Should A Fan Clutch Spin Freely When Cold

Symptoms of a Bad or Failing Fan Clutch - YourMechanic.
Should a Fan Clutch Spin Freely When Cold or Hot? (Answered).
Fan Clutch Diagnosis - Engine Cooling System.
New fan clutch I still hear the roar | Corvette Forum.
02 7.3 fan clutch question - Ford Power Stroke Nation.
2003 Tacoma AC Fan Clutch assembly issue? | Toyota Nation Forum.
Fan Clutch Engaged EVERY Start Up... | Jeep Wrangler Forum.
Clutch Problems Maxxforce Fan.
How to Test a Fan Clutch: 11 Steps (with Pictures) - wikiHow.
Fan Spins Freely..Fan Clutch bad? - StangNet.
Symptoms of the Bad Automotive Fan Clutch - 2CarPros.
Is a Radiator Fan Supposed to Spin Freely By Hand... - e trailer.
Should a fan clutch spin freely?.

Symptoms of a Bad or Failing Fan Clutch - YourMechanic.

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. Yes, a bad fan clutch will cause A/C issues. The condenser needs air flow to cool hot refrigerant. Secondly, should a fan clutch spin freely when cold? If you try to spin the fan, the fan is tight and will not spin freely even when cold. In fact, it's just as tight when it's cold as it is when it's hot. Also to know is, what are the symptoms of.

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

With an OEM thermally-actuated fan clutch, when the engine is cold (hasn't been started for the day), you should be able to freely spin the fan blade - It'll only become difficult to spin when the engine is very hot (on the verge of overheating). It sounds like your NAPA clutch isn't thermally-actuated - some aftermarket clutches aren't. Mine does not spin freely, and has a fair amount of resistance. A friend told me that it should spin freely when cold. Also, the part number for a new fan clutch for my 1981 BJ41 is 16210-56020. Running a cross reference on Aisin's website lists two possibilities. The one that seems to be the correct part number is FCT-061, which is a direct. 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).

Fan Clutch Diagnosis - Engine Cooling System.

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.

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

Generally, a fan clutch is tight and does not move completely freely when the engine is cold, however, if the clutch has gone bad it will spin by a considerable amount. Try to spin the fan clutch and observe its rotation. If it rotates without much effort and. 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.

02 7.3 fan clutch question - Ford Power Stroke Nation.

1987 - 1996 F150 - Fan clutch - Is it possible to have the wrong fan clutch? Mine seems to be fully engaged a lot more than it should.... when the vehicle is cold, spin the fan by hand. Does it spin freely? If not, it's not working properly. It should spin and come to a stay as if there is some drag. If the outdoor temps are quite hot, and you. Easy diagnosis. (1) When at a stop light (idling)and your temp gage starts creeping up quicker and higher than normal your clutch fan is failing. (2) With engine off and cold, spin your fan blade by hand. If you feel no resistance your clutch is failing. The fan in a 6.0 is on a clutch that will increase the speed of the fan as needed and is controllable. But even when cold the fan will be "freewheeling" at several hundred RPMs. Now if your fan is roaring like jet engine all the time (like it would when you are pulling a 12k 5th wheel up an 8% mountain pass), then you likely have a problem.

2003 Tacoma AC Fan Clutch assembly issue? | Toyota Nation Forum.

On a cold start with the AC on recirc that fan should be in full lockup and pulling as much air as it's capable of moving. Alternatively, if the truck is warm and your fan isn't in lockup (like you could slow it down with your hand - kinda like you could a ceiling fan that you shut off from high setting, then yeah your fan clutch is probably shot. The oil flows to and from the main chamber as engine heat fluctuates, engaging and disengaging the clutch. Traces of oil are perfectly normal, and won’t necessarily be an indication that your clutch is shot. 6. Turn the fan by hand. Grab the edge of one of the blades and give it a good push. 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 Engaged EVERY Start Up... | Jeep Wrangler 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. Because the compressor is one of the main parts of the air.

Clutch Problems Maxxforce Fan.

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. Yes, a bad fan clutch will cause A/C issues. The condenser needs air flow to cool hot refrigerant. 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.

How to Test a Fan Clutch: 11 Steps (with Pictures) - wikiHow.

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.. Should a fan clutch spin freely when cold. By Radhe Gupta June 9, 2021. 0 Comments.

Fan Spins Freely..Fan Clutch bad? - StangNet.

The sensor in the fan clutch watches fan speed at all times, even if its a viscous clutch portion thats bad, it will still throw a code. If you can spin the fan with ease and it doesnt have any drag then the viscous portion it bad. Id it doesnt speed up at idle with ths ac turned on then you need to check if the ecm is commanding 99% pwm.

Symptoms of the Bad Automotive Fan Clutch - 2CarPros.

As it approaches 200° F, you should hear the fan noise rise to a mild roar and see the fan spinning a lot faster. Air temperature in the shroud should remain in the 150° F to 190° F range. 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. September 17, 2021. Greg Rasa. A fan clutch is a thermostatic motor conditioning fan that may freewheel at low temp when cooling isn’t required, enabling the engine to heat up quicker and reducing engine load. When the temperature rises, the clutch activates, allowing the fan to circulate air to chill the engine.

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

You can test your fan clutch. Try to spin the fan by hand. It should have pretty good resistance while it's at ambient temperature... maybe it will spin a single time or so around and stop. It should not spin freely. It should also not be super hard to turn. If it spins freely, or fairly freely, it needs to be replaced. Same if its über hard. 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.

Should a fan clutch spin freely?.

Joined Jul 27, 2011. 260 Posts. #4 · Jul 28, 2011. If the clutch turns out to be bad, something to consider is modding in an electric fan instead. You can get a the supplies for around $100 including a controller and they are nice to free up some engine power. Helps fuel economy a bit too on the highway instead of spinning that fan constantly. 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?. What is the normal resistance of a cold viscous fan clutch? Mine does non spin freely, and has a fair quantity of resistivity. A booster told me that it should spin freely when frigid. Also, the part number for a spick-and-span fan clutch for my 1981 BJ41 is 16210-56020. Spurting a cross reference on Aisin's website lists two possibilities.