To confirm the diagnosis, start with this simple test: Spin the fan as hard as you can on an engine that has not been started that day. If the fan rotates more than five times, you can bet the clutch is bad. You should feel some resistance and the fan may spin up to three times, depending on the ambient temperature.
A failing fan clutch can actually cause the engine fan to become loose and wobble. Sometimes this wobble can be heard while driving, especially at freeway speeds. You can turn on your car’s engine while the vehicle is in park or neutral, pop the hood, and see for yourself that the fan is wobbling as it spins.
The average failure rate of the radiator clutch fan shows that the fan clutch failure that needs replacement is most typical around an average of 140,00 miles. This is no guarantee, but the repair data has shown that around 140,000 miles are the average rate for failure and the average time of fan clutch replacement.
Yes, a bad fan clutch will cause A/C issues. The condenser needs air flow to cool hot refrigerant.
Engine overheating at low speed or when stopped is the most-common fan clutch failure symptom. When cruising, the vehicle moving through the air pushes air through the radiator, cooling the engine. … Insufficient heat in winter is another common problem but caused by the opposite fan clutch failure.
There should be a nice, consistent, deliberate rotating force such that when you let the fan go, it should start spinning back up at a rather rapid rate of rotation. If right after you release the fan to spin, and the fan spins ever so slowly, then your fan clutch isn’t working right.
it will tighten itself down just fine.
A fan clutch replacement cost will range anywhere from $75 to $200 for just the part, without the labor costs. When labor is accounted for in the overall fan clutch replacement cost, the total price can range between $285 to $500 to replace the fan clutch only.
A thermostatically controlled fan clutch typically drives the cooling fan. … Krytox™ lubricants have low volatility and high viscosity, providing long life and excellent lubrication to the fan clutch bearing under these high temperature conditions.
Sometimes the fan clutch in your car will start making squeaking and squealing noises. … If you start your car and turn on the air conditioner or heater and the noise is a scraping or squealing noise that goes away when you turn off the fan, it is probably the clutch.
The fan clutch on most vehicles take less than an hours labor to replace. You would need to supply the vehicle year, make and model with engine size to get a more accurate labor for this job.
While there are times you can repair the fan clutch, in most instances it’s best to replace it. … Your engine may have a hard time cooling down (overheating) or heating up since the fan clutch isn’t working.
The fan clutch is one of the most essential components in the operation of cooling fans and greatly contributes to the overall operation of the engine. While many new vehicles use electric cooling fans, many older vehicles utilize a mechanical fan clutch to help control the fans.
How do you know if its working properly? When your motor is hot, you should be able to hear the fan kick in. If you can’t, pop the bonnet, and turn the vehicle off while watching the fan. If it comes to a fairly abrupt stop, the fan hub is working properly.
When compared to an electric fan, fan clutches are quite inefficient. … The benefits of a Thermatic Fan lay in its ability to provide constant air flow, improved fuel economy, better air-conditioning performance, cooler engine running and increased engine power.
A bad water pump bearing will usually cause the water pump to leak and/or make noise, but not always. Remove the fan clutch and see if the play is in the water pump shaft. If it feels tight (no play or wobble), replace the fan clutch.
If your coolant level is low, then it might not feel as if your car is getting cool, even with the radiator fan turned on and working. If you don’t replace your coolant level when it’s low, then this can cause the engine to become seized.
Raise the hood, with the engine off and cold. Reach in and spin the fan blade by hand. If it continues to spin freely for more than five turns with no signs of drag, you have a bad fan clutch.
If you give it a flick it should only turn one or two blades. This is because the fluid is cold and has a higher viscosity. Engine warm – Fan will be easier to turn. Give it a flick and it should spin more freely.
All water pumps with bolt on pulley or fan. Water pump hub loosens or comes off, snapped shaft or failed bearing. Defective or out-of-round pulley, defective clutch assembly, damaged fan, or improper installation of fan and clutch assembly. … Failure to do so will lead to premature pump failure and VOID THE WARRANTY.
2002 Chevrolet Trailblazer Fan Clutch – from $214.99+ | AutoZone.com.
Fan clutch oil is a high viscous silicone oil with its characteristics of clear color, odorless, non-toxic and non-irritating.
should a fan clutch spin freely when hot
bad fan clutch test
fan clutch always engaged
will a bad fan clutch cause ac problems
will a bad fan clutch make noise
viscous fan clutch troubleshooting
how to fix a bad fan clutch
new fan clutch not engaging