If you encountered this code in a specific context (like a diagnostic trouble code from a scan tool), please provide more information, such as:
* The vehicle's year, make, and model: This helps narrow down possibilities.
* Where you saw the code: Was it on a sticker under the hood, a repair order, a scan tool readout, etc.?
* The entire code, if applicable: Sometimes codes are longer than three digits.
With more details, it might be possible to figure out what "177" refers to in your specific situation. It's likely not a standard Ford engine code itself.