3.2 Lighting Maintenance:
- Regularly inspect and clean lighting fixtures to ensure optimal performance and longevity.
- Replace burnt-out bulbs promptly to avoid overloading other components and prevent issues like flickering or dimming.

2. **Check Engine Light:** This light can indicate a wide range of issues, from a loose gas cap to a faulty sensor. It's important to have the issue diagnosed by a professional to prevent further damage.

The PCV valve is typically a small, one-way valve located in the engine's valve cover or intake manifold. It is connected to the crankcase via a hose and allows excess gases, moisture, and other byproducts of the internal combustion process to be drawn out of the crankcase and into the intake system. This process helps to prevent the build-up of pressure inside the crankcase, which can lead to oil leaks, gasket failures, and other engine problems.

3. Differential: The differential is a component that allows the wheels to spin at different speeds while maintaining power from the engine. Differentials are crucial for vehicles with multiple axles, such as rear-wheel-drive and all-wheel-drive vehicles.

By familiarizing yourself with what's under the hood of your vehicle, you can feel more confident in understanding how your 1991 Chevrolet Cavalier 2.2L Car Computer operates and identify any potential issues early on. Regular maintenance and care of the engine compartment can help keep your vehicle running smoothly and ensure its longevity on the road.

2.2 LED Lighting:
- Light Emitting Diodes (LEDs) produce light by passing an electric current through a semiconductor material.
- Highly energy-efficient, durable, and long-lasting, making them an increasingly popular choice for residential and commercial lighting.

Part 2: Types of Lighting
2.1 Incandescent Lighting:
- Features a filament inside a bulb that emits light when heated by an electric current.
- Known for its warm and cozy glow, but less energy-efficient compared to other types of lighting.

Proper maintenance and care of the transmission are essential to ensure its longevity and optimal performance. Regular fluid checks and changes, as well as following the manufacturer's recommended service schedule, can help prevent potential issues and extend the lifespan of the transmission.

Introduction:
Electrical and lighting systems play a crucial role in our daily lives, providing the power and illumination we need to function efficiently and safely. Whether in our homes, offices, or public spaces, understanding the basics of electrical and lighting systems is essential for ensuring proper functionality and safety. In this comprehensive guide, we will delve into the fundamentals of electrical systems, types of lighting, and best practices for installation and maintenance.

In conclusion, wheel bearings are a critical component of a vehicle's wheel assembly, contributing to smooth and efficient operation while reducing friction and wear on the wheels. Regular maintenance and timely replacement of worn-out bearings are essential to ensure a safe and reliable driving experience.

When it comes to maintenance, wheel bearings should be checked regularly as part of routine vehicle inspections. If any signs of wear or damage are detected, it is advisable to have the wheel bearings replaced by a professional mechanic to ensure optimal performance and safety on the road.

- Regularly check fluid levels, such as oil, coolant, and windshield washer fluid.
- Inspect the engine belts for signs of wear and tear, and replace them if necessary.
- Change the engine air filter as recommended by the manufacturer to ensure optimal engine performance.
- Have routine maintenance checks performed by a qualified mechanic to address any potential issues before they become major problems.

In conclusion, the PCV valve is a small yet critical component of a vehicle's emissions control system. By effectively regulating the flow of blow-by gases from the crankcase back into the combustion chambers, the PCV valve helps to reduce harmful emissions, improve engine performance, and extend the life of the engine. Regular maintenance and inspection of the PCV valve are essential to keep your vehicle running smoothly and efficiently.

Over time, the PCV valve can become clogged or stuck, leading to a number of potential issues such as decreased fuel efficiency, rough idling, and increased emissions. It is important to regularly inspect and replace the PCV valve as part of routine maintenance to ensure optimal engine performance and emissions compliance.

Within automatic transmissions, there are different variations such as traditional automatic transmissions, continuously variable transmissions (CVT), and dual-clutch transmissions (DCT). Each type has its own unique design and functionality, but they all work towards the same goal of efficiently transferring power from the engine to the wheels.

1. **Overheating:** This can be caused by a malfunctioning radiator, low coolant level, or a faulty thermostat. If your engine is overheating, it can cause serious damage and should be addressed immediately.