Some 2021 EcoSport vehicles equipped with a 1.0L EcoBoost engine may exhibit a condition where the auto start/stop system is inoperative or cruise control disabled with an illuminated powertrain malfunction (wrench) and/or brake warning indicator with diagnostic trouble code (DTC) P164C or P0504 stored in the powertrain control module (PCM). The vehicle may also exhibit an engine stall while braking aggressively from low speed with an auto start/stop indicator lamp flashing and a battery indicator lamp on with a shift to park message in the instrumental panel cluster (IPC). This may be due to the software in the PCM. To correct this condition, follow the Service procedure to reprogram the PC
full bulletin at NHTSA ↗2021 Ford Ecosport engine problems
moderate Owners of the 2021 Ford Ecosport have filed 178 NHTSA complaints about the engine, typically surfacing around 55,000 miles at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Failure mileage
Complaints
178
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2018 Ecosport | 530 |
| 2019 Ecosport | 337 |
| 2020 Ecosport | 274 |
| 2021 Ecosport (this page) | 178 |
1crash
When does it fail?
Of the 178 engine complaints filed for the 2021 Ford Ecosport, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Engine accounts for 70% of every owner complaint on file for this vehicle — the dominant problem area across 5 categories tracked.
Owners have filed 178 engine complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Some 2018-2021 EcoSport, Expedition, Navigator; 2019-2021 Ranger; 2020-2021 Escape, Corsair, Explorer, Transit; 2021 Bronco, Bronco Sport, Edge, Nautilus, F-150, Mustang; 2019-2022 Transit Connect; 2020-2022 Aviator, F-Super Duty; and 2022 Maverick vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0496, P0456, P0455, P04F0, and/or P0451. Ford has tested returned EVAP canister purge valves and found them to be fully functional. Prior to replacing the canister purge valve or other EVAP components, perform the following tests using the Ford Diagnosis and Repair System (FDRS) Scan Tool: Full System EVAP Leak Test - FDRS Location: TOOLBOX >
full bulletin at NHTSA ↗Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. This may be due to small debris causing the VCT solenoid to stick. Before attempting any component diagnosis or replacement of the VCT solenoid, refer to Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test HK11 to cycle the affected VCT solenoid 10 times to attempt to clear the debris. For claiming, use causal part 6M280 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2021 EcoSport engine problem centers on the oil pump drive belt tensioner arm, which fractures or separates, causing the belt to degrade and lose teeth. This kills oil pressure and engine function fast. Owners describe sudden stalling at highway speeds (35–75 mph), loud clunking or tapping from the engine, white exhaust smoke, and white hot temperatures. The low oil pressure warning comes on, sometimes preceded by a powertrain malfunction or reduced power code. Most failures happen between 40,000 and 85,000 miles, though some occur under 10,000.
The real headache: Ford's NHTSA Campaign 23V905000 (issued January 2024) promised Q2 2024 parts, then pushed to Q1 2025, then again. Owners report dealers receiving only 60–80 parts per week while hundreds of vehicles sit idle. Repair requires full engine and oil pump replacement (cost ~$9,000 if not under recall). Many owners have waited a year or more, financing vehicles they cannot drive. Some dealers demanded $1,400 in diagnostics before acknowledging the recall. A few owners reported that replacement engines failed within 1,000 miles, and one vehicle exhibited continuous electrical and mechanical faults after recall repair.
Additional failures include transmission slipping, brake system loss (due to vacuum pump failure), and crankshaft seizure from metal-contaminated oil. Dealership coordination has been inconsistent—some approve loaner vehicles or towing, others shift liability back to owners or refuse to expedite claims.
Same Ford Ecosport engine reports on nearby years: 2018 · 2019 · 2020
Failure modes owners describe
Oil pump drive belt tensioner failure
The oil pump drive belt tensioner arm fractures and separates from the backing plate, or the belt material degrades and loses teeth, causing loss of engine oil pressure.
When: Most commonly 40,000–85,000 miles; some failures as early as 9,657 miles
Symptoms owners cite: Low oil pressure warning light illumination; Engine stalling or sudden loss of power; Loud tapping, clunking, or knocking sounds from engine; White smoke from exhaust; Engine overheating; Reduced acceleration or inability to exceed 30–50 mph; Check engine light illumination
Repairs/costs cited: Engine and oil pump replacement required. Owners report part backorder delays of 6+ months; repair costs cited as ~$9,000 when not covered by warranty. Some dealers required diagnostic fees (~$1,400) before authorization.
