2. **Propylene Glycol:** This type of coolant is less toxic than ethylene glycol, making it a safer option for the environment. Propylene glycol-based coolants are often used in eco-friendly or environmentally-conscious vehicles.

In conclusion, the power steering pump is a vital component of the power steering system in vehicles. It plays a crucial role in ensuring smooth and effortless steering for drivers. Understanding the function of the power steering pump, recognizing signs of failure, and promptly addressing any issues are essential for maintaining optimal steering performance and overall vehicle safety.

If an issue is detected with the brake calipers, it is important to address it promptly to avoid safety risks and further damage to the braking system. Common problems with brake calipers include leaking seals, seized pistons, and sticking caliper sliders. In many cases, the best course of action is to have the brake calipers inspected and repaired by a qualified mechanic.

Function:
The primary function of a half shaft is to transfer power from the transmission to the wheels while allowing for the vertical movement of the suspension. This is achieved through the CV joints, which enable the shaft to move at different angles without binding or causing excessive wear. As the wheels move up and down over bumps and uneven terrain, the half shafts adjust to maintain a constant velocity, hence the name constant-velocity joints.

Overall, the differential is a critical component that enables smooth and efficient driving, especially during turning maneuvers. Regular maintenance and proper care of the differential can help prolong its lifespan and ensure optimal performance of the vehicle.

- Limited-slip differentials improve upon the open differential design by providing some resistance to wheel slippage. This helps to distribute power more effectively to the wheel with better traction, improving performance in slippery or challenging driving conditions.

The power steering pump is a device that helps supply pressurized hydraulic fluid to the power steering system. It is usually driven by the engine through a belt and pulley system. The pump plays a crucial role in transmitting power from the engine to the steering gear, which in turn helps the driver turn the wheels with minimal effort.

The power steering pump is connected to the power steering reservoir, which contains hydraulic fluid. As the Engine Fault Diagnosis runs, it powers the pump to pressurize the fluid. When the driver turns the steering wheel, the pump sends pressurized fluid to the steering gear, which then assists in turning the wheels. This hydraulic assistance makes steering much easier, especially at low speeds or while parking.

- Open differentials are the most common type and allow each wheel to rotate at different speeds while distributing power evenly. However, they are not ideal for off-road or high-performance applications as they can easily lose traction.

Regular maintenance of the power steering system, including checking fluid levels and ensuring proper belt tension, can help extend the life of the power steering pump. If any of the above signs are observed, it is crucial to have the power steering pump inspected and repaired by a qualified mechanic. Ignoring issues with the power steering pump can lead to more serious problems and compromise the safety and handling of the vehicle.

Functionally, a brake caliper works by converting hydraulic pressure, applied by the brake pedal, into mechanical force through the brake pads. When the driver presses on the brake pedal, hydraulic fluid is forced into the caliper, causing pistons inside the caliper to push the brake pads against the rotor. This friction between the brake pads and the rotor generates the stopping power necessary to slow down or stop the vehicle.

Proper maintenance of brake calipers is crucial for ensuring the effectiveness and longevity of a vehicle's braking system. Regular inspection of the calipers, brake pads, and rotors can help detect any signs of wear or damage early on. Symptoms of faulty brake calipers include squeaking or grinding noises when braking, uneven brake pad wear, and a soft or spongy brake pedal feel.

Introduction:
The fuel pump is a crucial component in a vehicle's fuel system. It plays a vital role in ensuring that fuel is efficiently delivered from the fuel tank to the engine. Understanding how the fuel pump works and the signs of potential issues can help you maintain the performance and longevity of your vehicle.

The purpose of the differential is to allow the wheels on the same axle to rotate at different speeds while still receiving equal power. This is necessary because when a vehicle makes a turn, the outer wheel has to cover more distance than the inner wheel. If both wheels were locked together and forced to rotate at the same speed, it would result in either wheel slipping or causing undue stress on the drivetrain.

- Locking differentials offer the most traction and stability by physically locking both wheels on an axle together, ensuring equal power distribution. This type of differential is commonly found in off-road vehicles and trucks designed for heavy-duty use.