P0303 on FORD FUSION
What P0303 Means on Your FORD FUSION
Real FORD FUSION Owner Reports (Source: NHTSA Complaints Database)
"I had coolant leaking in my 2013 Ford Fusion SE 1.6L causing a misfire in cylinder 3 from diagnostics code P0303."
"April 2019 while traveling on the highway check engine and dash lights flashed along with vehicle overheating message. had to pull over on the shoulder and call for a tow to the purchasing dealership. water pump was replaced and cooling system checked."
"The engine (1.5L EcoBoost) has suffered a failure due to coolant intrusion into cylinder 3, which has led to repeated engine misfires. Trouble codes P0303 (misfire cylinder 3) and P0316 (misfire on startup) were found."
"Coolant is leaking into cylinder 3 of the engine causing a misfiring and code P0303 to present itself. White exhaust is seen when the vehicle is turned on. Lots of vibrations present and the check engine light stays on."
"Check engine light, Code P0303. #3 cylinder misfire. Coolant leaking into cylinders 2 & 3 due to faulty casting of the short block. This was a known defect of 2015 Ford Fusion 1.5 liter EcoBoost engine by Ford Motor Co. No recall was issued. I was not notified of this defect until it happened."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P0303 on FORD FUSION
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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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.
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3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.