Signs That Your Chevrolet Tahoe Alternator is Failing
When the alternator of your Chevrolet Tahoe is not working correctly, you cannot miss it. Here are some obvious signs that your Chevrolet Tahoe alternator is failing:
The car doesn't start, and the battery is dead.
Technically, this isn't an alternator problem, but if your battery is dead, you can trace the problem to a faulty alternator. Since your battery is only designed to provide enough power to get the engine started and relies on the alternator for power, it is easy to rule out the problem, whether it is the battery or the alternator. All you need to do is to jump-start your Tahoe. Once the engine starts, remove the cables right away. You'll know if the alternator is the problem if the engine dies again. But if your vehicle continues to run, the problem is likely the battery.
Warning light stays on, and the electronics don't work.
Before you turn the engine on, several lights illuminate on the instrument cluster. These lights turn off after a few seconds or after starting the engine. If the light that is shaped like a battery stays on, there is a problem with your alternator-many mistaken this as a battery problem. This light is linked to your vehicle's computer that monitors the electric output of your alternator. If the current goes above or below the pre-set limit, the "battery" light illuminates and stays illuminated. When this happens, all the electric accessories in your vehicle will start working erratically. Your lights may start dimming or flickering. The headlights may be excessively bright or dim. Your dash lights, tachometers, speedometers, and all the other devices may stop working or work erratically.
You notice a burning-rubber smell.
At this point, you have to use your senses to check the condition of your alternator. Start the engine and keep it running for a few minutes. If you can smell a burning rubber, then check the alignment of the belt. Use your other senses too. Feel the alternator. If it is too hot, parts inside may be failing soon. See if there is loose or missing belt. Check the belt visually for cracks and wear. Repair or replace your alternator or its components to correct the problem.