Multiple Problem List With Mazda 3
 

Hello mazda 3 owners, I have been having these problems with my 2005 mazda 3 2.3s hatchback with 160k on it. Here we go...
1. Third Gear Shift Vibration
So what happens is when the car is cold as I shift into third no vibrating occurs in the knob, but after 15 minutes or so, the vibrations start to occur. It wonder if it could be the syncros in the transmission that are worn?

2. Rough Idle Occuring While Car Is Slowing Down with Clutch Engaged
When the car is slowing down with my clutch in my revs jump up and down between 500-1000 as if it is going to stall, but when i stop the car completely the revs stabilize to normal. Whats going on? EGR valve or MAF sensor, i dont know exactly what to check. So it would be nice if someone could give me suggestions on what I should be inspecting?

3. While im turning right, I hear a scraping noise coming from the front right wheel well as if something is touching...could it just be snow since i drive in the winter?

4. Im noticing a lot of engine vibrations especially after hitting bumps on the road, it is felt like an after-vibration occuring. Suspecting motor mounts that are blown? I saw a crack in the plastic so Im guessing its broken then...

5. The ride quality is somewhat bouncy, and when I accelerate over a bump, MASSIVE wheel hop occurs, so could it also be due to motor mounts/shocks?

A problematic car, but at least its fun to drive and it works :) My entire family owns Mazdas :) (CX9, RX8)