Diyvehiclerepair
- How do I know if my clutch fan is bad on my Jeep?
- How do I know if my clutch fan is bad on my Jeep XJ?
- Can you drive with a bad fan clutch?
- What happens when a fan clutch goes bad?
- How do I test my Jeep Wrangler fan?
- Is a clutch fan supposed to spin freely?
- What temperature does a fan clutch engage?
- Why does my fan clutch stays engaged?
How do I know if my clutch fan is bad on my Jeep?
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.
How do I know if my clutch fan is bad on my Jeep XJ?
Fan spins excessively when engine is stopped. Poor A/C performance at idle or low vehicle speeds. Fan speed does not increase when engine is hot. Fan speed does not increase until engine is excessively hot.
Can you drive with a bad fan clutch?
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.
What happens when a fan clutch goes bad?
A bad or failing fan clutch leaves the fan permanently engaged, causing a noisy engine and a decrease in performance. More importantly, a stuck fan clutch can cause excessive, unnecessary drag on the engine, which results in a drop in acceleration, power & fuel efficiency, sometimes to a quite noticeable degree.
How do I test my Jeep Wrangler fan?
Spinning the fan by hand can give you a general idea of the fan motor condition. The fan should spin a few revolutions before coming to a slow stop. If the fan feels gritty or does not spin freely, the fan motor may be bad.
Is a clutch fan supposed to spin freely?
Expert Reply: If there is a fan clutch between the fan and radiator on your vehicle, then you will be able to turn the fan by hand when the engine is off and not running. ... If the fan is turning freely with no clutch, then there is a problem with either the belt being loose or the pulley will need adjustments.
What temperature does a fan clutch engage?
At what temperatures do fan clutches engage? Answer: Most fan clutches engage at about 170°F air temperature (about 180-190°F engine temperature). They reduce the temperature about 20°F before disengaging.
Why does my fan clutch stays engaged?
If the fan clutch seizes, it remains engaged all the time, cooling off the engine too much. Excess fan noise at high speed is caused by the same problem, a seized fan clutch. This can cause bearing damage, radiator damage if the blades flex too far, or even shatter a plastic fan.
