I have an "02 Accord, 2.3L with 5 speed and experiencing loss of engine power. Once the car reaches speed and goes up any incline it slows down. Also the engine sounds louder in the first three gears and it makes a hissing sound for the lack of a better term. Any ideas?

 

First check for any stored codes.

 

maybe do a compression test?

 

I'll try those first. Thanks!