Although there were a lot of issues associated with earlier models of the exhaust gas recirculation system otherwise know as EGR, which are found in most current “clean” diesel engines, the majority of these issues are no longer a problem. However, there are still a few things one must still look for when it comes to properly maintaining an EGR system, like making sure the coolers aren’t corroded and the valves aren’t stuck.
Since there’s not a lot one can do when it comes to scheduling preventive truck maintenance for this particular type of EGR system, it’s necessary to be on the lookout for any signs that the system isn’t performing as it should. Roy Horton is a product manager who tells us, “Adhering to a regular maintenance schedule and addressing issues as they arise are vital for preventing damage to the vehicle.”
Exhaust Gas Recirculation Systems
It’s important for every fleet to monitor EGR coolers and their consumption, making sure to take notes on how much they’re adding, if any, to a particular truck on a regular basis. Earlier versions of EGR coolers were viewed as a truck part that once failed, would simply need to be fixed or replaced. Nowadays, truck repair specialists are finding out that they can look for a few clues that can help a cooler last longer, with white residue being the main one.
John Moore, a product manager at Volvo Trucks, tells us that there are many less EGR system failures these days due to updated changes in the materials used to make the system, as well as the overall design. He adds, “Exhaust gas recirculation in diesel engines reintroduces exhaust soot that not only can corrode valves and coolers when condensation occurs, but can also make them stick open or closed due to excessive buildup of gummy deposits.”
Best Truck Maintenance Procedures for EGR Engines
The fact that these failures are not as common these days due to the updated designer EGR system simply means that there’s not going to be as much corrosion and/or deposit buildup. And in order to avoid unnecessary truck repair, it’s essential for a truck driver to keep close watch on any changes in the oil consumption, coolant levels, miles per gallon and overall truck performance.
Even though the ability for truck repair specialists to repair vs. replace an EGR system is now available, it’s still essential for truck drivers to pay very close attention to any and all indications that something isn’t quite right. This is the best way for them to avoid unnecessary and what can be a very costly truck repair.
It’s highly recommended for truck drivers to follow the recommended truck maintenance schedule for their particular heavy duty truck in order to make sure the exhaust gas recirculation system is working properly.
