Like other types of technology, diesel parts and engines have evolved through the years. One of these diesel parts in Fredericktown, OH, diesel heat coils (also called glowplugs), used to have a slow starting process but now warm up engines nearly immediately. This one development improved diesel engines overall. Many customers likely remember the slow starts and warm-up period, but it is now a quirk of the past. Here is an overview of how glowplugs work and their improvements over the years.
Functions remain the same
The glowplug is a heating coil that warms up a diesel engine upon starting. Since diesel engines do not use spark plugs, they rely on compression to raise their temperature, which is an impossible process with a cold engine. While you would never notice a difference in normal temperatures, starting a diesel engine on cold winter days was challenging.
In older engines, the glowplug process produced what was often referred to as the “moment of silence.” This was a 20-second period between when you put in your key, turned it to the “on” position and then turned it to ignition. You would wait until a coil indicator showed up on your dash lights, and this normally took 20 seconds. That time was necessary to heat up the engine so it had the compression needed to start. Many models also required that you shift the car or truck into park and kept the brake pressed, since they could lurch forward upon ignition.
There is no longer a need to wait for a warm engine start with newer models of diesel vehicles. Now, the glowplugs heat the engine in about six to eight seconds, and that is only on the coldest days. In most cases, you start the vehicle immediately, as you would a gasoline engine.
Improvements in glowplugs
This improvement arose from new emissions control standards. When tougher laws also affected diesel engines, new glowplug designs reduced the smoke billow that used to come standard with every diesel startup. It worked by remaining in operation even after ignition, so there was less soot buildup. This improvement reduced startup emissions by 60 percent.
Computer technology in cars also led to heating coil or glowplug evolution. The computer alerts the glowplug to the engine temperature so it can adjust its heating cycles. That allows engines to heat up quicker and monitor pressure for the best air compression. This also allowed the creation of improved oxygen-sensing devices that also reduced emissions and start time.
All of this came together to make diesels more efficient. With that efficiency also came more power and torque. This is why diesel trucks are so popular for towing. Yet their fuel consumption is much lower than gasoline engines performing the same work.
Glowplugs show that innovation often arises from one part. The new design of these heating coils affected the diesel engine in new and improved ways that make them efficient and pleasant driving vehicles today.
If you want the best diesel parts in Fredericktown, OH and the best service for your vehicle, Purrformance Diesel is the place to visit. Call us today to schedule an appointment or see if the part you need is in stock.