There are a few things you should be looking for if you think you have a bad EGR valve. Engine performance issues, a rough idle and check engine light are a few to look for.
We've often heard that hitting higher fuel economy targets (like, say, the 54.5 miles per gallon CAFE requirement for 2025 in the US) will need not a silver bullet but something more like silver buckshot. In other words, the industry is going to try lots of different ways to make cars burn less fuel as they drive down the road.
Navistar International's not beating 'em, so it looks like it's going to join 'em. The truckmaker, which has been pushing its exhaust-gas recirculation process as a cheaper, simpler emissions-treatment method than the selective catalytic reduction method used by its competitors, will likely switch to SCR to better appease the Environmental Protection Agency, the Wall Street Journal reported, citing people familiar with the process that weren't identified.
While the search for alternatives to the internal combustion engine continues at labs across the world, work hasn't stopped on those traditional powerplants. Auto parts supplier Ricardo, for example, had just announced its HyBoost project, which aims to reduce the CO2 emissions of a " cost-effective, ultra-efficient gasoline engine in a C-segment passenger car" by something like 30-40 percent. That's pretty impressive, and will take not only Ricardo's resources but also that of the co
Most people probably don't know the name PACCAR but they've surely seen Peterbilt, Kenworth and DAF. Those are three of the biggest medium and heavy duty truck brands on the market . The smoky exhaust from those big diesel trucks has surely annoyed most drivers and pedestrians at some point in time. PACCAR produces trucks under those brands and others that are used around the world. The company has announced plans to meet 2010 diesel emissions requirements by adding exhaust gas recirculation (EG
General Motors has announced its Medium Duty Truck lineup for the 2007i (the i stands for interim) and 2008 model years feature increased performance, increased driver comfort and reduced diesel emissions. Included are an all-new Chevrolet and GMC W-Series, as well as revised diesel engines and exhaust systems to ensure GM medium-duty trucks meet new, more stringent federal and state of California diesel as emissions standards.