Need your advice
My car starts fine but there is a high pitched whining that comes from under the hood when accelerating. Runs good until I get out on the road then it seems to lose power and not want to go, jerks a lot. If I rev it up it will start working again until I have to shift then it goes back to feeling like there is no power. I've heard that noise before in a different car and as I remember it was the fuel pump. I am a 60 year old single woman on a very limited income and don't want to get ripped off or pay too much. What is your advice as to what it could be and cost? I just got ripped off with a new radiator so am a little leery of mechanics.