alexander_sky92
Ford Escape Defective Lambda Sensor
Summary of the thread
A 2023 Ford Escape with a gasoline engine is experiencing a check engine light, rough running, and a strong exhaust smell, indicating a potential issue with the lambda sensor. The symptoms suggest that the lambda sensor might be defective, which can cause these problems. After taking the vehicle to a workshop, the lambda sensor was confirmed to be the issue and was replaced, resolving the problem and restoring the vehicle's performance.
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4 comment(s)
alexander_sky92 (community.author)
Power seems normal, but the exhaust smell is strong all the time, especially when the engine is cold. I haven't had any exhaust work done recently. Lambda sensor defective, could that be it?
moritzloewe1
A constant strong exhaust smell points away from particulate filter issues, I think. Defective lambda sensor is a strong possibility given your symptoms. Get it checked by a workshop, could be an expensive fix. Expect to pay around 375€.
alexander_sky92 (community.author)
Thanks for the insights! Took it to the shop, and you were spot on – defective lambda sensor. Replaced it for 375€. Runs like new!
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FORD
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ESCAPE
moritzloewe1
Rough running and exhaust leak with a check engine light could be a few things. Have you noticed any loss of power? Is the smell constant or intermittent? It's probably not a simple fix. You should check the lambda, EGR and NOx sensors. Any recent work done on the exhaust system?