When am driving normaly say for instance up a hill and i go to speed up slowly, the car acts like it is struggling and it feels like a loss of power. I've already cleaned the injectors, throtle body, new plugs and wires, and fuel filter. Could it be the fuel pump or maybe is it susposed to be like that?

 

It might be a transmission issue, not downshifting properly and shifting into Overdrive too soon.

I had an oldsmobile that felt like it bogged down often. My first instinct was it wasn't getting fuel properly. However, it ended up it was shifting into OD too soon, and wasn't downshifting properly. Try driving in D and shifting into OD once you get 55+mph

 

Yup i already do that at around 45. The problem here is around 35 mph. Is there anything else i can do to help this other than changing the gears in the rear end?

 

does it do it on a flat road...or is it only on hills

 

Vaccum leak. You've replaced all the other basics, listen to it when you accelerate...sometimes it will whistle or hiss, but at other times it can hide itself...

edit-- read up on this:

http://www.aa1car.com/library/vacleak.htm

 

Ah, sounds identical to my provous problem. Is your computer throwing any codes? Get it checked at an Autozone or Advanced Auto Parts. I kept getting a P0300 code, which is random cylinder misfire. My plug wires had gone up the wazoo, and after getting them replaced (about a 20 minute job), it worked better than ever. I suggest you have it checked. I understand the sound it makes. It's a terible sound even on the slightest grade of a hill, even on the slighest amount of load.

 

No codes are being thrown. The last code that was given was for a bad O2 sensor. i replaced that. I might try some sea foam and see if that helps.