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.Continue Reading
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
Car tune-ups may entail different actions to ensure cars run smoothly and safely, such as repairing and replacing oil and air filters, adjusting timing belts, inspecting the engine and adjusting the clutch on vehicles with a manual transmission system. Tuneups vary in extensiveness depending on the make and year of the car, along with any indications of problems. Regardless of car, however, technicians perform tune-ups using different diagnostic equipment and tools, which help detect problems.Full Answer >
The main indicators of a bad timing belt include a high-pitched noise coming from the engine, difficulties when starting the car, poor performance on the road and an excessive amount of exhaust. A vehicle owner must never ignore the symptoms of a bad timing belt. A timing belt that breaks often causes serious engine damage.Full Answer >
Exhaust resonators are used to create smoother driving conditions, reduce noise from the engine exhaust and enhance engine performance. Exhaust resonators are add-on features within the exhaust system. The resonators are used primarily in combination with the muffler to reduce excessive exhaust noise.Full Answer >
Some signs of low transmission fluid are slipping or jerking motions as the gears shift, dragging of the vehicle as it picks up speed, increase in the temperature of the transmission and failure of the transmission to engage. Low transmission fluid levels are the most common problem associated with transmissions.Full Answer >