What should I do if my fan clutch is not working?

Switch on the A/C and turn it down to the coldest setting. If it fails to cool down after several minutes, or seems to be emitting unusually warm air, there could be a problem. Hold your hand a few inches away from the vent so slight variations in temperature will be more noticeable.

How to remove a clutch nut on a 2005 Ford F-150?

After battling the clutch nut on a 2005 Ford F-150 5.4L with both a band wrench and a special removal kit that didn’t fit my vehicle, it occurred to me there may be a better way. If you’ve struggled like I have, you may find this method pretty helpful. All you need is a length of chain about 8-10 inches long. Loading…

What causes oil to come out of a fan clutch?

Run your finger along the edges of the bearing seal on the backside of the fan clutch. If it comes away with a heavy coating of oil, the culprit is either a crack or a faulty seal. Radial streaks are another potential clue—this happens when oil escapes from the clutch and is then blown outward in all directions by the fan.

When to know if your car fan clutch is binding?

Activity that’s louder than normal may indicate binding. A binding fan clutch will typically be accompanied with warm air flow from the A/C, since the fan isn’t turning the way it should be. Start your vehicle and listen for the fan to engage. Give the engine a little time to warm up. After 4-5 minutes, the fan clutch should come to life.

Do you need DRB to test fan Cluch?

If the connector has not come apart or damaged or if the above statement has not been exceeded then a more in depth search will be required and you will need a decent DRB to test it. Oh yeah I can stop the fan! I better order one any good suppliers out there?

What’s the best temperature to test a fan clutch?

Make sure your new fan clutch is the same type as the original. It’s possible to upgrade from a non-thermal clutch to a more efficient thermal model, but not the other way around. Keep your engine temperature below 210 °F (99 °C) while you’re running your tests to prevent it from overheating.

What causes radial streaks in a fan clutch?

Radial streaks are another potential clue—this happens when oil escapes from the clutch and is then blown outward in all directions by the fan. Inside the fan clutch, there is a small reservoir filled with a viscous silicone-based oil. The oil flows to and from the main chamber as engine heat fluctuates, engaging and disengaging the clutch.

How does a non thermal fan clutch work?

A thermal fan clutch has a coil in the middle of the center of the front of the fan. When this coil heats up to a certain temp it engages the fan to spin at the rpm of the engine. A non thermal does not have the coil and is always engaged. So it is always spinning at the engine rpm.

Why does my D Stock clutch make a lot of noise?

Getting back to you first post, It is vert common for the D stock fan clutch to cause a lot of fan noise at start up and you swear that the engine is rev’ing fast and you have now power. It is a combination of the clutch locking up a little and the design if the fan blades. A lot of D owner’s complained about the noise.

More likely, you’re going to have to remove the shroud. This means draining some coolant, disconnecting the upper radiator hose and sometimes removing the belt. If the clutch is held to the belt pulley hub by screws or bolts, use a plumber’s strap wrench to keep the pulley from turning while you loosen the screws.

How many bolts do you need to unbolt a fan clutch?

On many imports, four or five bolts hold the fan to the clutch, and four or five hold the clutch to the fan pulley. Before you unbolt anything, look at the fan pulley and the routing of the drivebelt.

How does a water pump fan clutch work?

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. The fan clutch will spin loosely until the temperature reaches a certain level, at which point the fan clutch will fully engage…

What is an electric fan clutch?

The fan clutch is a cooling system component that controls the operation of the engine cooling fans. 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.

What are the symptoms of a bad or failing fan clutch?

As the fan clutch is a cooling system component, any issues with it can cause overheating and other issues. Usually a bad or failing fan clutch will produce a few symptoms that can alert the driver of a potential issue.

How does a torque limiting fan clutch work?

A torque-limiting fan clutch reacts to engine speed. A centrifugal valve opens to allow the flow of heavy silicone fluid, locking the fan blades to the pulley. At idle and low engine speeds, this fan clutch is fully engaged, gradually disengaging as engine speed increases.

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. Try to spin the fan with your hands.

When to replace a water pump fan clutch?

What happens to the fan clutch at high speeds?

At low and idling speeds, the clutch allows the fan blade to turn at almost a 1:1 ratio. At high speeds, the silicone fluid within in the clutch will lose its ability to transfer the energy from the shaft to the fan clutch body (and therefore, the fan) and the fan is then allowed to almost free-wheel, removing its load from the engine.

How do you remove a clutch on a Ford Fan?

Remove the large nut on the fan with the 1-1/16 wrench by turning counter clockwise. Once loose, turn the fan in the same direction and it will come right off.

When do you know it’s time to replace the fan clutch?

According to Hayden, here are some signs your fan clutch might need replaced: Fan spins excessively when engine is stopped (three or more times when hot engine is shut off). Poor A/C performance at idle or low vehicle speeds. Fan speed does not increase when engine is hot.

How is a fan clutch attached to a water pump?

This large nut is directly attached to the fan clutch mechanism. The water pump pulley has about 1-inch long threaded post on the end of the pulley. The nut is screwed onto the post on the water pump pulley. This requires a large wrench and a tool to lock the pulley from moving as the nut is broken loose. Remove the fan shroud.

What are the different types of fan clutches?

Types of Fan Clutches. The main types are non-thermal, thermal, and electronic — all of which use a silicone fluid to engage and disengage your fan. Non-thermal clutches operate solely based on the shaft speed of the water pump. At low and idling speeds, the clutch allows the fan blade to turn at almost a 1:1 ratio.

Is there a pulley holder for a fan clutch?

Pulley Holder & Fan Clutch Tool Kit – 3472 . . Only 4 left in stock – order soon. . . . Only 10 left in stock – order soon.

Do you have to take off radiator shroud to replace fan clutch?

If you’re lucky, there may be enough room to unbolt and remove the fan and clutch without taking off the radiator shroud. More likely, you’re going to have to remove the shroud. This means draining some coolant, disconnecting the upper radiator hose and sometimes removing the belt.

How do you remove a water pump from a Ford Fan?

IThe shroud will come out with the fan. Remove the top radiator hose by using a screwdriver to loosen the clamps. Hook the ends of the water pump pulley lock on the bolts on the outside of the water pump pulley. Remove the large nut on the fan with the 1-1/16 wrench by turning counter clockwise.

Pulley Holder & Fan Clutch Tool Kit – 3472 . . Only 4 left in stock – order soon. . . . Only 10 left in stock – order soon.

What does a fan clutch do on a water pump?

A fan clutch is a temperature-controlled coupling between the water pump shaft and the fan which allows the fan to be operational at low speeds and disconnected at higher speeds.

What does the fan clutch do in a Ford Explorer?

The Ford Explorer fan clutch is responsible for the performance of the engine cooling fan. The engine needs to operate at a set temperature, and if the fan runs constantly, it may run below the optimal temperature. If the fan never runs at all, the engine may overheat.

What should I do if my fan clutch fails?

When it fails, the engine can be put at risk of serious damage due to overheating. If your vehicle is displaying any of the symptoms above, or you suspect that your fan clutch may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the car will need a fan clutch replacement.

Can a bad fan clutch cause engine overheating?

A bad fan clutch may not engage properly or at all, and as a result, will disable the fans or prevent them from working at maximum efficiency. This may result in the engine overheating, which will lead to more serious issues if left unattended.

What should I do if my fan clutch is not working?