Recently it's been cold here in philadelphia. the car has about 96k miles on it. The car has been having trouble starting. It takes a couple turn to actually getting it to start but when it does, there is a rough idle and the engine is shaking. When I actually tried to give it a little gas, the car completely dies. Anyone experienced this issue before? Could it be the air filter or the spark plugs? sorry I am new here and don't really have much experience with cars. any help would be appreciated