Recalls/TSBs owners mention: NHTSA Campaign 23V905000 (Engine and Engine Cooling) / 23S64. Ford stated parts would be available Q2 2024, then revised to Q1 2025. Owners report multiple delays and insufficient inventory (60–80 parts/week nationwide to hundreds of affected vehicles). Some owners offered extended warranty or buyback options after long delays. Recall repair initially said to be safe-to-drive, but owners report failures continued during extended waits.
Engine failure post-recall repair
After dealership recall repair and engine replacement, replacement engines fail within 1,000 miles or vehicle exhibits new electrical and mechanical faults not present before recall service.
When: Immediately to <1,000 miles after recall engine replacement; one case at 38,457 miles
Symptoms owners cite: Check engine light blinking; Vehicle shudder, shake, or violent jerking at highway speeds; Loss of power or limp mode activation; Multiple warning lights (Full Accessory Power, transmission, oil pressure); Repeated stalling; Difficulty starting or failure to start; Battery light illumination after engine replacement
Codes mentioned: Not specified in narratives
Repairs/costs cited: Owners report major engine parts replaced during recall repair caused post-repair failures. One vehicle required cooling fan and control module replacement (not covered under recall). Another had battery issues immediately after replacement engine installation.
Recalls/TSBs owners mention: Recall repair at dealerships; subsequent failures blamed on dealer workmanship or required additional diagnostic costs. Some owners offered extended warranty coverage. One customer reported dealership (Celebrity Ford) unable to resolve repeated failures despite multiple service attempts; vehicle remains in dealer possession without ETA.
Transmission failure or slipping
Transmission fails to respond or slips during acceleration; vehicle cannot exceed 10 mph or stalls when shifting.
When: 21,485 miles (one reported case); timing correlates with engine oil pressure loss in some instances
Symptoms owners cite: Transmission fails to respond to accelerator pedal; Vehicle cannot exceed 10 mph despite pedal depression; Loud pop from engine compartment upon restart; Transmission slipping sensation while accelerating; Vehicle stalling or hesitation
Codes mentioned: Not specified in narratives
Repairs/costs cited: Transmission repaired once, then failed again within short timeframe. Owner declined second repair.
Recalls/TSBs owners mention: NHTSA Campaign 25V126000 (Power Train). Parts unavailable for repair; dealer unable to provide repair timeline. Manufacturer offered extended satisfaction warranty in one case.
Low or no oil pressure despite adequate oil level
Low oil pressure warning illuminates even after recent oil change and with verified adequate oil in crankcase. Oil pump failure inferred but not always confirmed until engine fails.
When: Throughout vehicle ownership; one case 30 days post-oil change; many 2 weeks to months before catastrophic failure
Symptoms owners cite: Low oil pressure warning light illumination; Warning light on FordPass app or dashboard; No obvious oil leaks or low fluid level; Engine runs rough or idles abnormally; May recur within minutes of oil change
Codes mentioned: Not specified in narratives
Repairs/costs cited: Owners report oil change and top-up do not resolve the issue. Root cause typically oil pump or tensioner assembly failure. Repair delayed pending recall parts.
Recalls/TSBs owners mention: Owners advised to wait for recall parts; interim support inconsistent across dealers.
Charging system fault and electrical issues post-repair
12V charging system and alternator faults, battery light illumination, and power loss reported after recall engine replacement or during engine failure sequence.
When: Can occur during initial failure (oil pressure loss phase) or immediately after replacement engine installation
Symptoms owners cite: Charge System Fault message on dashboard; Battery warning light illumination; Low system voltage warnings; Difficulty starting or no-start condition after engine replacement; Multiple electrical warning lights
Codes mentioned: Not specified in narratives
Repairs/costs cited: One owner had new battery installed before engine failure; battery light appeared after replacement engine. Some instances required alternator or electrical system diagnostics.
Recalls/TSBs owners mention: Ford service advisors acknowledged charging system faults; some offered diagnostic repair or extended warranty. Recall repair did not address underlying electrical issues.
Engine crankshaft and internal component failure
Crankshaft seizure, bearing damage from metal contamination, or other internal engine damage occurs due to loss of oil pressure or as a consequence of oil pump belt failure.
