Ford Mustang Trouble Codes, Symptoms & Recalls
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Common check engine codes on the Ford Mustang
- P0420 — Catalyst System Efficiency Below Threshold (Bank 1)
- P0300 — Random/Multiple Cylinder Misfire Detected
- P0171 — System Too Lean (Bank 1)
- P0442 — Evaporative Emission System Small Leak Detected
- P0455 — Evaporative Emission System Large Leak Detected
- P0128 — Coolant Temperature Below Thermostat Regulating Temperature
- P0401 — EGR Insufficient Flow Detected
- P0440 — Evaporative Emission Control System Malfunction
- P0301 — Cylinder 1 Misfire Detected
- P0174 — System Too Lean (Bank 2)
Common Ford Mustang symptoms
- Ford Mustang car shaking when braking
- Ford Mustang brakes squealing when stopping
- Ford Mustang check engine light on
- Ford Mustang car won't start
- Ford Mustang car overheating
- Ford Mustang car loses power when accelerating
- Ford Mustang car running or idling rough
- Ford Mustang white smoke from exhaust
- Ford Mustang blue smoke from exhaust
- Ford Mustang battery light on while driving
- Ford Mustang car pulls to one side
- Ford Mustang car ac not blowing cold
Maintenance & recalls
Ford Mustang maintenance resources · Ford Mustang NHTSA recalls & complaints