In the short time its been since I've joined this site its been great!
One thing I've noticed is that there are a lot of questions where the user neglects to specify their vehicle, wherein another user must ask them the make/model/year of their vehicle before they can begin to give an answer/diagnose the problem.
If there was a field to specify your vehicle (somewhere next to the title), I think it would leave a lot of that back and forth out.
It probably shouldn't be mandatory, but I predict that it will increase the accuracy and response times of answers on this site.
Forgive me if this is outside of the realm of suggestions that can be implemented.