How can I check if my fan clutch is working?
How can I check if my fan clutch is working?
Grab the fan assembly with your hands and move it back and forth. If the clutch or fan have excessive play, remove the fan and clutch and check if the water pump shaft — where the fan-clutch assembly mounts — displays excessive play. If the water pump shaft checks OK, replace the fan clutch.
When to replace a water pump fan clutch?
If the clutch or fan have excessive play, remove the fan and clutch and check if the water pump shaft — where the fan-clutch assembly mounts — displays excessive play. If the water pump shaft checks OK, replace the fan clutch.
What do you need to know about a viscous fan clutch?
It’s important to check the drive belt for wear and glazing. A viscous fan clutch contains a thick fluid that can leak from the unit. This fluids viscosity is measured in CST or centistokes and will wear over time. Check the unit for leaks through the seams and around the shaft.
How does a mechanical fan clutch work on a car?
While many newer vehicles now use electric cooling fans to keep the engine cool, many older vehicles used a mechanical fan clutch to control the fans. The fan clutch is a thermostatic device, which means it operates based off temperature, and is usually mounted on the water pump, or another belt driven pulley.
What are the signs of a bad fan clutch?
One of the most common signs that the fan clutch is going bad is an excessively loud noise coming from the cooling fan. It is fairly common for a bad fan clutch to get stuck in the operating position, which causes the engine fan to become fully engaged, even if there isn’t a need for it to be on.
How do I know if I have a bad fan clutch?
Another common symptom of a faulty fan clutch is excessively loud cooling fans. If the fan clutch gets stuck in the engaged position, which is not uncommon, it will cause the fans to fully engage even when it is not desirable for them to be on. This may result in an excessively loud engine from the fan blowing at full speed.
How do you test a clutch fan?
Inspecting the Fan Clutch Manually Pop the hood. Locate your vehicle’s fan clutch. Examine the unit’s general condition. Feel for excess movement in the fan and housing. Spot-check for oil leaks. Turn the fan by hand. Have your fan clutch replaced by a professional.
How does check fan clutch for proper operation?
How to Test a Fan Clutch Step 1. With the engine off, inspect the fan blades carefully. Make sure the blades are all in good shape and secured to… Step 2. Look carefully around the fan clutch for signs of oil leakage. Fluid-coupling and thermostatic fan clutches are… Step 3. Grab the fan
