No audio 3.5, audio from line out, only left ear from 3.5 while docked

Hi,

I bought a second hand iPod 5.5 that someone left taking dust in a drawer. Everything is fine with it except the headphone jack that doesn’t work. I get a clipping sound only in the left earphone and nothing from the right earphone.

I own an Apple iPod dock and the line out connection works! But I still get a clipping sound from times in the left earphone. While docked, I tried the 3.5mm jack and sounds only comes from the left side when I put some angle into it.

I also own a Classic 80gb and I can ear the clipping sound at the beginning of a song, I guess that’s the HDD loading, maybe the 5.5’s HDD is loading alot and the sounds comes from that?

Sorry if the question was asked, I couldn’t find any solution except replacing the 3.5mm.

Thanks!