Why is the Ford Fiesta losing power on inclines?

My Ford Fiesta seems to lose power when I'm driving uphill. It runs fine on flat roads, but as soon as I hit an incline, it struggles and I have to downshift. What could be causing this issue?

It could be a problem with your fuel filter or fuel pump. If they are clogged or failing, they may not be able to supply enough fuel to the engine when going uphill.

Your spark plugs or ignition coils could be the culprit. They may not be functioning properly, causing a loss of power when trying to accelerate on an incline.

Have you checked your air filter? A clogged air filter could restrict air flow to the engine, leading to a loss of power.