Comprehensive GMC Electrical System Diagnostics and Repair

Most of your GMC systems require electricity to work, which means electrical issues can cause serious problems for your vehicle. As your GMC dealer, we can trace and repair any possible electrical problem. We’d like you to know a few signs you need to visit us for GMC maintenance.

Electrical Problems? Signs You Need to Visit Us for GMC Maintenance

Worn Alternator

Your GMC contains a mini electrical generator called the alternator. It starts producing electricity as soon as your engine is running. The alternator spins at high speed, generating magnetic energy which is converted to AC and finally DC for your vehicle systems. As time passes, the alternator’s electrical production will drop due to worn or damaged parts.

This problem isn’t immediately noticeable as the alternator produces more electricity than your vehicle requires. Once the alternator can’t supply enough power for all the systems, the computer will intervene. The computer shifts the limited power from system to system depending on demand, and this will cause seemingly random electrical issues. We’ll test your alternator and install a new one if the original is failing.

Damaged Wiring

Your vehicle contains a huge amount of wiring to carry electricity to every system and component that needs it. The wiring is covered by thick plastic insulation that prevents electricity loss in transmission and protects the wiring against heat and dirt. Despite this protection, wiring ages, and older wiring becomes brittle and can break.

A broken wire will cut power to the system or component it was connected to, but the wire continues to receive electricity. This causes the wire to get hot enough to burn the protective insulation, producing dangerous and toxic smoke. Our technicians will examine your wiring and replace any damaged sections.

Blown Fuses

Fuses are connected to every electrical system in your GMC. They protect their connected system against rogue electrical charges by absorbing the incoming charge and blowing out. This protects the component from damage but shuts it down until the fuse is replaced.

As we saw above, the alternator generates electricity for your vehicle. If its fuse blows, the electrical system will draw power from the battery. A battery can’t store enough power to support all your vehicle’s systems and will drain within approximately thirty minutes. We’ll examine the fuses and replace any blown ones.

If you have an electrical problem, contact us today at Stan King GMC SuperStore in Brookhaven, MS.

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