Knowing your vehicle can become beneficial in emergencies. If you are ever in a situation where you want to repair something quickly or change a component, there is nothing more cost-effective than a ...

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 ...

A mechanic who was doing a repair on a Dodge Ram found an unexpected problem that caused a whole new level of alarm for him. The video documenting the situation comes from Dave’s Auto Center ...

Cooled-EGR (Exhaust Gas Recirculation) systems have been used since October 2002 by five major engine manufacturers (Cummins, Detroit Diesel, International, Mack and Volvo) to reduce emissions of smog ...

Q: I have a 1990 Toyota Corolla LE, with automatic transmission, which I purchased new. It now has 101,000 miles on it. In all the years I’ve had it, there was never a major problem. All the service ...

Beginning in October, the exhaust from newly manufactured diesel engines must produce half the oxides of nitrogen (NOx) of engines produced today with no increase in particulate matter (PM). This is ...

Controlling vehicle emissions in modern vehicles involves more than just bolting up a catalytic converter and calling it a day. There are other components that effectively, and intuitively, cut out ...

Your engine’s manifold absolute pressure (MAP) sensor is your little buddy. Buried somewhere in the stream of your charged intake air (usually in the manifold), it employs a little ceramic or silicone ...

While most of the early problems have been engineered out of the exhaust gas recirculation systems on today’s clean diesel engines, corroded coolers, stuck valves and other problems still plague ...

The Exhaust Gas Recirculation (EGR) valve sends some of the exhaust gas back into the cylinders to reduce combustion temperature. This is required because nitrous oxides (nasty pollutants) form when ...

I own a 2013 Audi A6 diesel, which for the past six weeks has sporadically gone into limp home mode with the engine management light flashing. Each time, restarting the car has cleared the fault and ...