Installed water pump and thermostat now car idles fast and tries to die when you stop also sounds rough when idling. Could i have the timing off? It didn't sound this way before,although it would idle rough at stop lights but never die.The only time it did was when it over heated and it shut itself down.

Turns of the key for it to start

When I switch from park to drive, it revs up like I am in park, my car moves a little bit when I do it but I do not want to blow up my engine, what could it be?

In neutral its just a little vibration , but when in drive it shakes pretty bad , thr motor mounts look ok amd intact , there is a hissing sound coming from underneath , could this be a small vacuum leak and that is the reason for shaking?

I have pictures

Dealer I bought it from years ago said the bushings were bad on it, but I feel like there could be more than that (dealer was kinda... scummy). Has gotten worse over the years (haven't been able to afford a repair yet, but I may soon).

Leaking coolant from coolant tank hoses which is connected to radiator surge tank, of low coolant tank connector need to replace how do you do it, need help suggestions anyone