Reasons for Your Pontiac G6 Headlight Assembly Malfunction
The headlight assembly is one of the most frequently used parts in your Pontiac G6 especially at night or when driving in low-visibility areas. It allows you to see through the road and consequently prevent meeting accidents. Unfortunately, due to the location of the headlight assembly in your vehicle, it is bound to get damaged especially by road debris and weather elements. Of course, it can also fail due to wear of certain components in the assembly such as the headlights, headlight housing, bulb, and lens. Here are some tips on what you can do to find out the causes of your Pontiac G6 headlight assembly failure:
Dimming and flickering
Possible reasons for dimming are a burned-out bulb, a bad ground, and dirty lens. Check these components before anything else. If you find that the bulb has reached its end or is damaged, replace it. If there is a bad ground, which is often a product of rusty bulb terminals or loose wiring, you may simply brush the terminals or change the bulb. Dirty lens could easily be cleaned or restored.
However, dimming may not be due to any problems in the headlight assembly itself. Sometimes, it could be due to problems in the electrical system of your vehicle especially when multiple car accessories and devices are being used all at the same time. There may be improper distribution or insufficient supply of power by the battery or alternator. Measure the current in these parts using a voltmeter.
Sometimes, moisture builds up inside the headlight lens, which could be indicative of a leak. First, inspect the surface of your headlight lens and headlight housing for cracks. Usually, water enters through these small fractures, eventually starting elecrical issues in your headlight assembly. When fixing cracks, removal of the headlight from the vehicle would be necessary. Once it is removed, make sure to let the inside dry up before proceeding with the repair. It is important to eliminate every drop of moisture in the headlight. Afterwards, you can already seal the cracks with epoxy. Apply epoxy on the exterior of the headlight as well to make the repair solid. It would also be better if you use silicone spray on the headlight bulb gasket. It will aid in making the gasket supple enough, ensuring a tight seal.