Oh yeah, I did wipe the magnets, new strainer,and thoroughly cleaned out the pan. The throttle linkage is good, i think. It's spring is firm, doesn't get stuck. Mounts may not be good. My car vibrates a lot more than a typical Camry at a red light. Also i hear this weird rumbling noise whenever im in a certain rpm range in 1st, 2nd,3rd. I think it originates from the cat. Pipe or something is rattling

. I know that the car did receive a welding job somewhere in the exhaust system ( cat i think). Non flex matarial stuff welding onto flex pipe? What's an accumulator?