It doesn't give you a right to. If you purchased "as is" in particular, you get what you get and don't have any claim of any nature. If there were gaurantees as to how it would work, you must give them the right to fix it. It not working doesn't cancel or give you the right to cancel the deal.
they're broken..
it shouldnt.
Cylinder miss, broken motor mount, or vacuum leak.
If you are talking about a water leak from the a/c then check the drain and make sure that it has not fallen off or that its not clogged up or cracked and if its okay then check the case to make sure that it is not broken............
Check the oil level in the car.
check your fuses first
You should check to see if another car is following close behind you. If you stop unexpectedly, the other car might crash into you.
When your car warranty has expired the best place to check to purchase one would be at https://www.warrantydirect.com/.
Yes, Any car needs to be broken in. Check your cars manual for specific break in parameters
the car will run rough, and the check engine light will be on. and depending on the car, it could possibly not run at all
Broken fan belt? Seized water pump?
Not just one. It will still start but will miss.