Check Engine Light On

Expert diagnosis and repair solutions for 2015 Ford F-150 Check Engine Light On. Get step-by-step fixes, cost estimates, and professional advice.

Expert Repair Solutions

medium$800-$1200

Replace the catalytic converter if diagnostic trouble code P0420 or P0430 is present.

Source: https://www.youtube.com/watch?v=nqq8rYqxAiQ

Obtain a diagnostic scan to confirm the presence of P0420 or P0430 codes.
Purchase a compatible catalytic converter for the 2015 Ford F-150.
Remove the old catalytic converter by unbolting it from the exhaust system.
Install the new catalytic converter and ensure all connections are secure.
Clear the diagnostic trouble codes and test drive the vehicle to ensure the check engine light does not return.

easy$10-$20

Inspect and replace the gas cap if it is loose or damaged.

Source: https://www.diychatroom.com/threads/2015-ford-f150-xlt-check-engine-light-dealer-wants-1k-to-repair.745941/page-2

Check the gas cap for any signs of damage or looseness.
If damaged, purchase a new gas cap compatible with the 2015 Ford F-150.
Install the new gas cap by screwing it onto the fuel tank filler neck until it clicks.
Start the vehicle and check if the check engine light has turned off.

medium$150-$300

Replace the oxygen sensor if it is faulty, causing the check engine light to illuminate.

Source: https://www.fordofwestmemphis.com/blogs/3282/ford-of-west-memphis-service/the-ford-check-engine-light-common-causes-codes-and-issues/

Use an OBD-II scanner to identify if an oxygen sensor-related code is present.
Locate the faulty oxygen sensor on the exhaust system.
Disconnect the electrical connector and remove the sensor using an oxygen sensor socket.
Install the new oxygen sensor and reconnect the electrical connector.
Clear any diagnostic trouble codes and verify that the check engine light is off.

mediumFree under recall

Address engine block heater cable issues as per recall 18V894000.

Source: NHTSA Recall Information

Contact a Ford dealer to verify if the vehicle is affected by recall 18V894000.
Schedule an appointment with the dealer for the recall service.
The dealer will disable the block heater cable and replace it when parts are available.
Ensure the recall repair is documented and the check engine light issue is resolved.

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