I am looking at purchasing a Ford Explorer (2000 or better) and I have been told by my trusted mechanic that the 4.0-Liter V6 SOHC engine has more problems than the 4.0-Liter V6 engine. I have found a 2002 Explorer that I am interested in buying and it has the SOHC engine and I'm wondering if I should throw caution to the wind and buy it.