2019 Ford Fusion Problems: 2 Issues Every Owner Should Know

2019 model year · 3,290+ owner reports · Updated May 2026

According to Au7o's analysis of 3,290+ owner reports, the 2019 Ford Fusion has 2 documented known issues, with 2 rated critical. The most serious are 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure ($0-$7,000 repair) and Hybrid High-Voltage Battery Degradation and Failure ($1,500-$7,000 repair). The most commonly reported issue is 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure with 1,890 owner reports. Across all issues, repair costs range from $1,500 to $7,000. DIY maintenance guides at au7o.io.

All 2 Known Issues

Community Reported

1,890 owners

On the 2014-2019 Ford Fusion 1.5L EcoBoost, the 1.5L EcoBoost in 2014-2019 Ford Fusion is affected by the same open-deck cylinder block design defect as the Escape. Coolant leaks internally from the block passages into the combustion chambers due to insufficient sealing surface and porous block material that cannot maintain coolant pressure over time. Ford extended warranty coverage to 7 years/84,000 miles for short block replacement per TSB 19-2139 and TSB 19-2375. A consolidated class action lawsuit covers 2013-2019 Fusion and Escape with 1.5L, 1.6L, and 2.0L EcoBoost engines. Some owners have experienced engine failure with no warning - no check engine light before coolant hydrolocked the cylinder.

This issue also affects: Volkswagen Eurovan, Audi A4 allroad, Audi Q5

Common Symptoms

White or gray smoke from exhaust, especially on cold starts
Engine misfires with P0300-P0303 codes (1.5L is 3 cylinders in newer versions; earlier is 4-cyl)
Coolant level dropping without visible external leak
Sweet smell from exhaust
Coolant reservoir bubbling or pressurizing excessively
Engine overheating
Rough idle that clears up as engine warms
No warning light in some cases before engine fails

How to Fix

Ford TSBs 19-2139 and 19-2375 cover short block and head gasket replacement under extended warranty (7 years/84,000 miles from warranty start date). Verify coverage at fordowner.com or call Ford Customer Relations 1-800-392-3673. Class action lawsuit for out-of-warranty reimbursement: lieffcabraser.com/defect/ford-coolant. Post-repair: Ford recommends monitoring coolant level and using only Motorcraft Orange coolant (VC-3-B).

What Owners Are Using

Parts and tips from 1,890+ owners who fixed this issue

NoteFord's 7yr/84k extended warranty for the 1.5L EcoBoost short block is YOUR money - call 1-800-392-3673 and reference TSBs 19-2139/19-2375 before authorizing any repair. Do not let dealers deny coverage without escalating. FusionEnergiForum has documented hundreds of successful warranty claims.
NoteUnlike most engine problems that show warning lights first, this failure can destroy your engine without a CEL. Some owners report zero warning signs before a hard start, white smoke, then engine death. Check coolant level monthly on any 2014-2019 Fusion 1.5L EcoBoost.
TipIf your dealer claims they cannot replicate the problem or denies the extended warranty, escalate to Ford Customer Relations and request a "Technical Assistance Request." Reference TSB 19-2139. The FTC investigated Ford's concealment of this defect - dealers are obligated to honor the extended warranty.
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Typical repair cost:$0 - $7,000

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1,890+ owners have reported this issue

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Community Reported

High Confidence1,890 reportsLast reported by owners Nov 2025Reviewed Feb 2026

Community Reported

1,400 owners

On the 2010-2020 Ford Fusion, ford Fusion Hybrid spans two generations with different high-voltage batteries — degradation patterns differ. 1st-gen 2010-2012 (NiMH, ~1.4 kWh): typical degradation appears at 100,000-150,000 miles with reduced EV-mode range and increased ICE intervention. Replacement runs $2,500-$4,000 at independent hybrid specialists. 2nd-gen 2013-2020 (Lithium-ion, ~1.4 kWh): better thermal management has led to longer life on average but cell imbalance issues appear at 150,000+ miles. 'Stop Safely Now' warnings often precede full failure. 2013-2020 Energi PHEV variants share the architecture but with larger 7.6 kWh batteries — separate degradation curve. Owners should check cell balance via OBD-II scanner with hybrid module support (Forscan recommended).

