Signs that a fan clutch is going bad include vibration, excessive fan noise at any speed, bad air conditioner performance at idle or low speed and failure to increase speed when the engine gets hot. Other symptoms, such as free-wheeling, looseness and leaking fluid, also indicate a worn fan clutch can be ascertained by examining the fan manually.
Fan clutches are located between the water pump shaft and the engine fan. They provide a more efficient cooling system for the engine by regulating when the fan turns on and off or can operate at lower speeds, such as when the vehicle is traveling at a high rate of speed.
There are two varieties of fan clutch: thermal and non-thermal. Non-thermal clutches operate based on the speed of the water pump shaft. Thermal fan clutches operate based on temperature changes in the engine bay, making them somewhat more sophisticated than non-thermal fans. These fans use a bi-metal thermostatic coil to determine when they engage to cool the engine.
Both types of fan clutch share the water pump shaft and the operation of each affects the operation of the other. Worn bearings on the clutch cause the water pump bearings to wear, and the reverse is also true.Learn More
Signs of a person going deaf can vary depending on age, but can include ringing in the ears, ear pain and the ear feeling full, according to the Scripps Research Institute. In children the signs can be harder to discern, but can include a lack of interest in musical instruments, not making noises such as cooing or babbling and, in older children, not reacting to their name.Full Answer >
Drive a manual transmission vehicle by practicing with the car off, coordinating use of the clutch pedal with the gearshift and making sure you hit the clutch when you brake. Stick shifts use a third pedal on the floor and a gear shift lever in the middle part of the car to the right of the driver.Full Answer >
Paddle shifters are attached to the steering wheel of a car and allow drivers to manually switch gears without using the clutch. These shifters are mostly found on high-performance sports cars but are becoming more popular on sedans, hybrids and smart cars.Full Answer >
To bleed a clutch, step on the clutch pedal, and undo the bleeder valve to allow the fluid to flow out until it slows. Close the valve, and release the pedal. Continue until all air bubbles exit the valve, refilling the reservoir as necessary.Full Answer >