Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...
Q–Our 1993 Chevrolet S-10 Blazer has been plagued with a recurrent carbon buildup in the EGR (exhaust gas recirculation) valve. The valve was cleaned in July 1995 and again in March 1996. In February ...