Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to ...

The most common culprit is carbon buildup on the throttle body, exhaust gas recirculation (EGR) valve and idle air control (IAC) valve. Here well show you how to clean an EGR valve. This simple ...

EGR valves run hot and require cooling ... “Five weeks later and I am still in a hire car, which was a battle to get. I am getting no updates from BMW or the dealership on how much longer ...