A modern vehicle isn’t simply mechanical. It involves a vast array of sensors and electrical components designed to keep you comfortable and keep your truck running efficiently. Electrical issues can be one of those things that strikes fear into a backyard mechanic’s heart, but you shouldn’t worry too much. Many parts are readily available, and some of the fixes are fairly straightforward. +Read more
These parts include the LB7 glow plug relay, which ensures the glow plugs that help your diesel engine start properly in colder weather heat up properly. Failure of this part is usually indicated by a flashing glow plug light. Then there’s the LB7 boost sensor, which measures the boost pressure in the intake manifold. Similarly, the LB7 MAF sensor, which stands for the LB7 mass air flow sensor, measures overall airflow into the engine itself.
Anyone who has been behind the wheel of a vehicle will have noticed the “check oil” light coming on at some point. That light gets most of its information from the LB7 oil pressure sensor. The LB7 fuel pressure sensor is something less noticeable. It monitors the amount of fuel in the system and relays the information to the vehicle’s PCM. Similarly, the LB7 crank sensor monitors the position and rotational speed of the crankshaft. This information is vital for engine timing.
The LB7 intake heater is a vital part of your truck’s cold start system. It warms up the air heading into the engine, which in turn warms the engine slightly and reduces the chance of everything locking up from the cold.