It doesn’t matter whether you’re driving a mini, an estate car, a pick-up truck, or even a large lorry. All modern cars now rely heavily on electronics to ensure they run smoothly and efficiently. This is particularly important as vehicle emission standards continue to tighten.
In most situations, the system works very well and your truck does exactly what you want it to. However, like all systems, there are times when things go wrong. It’s useful to understand the most common causes of electrical problems in trucks. It will help you to deal with any issue or ensure you know to contact your automotive electrician. They have the expertise and tools to fix any issue.
How The Electrical System Works
Your truck has a powerful battery that provides electricity to the starter motor. This allows you to crank the engine, effectively turning it without fuel. The process of cranking encourages the engine to start.
During this process, you turn the ignition on. This fires up the main computer in your truck. The onboard computer tells the fuel pump and injectors to get fuel in the chamber and oxygen, before introducing an electrical start and running the engine.
During normal driving, the computer constantly monitors the engine performance and adjusts the input of fuel and oxygen to ensure the truck drives smoothly.
It’s complicated and effortless for you.
But, sometimes things go wrong.
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If your truck won’t crank or the lights keep going dim then you probably have an issue with your battery. Although these are designed to provide the high cranking power your engine needs, they will eventually discharge enough that they cannot crank the engine enough to start it.
You’ll probably notice that the truck is getting harder and harder to start in the mornings. It’s time to change the battery.
However, before you replace the battery, it’s worth getting your automotive technician to check. Flat batteries can be a sign that the alternator isn’t charging them properly.
Your dashboard has an array of warning lights, all designed to tell you there is something wrong with your vehicle. However, when a warning light illuminates you should also consider an electrical fault. There are hundreds of sensors on modern trucks. If a sensor stops working it can make the computer think there is an issue, which it will warn you about.
It’s worth getting your technician to run diagnostics before confirming any fault.
Although the electronic systems in trucks are much more advanced than they used to be, they are still reliant on tiny wires to pass all the necessary signals and currents around.
These wires can perish thanks to the extreme conditions they are operating in. Wiring issues can be the hardest to locate but they are often the root cause of electrical problems. You’ll need expert help finding the issue.
Don’t forget, your local technician has a complete diagnostic setup. They can plug your truck in and find out everything the computer thinks is happening. It’s generally the fastest way to solve electrical issues and get you back on the road.