The P0300 random misfire code in your 2013 Ford Escape, when accompanied by coolant loss without external leaks, suggests the serious problem of coolant entering the combustion chambers. This is particularly significant on the 2013 Escape's 1.6L EcoBoost engine, which has a documented history of cylinder head issues leading to coolant intrusion.
Understanding This Issue in the 2013 Escape
The 2013 Escape with the 1.6L EcoBoost engine was subject to safety recall 17S32 for cylinder head cracking and coolant leaks that could cause engine fires. Coolant leaking into cylinders creates misfires because liquid coolant doesn't compress like air-fuel mixture. The P0300 code indicates multiple cylinders are affected, often due to coolant pooling in cylinders during engine-off periods.
Recognizing the Symptoms
Key symptoms include white smoke from exhaust (especially at startup), sweet smell from exhaust, gradual coolant loss without visible external leaks, misfires worse at cold startup that improve as engine warms, overheating tendencies, and milky residue on oil cap. The combination of P0300 with any coolant-related symptoms on this engine requires immediate attention.
Diagnostic Process
Check coolant level and note any consumption. Inspect oil for signs of coolant contamination (milky appearance). Perform a cooling system pressure test—pressure drop without visible leaks suggests internal leakage. A combustion gas test detects exhaust gases in the cooling system. Check spark plugs for signs of coolant fouling (crystalline deposits). Consider a cylinder leak-down test to identify which cylinder has the breach.
Critical Repair Information
Due to the safety recall, have your VIN checked at a Ford dealer for recall eligibility. The recall addresses cylinder head replacement for affected vehicles. If not covered, repair requires cylinder head removal and either machining or replacement. Do not continue driving if significant coolant loss is occurring—this can lead to engine fire risk or complete engine failure from overheating.