This issue also affects: Chevrolet Bolt EV, Ford C-Max, Ford Mustang Mach-E

Common Symptoms

Reduced electric-only driving range
Decreased fuel economy (gradual decline)
"Check Hybrid System" warning on dashboard
Slower-than-normal acceleration or power loss
Battery charge indicator drops faster than normal
Unusual noise from battery compartment area
Vehicle fails to start (complete battery failure)
Hybrid system shuts down and runs on gasoline only

How to Fix

Check warranty first - Ford covers 8yr/100k miles (10yr/150k in CA, CT, MA, ME, MD, NJ, NY, OR, PA, RI, VT, WA states). If out of warranty, aftermarket/remanufactured battery packs from GreenTecAuto ($1,550-2,950 installed) are significantly cheaper than dealer replacement ($4,000-7,000). Individual cell replacement at specialized hybrid shops ($800-2,000) is an option if only specific cells have failed. Battery reconditioning is a temporary fix that may restore 60-80% of capacity for $300-800.

What Owners Are Using

Parts and tips from 1,400+ owners who fixed this issue

TipGreenTecAuto and BestHybridBatteries offer remanufactured Fusion Hybrid battery packs at $1,550-2,950, roughly half the dealer cost. These come with 3-5 year warranties. They also offer mobile installation in many areas.
NoteFord hybrid battery warranty is 8yr/100k (10yr/150k in CARB states). Check your state emissions warranty laws - you may have more coverage than you think. A "Check Hybrid System" warning within the warranty period should be a no-cost dealer repair.
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Typical repair cost:$1,500 - $7,000

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1,400+ owners have reported this issue

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Community Reported

Medium Confidence1,400 reportsLast reported by owners Feb 2026Reviewed Feb 2026

Frequently Asked Questions

What are the most common Ford Fusion problems?

According to Au7o's analysis of 3,290+ owner reports, the 2019-2019 Ford Fusion has 2 documented issues. The most frequently reported are: 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure, Hybrid High-Voltage Battery Degradation and Failure. Of these, 2 are rated critical and should be addressed promptly.

Is the Ford Fusion reliable?

The 2019-2019 Ford Fusion has 2 known issues documented across 3,290+ owner reports. 2 issues are rated critical: 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure and Hybrid High-Voltage Battery Degradation and Failure. 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 Fusion problems?

Repair costs for known Ford Fusion issues range from $0 to $7,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure, typically costs $0-$7,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2014-2019 Ford Fusion 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure?

The 1.5L EcoBoost in 2014-2019 Ford Fusion is affected by the same open-deck cylinder block design defect as the Escape. Coolant leaks internally from the block passages into the combustion chambers due to insufficient sealing surface and porous block material that cannot maintai… Repairs typically run $0-$7,000. Severity: high.

What is the 2010-2020 Ford Fusion Hybrid High-Voltage Battery Degradation and Failure?

Ford Fusion Hybrid spans two generations with different high-voltage batteries — degradation patterns differ. 1st-gen 2010-2012 (NiMH, ~1.4 kWh): typical degradation appears at 100,000-150,000 miles with reduced EV-mode range and increased ICE intervention. Replacement runs $2,50… Repairs typically run $1,500-$7,000. Severity: high.

2019 Ford Fusion Problems: 2 Issues Every Owner Should Know

All 2 Known Issues

2014-2019 Ford Fusion: 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2010-2020 Ford Fusion: Hybrid High-Voltage Battery Degradation and Failure#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

Other Ford Models

Frequently Asked Questions

What are the most common Ford Fusion problems?

Is the Ford Fusion reliable?

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

What is the 2014-2019 Ford Fusion 1.5L EcoBoost Coolant Intrusion into Cylinders - Internal Engine Block Failure?

What is the 2010-2020 Ford Fusion Hybrid High-Voltage Battery Degradation and Failure?