P0303 on FORD EDGE — Cylinder 3 Misfire Detected

Q: "What does P0303 mean on a FORD EDGE?"

"P0303 indicates: Cylinder 3 Misfire Detected. This is a ignition system code. 32 FORD EDGE owners have reported this to NHTSA."

Q: "What are the most common causes of P0303 on FORD EDGE?"

"Based on 32 NHTSA reports, the most commonly cited components are: Engine, Power Train,Engine, Engine And Engine Cooling,Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0303 serious on my FORD EDGE?"

"Of 32 NHTSA reports for this code on FORD EDGE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my FORD EDGE shows P0303?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0303 Means on Your FORD EDGE

P0303 is a diagnostic trouble code indicating: Cylinder 3 Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

32 FORD EDGE owners have reported this issue to NHTSA across model years 2016-2018. Most reports come from the 2017, 2018 model years. The most commonly reported component is Engine (87.5% of reports).

Real FORD EDGE Owner Reports

Source: NHTSA Complaints Database

"Coolant leaking in cylinders, white exhaust smoke, rough idle, coolant smell, diagnostic trouble code P0303 due to misfire. Safety hazard due to risk of engine failure or engine fire."

— 2016 FORD EDGE owner · ENGINE · Filed 04/19/2023

"Car has over 89000 miles and maintained regularly. I am the only owner and kept in garage. Check engine light came on which had a code of P0302, P0303, P0304. Mechanic confirmed coolant has leaked into cylinder and has caused crack with his borescope. Only fix is an entire engine replacement."

— 2016 FORD EDGE owner · ENGINE · Filed 07/29/2022

"My check engine light came on, checked vehicle with code reader and code p0303 & p0316 showed. when vehicle started when cold, it would chug and stall out at times. vehicle was brought to dealership. they found coolant was getting into the #3 cylinder. therefore requiring a new long block."

— 2016 FORD EDGE owner · ENGINE · Filed 10/26/2020

"Bought my car used with 100000 miles. Was maintained of every 3000 miles by a ford dealer before i bought it. When i got it and as i was driving home there was a check engine light that popped up for a misfire in cylinder 3 (p0303) and no coolant in the reservoir."

— 2017 FORD EDGE owner · ENGINE · Filed 10/11/2025

"March 9, 2025 Big O installed 4 new tires on my 2017 Ford Edge w/Eco boost engine. March 22, 2025 engine light came on while driving. Because I just had it at Big O, I took it back to them to check. March 24, 2025 Big O diagnosed my car when code P0303 came on."

— 2017 FORD EDGE owner · ENGINE · Filed 03/22/2025

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

3

'16

16

'17

13

'18

Common Causes on FORD EDGE

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 87.5%

POWER TRAIN,ENGINE 6.2%

ENGINE and ENGINE COOLING,ENGINE 3.1%

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 3.1%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0303 mean on a FORD EDGE? ▾

P0303 indicates: Cylinder 3 Misfire Detected. This is a ignition system code. 32 FORD EDGE owners have reported this to NHTSA.

What are the most common causes of P0303 on FORD EDGE? ▾

Based on 32 NHTSA reports, the most commonly cited components are: Engine, Power Train,Engine, Engine And Engine Cooling,Engine. These percentages are based on the component field in owner complaints.

Is P0303 serious on my FORD EDGE? ▾

Of 32 NHTSA reports for this code on FORD EDGE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my FORD EDGE shows P0303? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.