Should A Fan Clutch Spin Freely When Cold

Should a Fan Clutch Spin Freely When Cold? - Ballistic Parts.
Fan Clutch | Mercedes-Benz Forum.
New fan clutch I still hear the roar | Corvette Forum.
Fan spins freely hot or cold... bad fan clutch, right?.
Should a Fan Clutch Spin Freely When Cold or Hot? (Answered).
Is a Radiator Fan Supposed to Spin Freely By Hand... - e trailer.
Fan Clutch Engaged EVERY Start Up... | Jeep Wrangler Forum.
Fan Clutch Replacement - Popular Mechanics.
At what temperature does a fan clutch engage?.
Is My Fan Clutch Engaging: How Can I Diagnose a Fan Clutch... - 2CarPros.
Bad clutch fan? help please! - DodgeTalk Forum.
Fan clutch stiff all the time - new clutch, or new silicone?.
Should radiator fan spin freely with engine off? | Jeep.

Should a Fan Clutch Spin Freely When Cold? - Ballistic Parts.

The clutch isn't engaging the water pump shaft. The purpose of the clutch is to grip the water pump shaft when the thermostat in the hub decides the air through the radiator is too hot. Otherwise, the fan freewheels. As for that Dodge tech - he needs to look for other employment. The fan won't "click". I notice when I get back in garage hot or cold the fan doe not freely spin it is very stiff on the clutch.... Joined Sep 10, 2006 · 910 Posts #2 · May 26, 2011. Only show this user. The fan clutch engagement is controlled by the temperature of the air that has passed thru the hot radiator. The hotter the air, the more solid the engagement.

Fan Clutch | Mercedes-Benz Forum.

The average AC compressor clutch replacement cost is between $700 and $1000. Labor costs tend to be about $150 to $250, with the new compressor costing $450 to $850. It's not normally recommended to replace the compressor clutch, but rather, install a whole new compressor. A thermal fan clutch is a fluidic clutch containing a heavy fluid. much like a torque converter works, as the impeller spins, the fluid creates drag on the housing. this friction causes the fluid to heat and eventually the clutch will lock into a 1:1 speed ratio with the water pump. if the clutch loses fluid, it is possible to lock in a cold and unbalanced state. the added vibration and. It is not that difficult to test thermal fan clutches. Lift the hood. 1. Verify the front of the clutch is not covered in filth and slime because the silicone fluid has started to leak out. 2. Gently push the fan blades towards and away from the radiator. Excessive play means the bearings in the clutch are shot.

New fan clutch I still hear the roar | Corvette Forum.

No overheating occurs obviously, as there is plenty of airflow. The engine fan is also not able to be freely spun at cold temperatures (checked in the morning when it was around 50 degrees outside and the truck was cool). What I've done: I purchased a replacement fan clutch from Auto Zone. It was slightly different than mine as it has some sort..

Fan spins freely hot or cold... bad fan clutch, right?.

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. 437 Posts. #10 · Apr 5, 2011. That's the job of the viscous fluid Jerry was talking about. This fluid changes with temp causing the fan clutch to either engage or disengage. Before you start your jeep in the morning try to spin the fan, it should spin free, if not the clutch is engaged and the fan clutch should be replaced.

Should a Fan Clutch Spin Freely When Cold or Hot? (Answered).

Adjust the strobe light until the light flash is synchronized with the marked fan blade bolt (the fan blade appears to stand still). The fan blade speed must not be greater than 2,000 rpm on 7.3L engines. Turn the engine off. If the fan blade speed was greater than 2.000 rpm on 7.3L diesel engines, install a new fan clutch (8A616). Spin the fan quickly by hand with the engine cold and off. It should spin 1/4-1/2 turn, not bind or free wheel. When you first start it cold, you should hear fan roar which fades within 1 minute or so as the fan clutch warms up. Your temperature does not significantly increase when you come to a stop after driving 25+mph. Your truck actually.

Is a Radiator Fan Supposed to Spin Freely By Hand... - e trailer.

When the engine is off, there are a few things you can do to check the fan clutch: Spin the fan. Electronic types might freewheel, but most fan clutches should spin with a little effort. If the fan spins more than three times, you may have a bad fan clutch. If the fan doesn’t spin at all, the bearing may be seized. To check a fan clutch just try to spin the fan while the cooling system is cold Maxxforce 13 belt diagram Maxxforce 13 belt diagram 9L 24v retired the mechanical injection pump in favor of a high pressure common rail injection system for the 2003 model year.... Since the fan blades did not spin freely, I now knew that the fan clutch was in. It spins very freely, and the belt is tight. Just the fan spins the water pump pulley doesnt spin with it. Is that normal? I am trying to diagnose my cooling problems and maybe this is a real dumb question but it seems like the fan shouldnt spin with the belt on, or else when the engine is spinning its not really turning the fan right?.

