Many of us are familiar with the anxiety that accompanies the dreaded clicking sound when we turn the key and the car doesn’t start. It means we’re not going anywhere without facing a bit of a hassle.

Q. I have taken my 2012 Toyota RAV4 to several mechanics over the past several months. My car, upon acceleration, makes a “grinding” noise between 35-40 mph, it goes away when I take my foot off the ...