P0304 on FORD EDGE
What P0304 Means on Your FORD EDGE
Real FORD EDGE Owner Reports (Source: NHTSA Complaints Database)
"coolant intrusion in cylinders on the engine 2.7 ecoboost Ford made a bad engineering decision on the headers and block to allow coolant to flow through the gaskets to get to the other side of the cylinder."
"I bought my 2016 Ford Edge on May 30, 2025. Six weeks later it started with engine light coming on with code P0304, misfire in cylinder 4. Than white smoke from exhaust only at first morning startup."
"Check engine light was on and took to ford dealership and code is P0304. Coolant is leaking internally into cylinder."
"My 2016 Ford Edge equipped with a 2.0L EcoBoost engine had coolant leak into the engine cylinders and my check engine light came on. Upon contacting Ford, they said it happens and I should be fine to take a 1,046-mile road trip to Colorado and back home."
"The contact owns a 2016 Ford Edge. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The contact stated that he used a code reader to diagnose the vehicle and retrieved code: P0304."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P0304 on FORD EDGE
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.