermittent Failure and Black Screen#

2015-2023 Ford Mustang: Brake Pedal Bumper Failure Causing Limp Mode and Battery Drain#

2015-2020 Ford Mustang: SYNC 3 Infotainment Freezing/Black Screen#

2015-2023 Ford Mustang: HVAC Blend Door Actuator Failure#

2015-2021 Ford Mustang: P0430 — Bank 2 Catalytic Converter Efficiency Loss (Driver-Side Cat, TSB 19-2201)#

2015-2021 Ford Mustang: P0420 — Bank 1 Catalytic Converter Efficiency Loss (Passenger-Side Cat / Downstream O2 Sensor)#

2015-2023 Ford Mustang: P0442 — Small EVAP Leak from Failing Canister Purge Valve (Recurring Revised Part)#

2015-2023 Ford Mustang: Independent Rear Suspension Clunk and Noise Over Bumps#

2015-2023 Ford Mustang: Brake Booster Hissing/Failure (Track-Driven)#