Replace the failed Glow Plugs in your 1982-2000 Chevy/GMC 6.2L/6.5L Diesel. A glow plug is a heating element that heats incoming fuel and air to encourage efficient fuel combustion in a diesel engine. This heat can be necessary for a diesel engine to start, run, and function optimally especially in colder weather conditions. Each cylinder of your engine typically has one glow plug, either in the pre-chamber or in the combustion chamber. Symptoms of a faulty glow plug include a check engine light (CEL), hard starting, rough idle/misfire, loss of power, black or white smoke, and a decrease in fuel efficiency. When a glow plug fails to work properly, the combustion chamber doesn't have the necessary heat that can be required to help ignite the fuel. Depending on the outside temperature, it may take several attempts at starting the vehicle before achieving ignition. In freezing winter temperatures, it is possible for a diesel engine to not start at all without operational glow plugs. Replace your glow plugs, harnesses, or control module/controller and shop all the top manufacturers such as Diesel RX, Dorman, Bostech, Ford/Motorcraft, Dtech, Alliant Power, GM/AC Delco, and Diamond Advantage By Navistar.
