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.Know More
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 about Car Parts & Maintenance
Signs of an overcharged car battery include loss of water, battery failure or a hydrogen explosion. In vehicles equipped with an onboard computer, the overcharging battery causes faulty error codes. The most common cause of overcharging is a faulty voltage regulator. If the batteries fail prematurely, check the regulator or have an expert check it.Full Answer >
Signs of a bad ignition switch could include dashboard lights that come off and on, problems with the vehicle starting and a switch that is hot to the touch. A bad ignition switch can mimic other problems that are seen in a car, such as a faulty motor starter.Full Answer >
Signs of a faulty catalytic converter include reduced fuel economy, excess engine heat, and impaired engine or exhaust performance. A visible fuel vapor over the carburetor intake, performance changes after the removal of oxygen sensors and increased carbon emissions from the converter are also warning signs.Full Answer >
If the car smells like burning rubber, gears shift on their own or it suddenly becomes difficult to press on the pedals, the clutch may need to be replaced. These are the three most prominent warning signs of a bad clutch, claims Mr. Clutch.Full Answer >