How do I know if my fan clutch is bad?
Symptoms of a Bad Fan Clutch
- Engine overheating at low speed or when stopped is the most-common fan clutch failure symptom.
- Insufficient heat in winter is another common problem but caused by the opposite fan clutch failure.
- Excess fan noise at high speed is caused by the same problem, a seized fan clutch.
Is a flex fan better than a clutch fan?
For high rpm use, flex fans are considered an upgrade over clutch fans. They can be a good choice for modified vehicles turning 6,000 – 8,000 rpm. Advantages include: They move more air for better cooling.
Can you put a car fan on backwards?
A word about installation: It is possible to install an engine fan backwards. That is, if a correctly installed fan draws air through the radiator, an incorrectly installed fan still draws air through the radiator – it does not blow air through the radiator. Here is a picture of a fan correctly installed on its drive.
How tight should a fan clutch be?
Snugged up is Good Enough. For “The Jesus Nut” to the Threaded outer portion of the Water Pump… Snugged Tight is Fine.
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.
What is the best way to test clutch?
Part 1 of 1: Test the clutch Check the clutch. Before checking to see if a clutch needs to be replaced, see if it is engaging and disengaging properly. Drive and test the clutch operation. Put the vehicle into first gear and drive off from a stop, as usual. Test the clutch by attempting to take off from third gear. Replace the clutch if necessary.
What causes the fan clutch to engage?
A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine.