Car loses power accelerating and uphill?

2010 HYUNDAI ATOS
275,550 MILES • 1.1L • 2WD • MANUAL
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CHARMAIN CHERRY
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I bought the car a month ago. I changed the oil filter, spark plugs and air filter, but couldn't get the fuel filter off.

The car doesn't smoke. It doesn't leak oil, although I haven't checked again if it uses oil.

It starts fine. Reverses fine and accelerates well for the most part. It struggles terribly uphill if I don't have forward momentum.

It sometimes struggles with power in the lower gears when accelerating as well.

What could the cause be for the lack of power?
Jul 19, 2023 at 4:57 PM
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STRAILER
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I clogged fuel filter would be #1 thing I would try first, here are the instructions on how to change it out and I have included a guide you can go over as well. Please check the air filter as well.

https://www.2carpros.com/articles/engine-has-low-power-output

Check out the images (below). Please let us know how it goes.



Jul 20, 2023 at 2:07 PM