Q The gas cover door on my wife’s Toyota Camry won’t open when she pulls up on the latch. Now I have to accompany her every time she needs gas, because it takes two people to open that door – one to ...

What happens if my gas cap is left off? Why does it cause the check engine light to come on? Have I done some damage to the engine? These are very common questions, and luckily there’s an easy fix and ...