Fan Clutch Engaged EVERY Start Up... | Jeep Wrangler Forum.

The maximum spin a fan clutch can have when it’s cold is about ½ or ¼th a turn. So, if the fan clutch is spinning freely, it means it is going bad and you might even hear a squeal from the clutch. However, if you have an electronic fan clutch, then it might freewheel even when it’s cold. If your fan clutch is spinning freely, perhaps the thermostatic spring has given up. The.

Fan Clutch Replacement - Popular Mechanics.

A fan clutch should not freely spin unless it is at its operating temperature. Generally, a faulty fan clutch should spin well around or more than five times a day the vehicle has not been used if you have tried to spin with the maximum force possible. A properly functioning fan will put up resistance as you try to forcefully spin it. Testing the fan clutch: If you have reason to suspect that the fan clutch is defective, here is the recommended procedure to verify the condition of the fan clutch. 1. Start the car (cold) with the hood open and note if the fan is turning, increase the engine RPM and note if the fan turns faster and the noise increases, if it does, first good. The sound may be easily audible and present at all times when the engine is cold and hot. 3. Decrease in power, acceleration, and fuel efficiency. A decrease in performance is another symptom of a bad or failing fan clutch. A faulty fan clutch that leaves the fan permanently engaged will not only cause a noisy engine, but can also cause a.

At what temperature does a fan clutch engage?.

The fan blade would spin freely. I replaced the fan clutch with a Behr which was the same on the car. Now in the Texas heat, after the engine is at operating temperature, leaving from a stop light, it sounds like a jet, which it did not do before. Just my fan clutch experience and hope it may lead you to your solution. The fan clutch for around $180 is capable of maintaining 80-85 degrees celsius constant temperature. In most cases, it is mounted to the fan and on the water pump or any other belt-driven pulley. The fan clutch is spinning freely until the temperature reaches a specific heat level.

Is My Fan Clutch Engaging: How Can I Diagnose a Fan Clutch... - 2CarPros.

A fan clutch should not spin freely whether it is cold or hot because a properly functioning clutch should face enough resistance to prevent it from spinning freely. A good fan clutch spins freely if a significant amount of force is applied but if it spins on a small force, then it is going bad. Table of Contents. Have you tested the fan clutch? You should be able to turn it by hand without a whole lot of resistance. 1998 T-100 SR5 2WD auto, 2012 Scion iQ, 2008 Matrix base... Pretty typical thing to go bad. Time for a new one. Fan should spin freely at cold temps (startup) with no resistance. 96 T100 extra cab, locked & lifted, back on the road after. Moteur froid et éteint. Si vous pouvez faire tourner le ventilateur librement, c'est mauvais. S'il est bon, il y aura une résistance considérable.

Bad clutch fan? help please! - DodgeTalk Forum.

Check it by trying to spin the fan by hand before you start it in the fan should spin but it should be stiff. If it spins freely; then the clutch is you will need to replace it. Now the electric vs. clutch fan debate is one that divides Jeepers right down the all have our preference. IMHO, the clutch fan is.

Fan clutch stiff all the time - new clutch, or new silicone?.

Attached to the engine's water pump a fan clutch can go bad in one of two ways. First the and most common way a fan clutch can fail is the clutch shoe inside the unit can get stuck and not disengage causing the fan to lock up on the input shaft which will permanently engage the cooling fan which will be accompanied by a noticeable roaring sound. The KJ CRD service manual that I have for the 2002 2.5/2.8 CRD does not mention the newspaper test but states "When the engine is cold, the fan should spin freely by hand". If yours does not do this then it would seem the viscous clutch is faulty.

Should radiator fan spin freely with engine off? | Jeep.

A fan operated by an electric motor relies on the information from the ECU, so if the ECU receives false information from the thermostat, it may also lead to the fan not engaging. Should the fan clutch be engaged when cold? The fan should never be engaged when cold. If it won’t move at all, it means the clutch failed in the open position and has created a solid. I spun the fan with the engine cool and turned off. It rotates smoothly and quietly but there is definitely some resistance. If feels like a fluid coupling or gummy bearing grease. It does not feel like a solid friction. In contrast, I remember a fan clutch on a friend's car spinning freely with no resistance whatsoever. The common cause of TAC problems is a faulty electronic fan clutch. In addition, a malfunctioning fuel system is also the cause of a defective TAC system.... Previous: Should A Fan Clutch Spin Freely When Cold? Next: The Main Factors Affecting Ford V10 Life Expectancy. Leave a Reply Cancel reply.