When: 58,993–82,813 miles; one case at 38,457 miles (post-recall replacement engine)
Symptoms owners cite: Engine overheating; Elevated RPMs without acceleration; Engine misfire or jerking; Abnormal grinding or tapping sounds; Check engine light blinking; Complete engine seizure
Codes mentioned: Not specified in narratives
Repairs/costs cited: Crankshaft replacement or full engine replacement required. Owners report metal contamination in oil as evidence of bearing damage. Repairs delayed due to parts backorder.
Recalls/TSBs owners mention: Engine replacement recommended under recall; parts unavailable. Buyback option mentioned in one case but not executed.
Brake system failure (loss of power braking)
Brake pedal becomes hard or fails to respond during or after engine failure event. Loss of mechanical vacuum pump due to engine oil pressure loss prevents power brake assist.
When: Concurrent with or immediately following loss of oil pressure and engine shutdown
Symptoms owners cite: Hard brake pedal; Brake failure or reduced braking response; Brake pedal depression does not slow vehicle; Squeaking noise when reversing (separate issue noted in one narrative)
Codes mentioned: Not specified in narratives
Repairs/costs cited: Brake failure secondary to vacuum pump loss; resolved once engine restored. One vehicle exhibited brake squeaking in reverse from purchase (separate issue).
Recalls/TSBs owners mention: No specific manufacturer response regarding brake failure documented; issue addressed through engine repair.
Synthesized from 178 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 11 most recent
Engine failure -- on 12/2/23 while driving the vehicle it shut off less than 2 minutes after I heard what sounded like a belt breakage on the car. The car would not start again. My safety was put at risk because I was driving on a busy street and the speed limit was 50mph. 1 day prior, the car slowed to about 40 mph or less after the engine light came on Then the wrench icon came on. I could…
While driving on the highway a “Low Engine Oil Pressure” came up on the screen repeatedly. We immediately pulled off the highway before the vehicle started becoming jerky/shaky while running. We attempted to add oil thinking that might be issue but when we went to run the car again it became harder to start up. The car was towed to a nearby mechanic shop where the diagnostic assessment came back…
The contact owns a 2021 Ford EcoSport. The contact received notification of NHTSA Campaign Number: 23V905000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact…
The contact owns a 2021 Ford EcoSport. The contact received notification of NHTSA Campaign Number: 23V905000 (ENGINE AND ENGINE COOLING) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact…
The engine died in an unexpected earlier timeframe than recall notice. I had to get vehicle towed at my expense as no offers existed for recalls yet to the nearest Ford. This means it sat longer with a dead engine and battery not in use. The battery was brand new before the engine died. After Ford installed a new engine I picked up my vehicle. I now had a new problem. The battery light came on.…
The contact owns a 2021 Ford EcoSport. The contact stated that the engine seized while driving at an undisclosed speed. The vehicle was towed to the local dealer after several months, where it was diagnosed, and it was determined that the engine needed to be replaced. The vehicle was repaired. The contact received notification of NHTSA Campaign Number: 23V905000 (Engine and Engine Cooling). Upon…
The contact owns a 2021 Ford EcoSport. The contact stated while driving 75 MPH, the vehicle stalled. There was no warning light illuminated. The contact was able to pull over to the side of the road. The vehicle was restarted but failed to exceed 30 MPH while driving. The vehicle was driven to the residence. The vehicle was then towed to the dealer, where the engine was replaced. The vehicle was…
Engine oil pump failure
The contact owns a 2021 Ford EcoSport. The contact received notification of NHTSA Campaign Number: 23V905000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool…
Oil light and check engine light came on and notification for poor oil pressure out of nowhere. Car started making weird sounds and acceleration was poor. One minute the car was fine and the next I had to tow it to the dealership to get it looked at. Over 2 months now and the issue isn’t resolved as the dealership hasn’t received the parts that they need to repair it.
Had engine trouble with your 2021 Ford Ecosport?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2021 Ford Ecosport?
It's a documented issue but not catastrophic. 178 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 68 complaints that reported odometer mileage, most engine failures cluster between 33,693 and 64,300 miles, with the median around 55,000. A quarter of owners report trouble before 33,693; a quarter make it past 64,300. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Ford/Ecosport.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.