I have a 2003 dodge stratus sxt coupe 2 door. There is a bad rattle in the front passenger side. I got the car from my nephew and he thought it was the sway links that needed replaced, so i replaced them but person that put them on said it was the control arm, replaced that, still making the rattling sound. So our next guess was the strut needs replaced... When it gets to freezing temperatures out it is like something freezes and it is a very rough ride. Every little wave you hit in the road it pops really loud like something is hitting the hood, but its not... I am at a lost... Could it be the bushing that needs replaced???? Also when ever I run my heat or air I have a belt squealing. What belt do I need to replace?

 

The pop and rough idle sounds like coil packs or spark plugs. Check engine light would come on though.