I just replaced my entire heating and cooling system; hoses, belts, heater and evaporator cores, radiator, idler pulley, a/c compressor, etc and it wasn’t cooling right yesterday. Yup; I should have replaced the fan clutch while it while I had it out! Strange how now I realize I’ve never heard the fan engage since I’ve owned this van.

Good to know! Going to check mine tomorrow to see if it freewheels like this! As I was recharging the system after replacing it, I noticed if I used my box fan in the garage to blow over the condenser the high side pressures would drop by about 20psi or so. Granted it isn't summer just yet.

Saw this video then noticed the gorilla in the background! I live in Texas but have LOTS of family in Pittsburg. Always a fan of The Deli and Chicken Mary's too!

Excellent Excellent Excellent! Chasing an AC problem on my little Nissan Frontier, this solved the problem! Thank you!😊

Easy lesson in diagnostic fan clutches. Glad I watched, I was concerned about my cars (78 Vette) fan clutch. It’s good after seeing the video. Gonna try the dollar 💵 test now, on the condenser with engine running. 🤫

Thanks Professor Ur the best

A great thing to add would be about how a clutch can fail by being constantly engaged. My 92 F150 had that issue.

@outhere8690

Жыл бұрын

That's what my '88 is doing...and the issue that brought me here.

@zombiesheadshot6715

10 ай бұрын

My same issue on a 2014 f350. Can’t figure any obvious solutions

Wow very informative

Thank you.

What are the torques for the clutch bolts and fan nuts,thank you for any help .😎

I am having an issue with my Colorado, first off, smell of coolant burning but no leak, seems to be the water pump, second, the truck at operating temp stays at about 1/4 on temp gauge, it used to be a tad below 2/4, sometimes the fan is super loud to the point that it sounds like a school bus, i ordered the waterpump and thermostat, do you think the fan clutch should be replaced as well? when I try to spin the fan its pretty firm, i was told it might be stuck on, but like I said, I can move the fan by pushing it, it just does not do like full rotations, it moves about 4 inches then stops, thanks in advance.

@ProfessorPentane

2 жыл бұрын

It sounds like your fan clutch is tight when cold as it should freewheel more when the engine is cold. If you engine is running cool, that can cause more carbon build up in the combustion chamber and back side of intake valve. More fuel may be washing down the cylinder walls and getting into the oil with a colder running engine. I would replace the fan since you are already replacing the water pump since you are in the area. Good luck with the repair and thanks for watching.

@toksixjay

2 жыл бұрын

@@ProfessorPentane thank you for the reply, I will look further into it

@thomasblechinger2143

2 жыл бұрын

My fan on my 2005 lincoln aviator sounds like it acts identical to yours. Please let me know what the fix was for the obnoxious fan sound. Thanks and good luck

Whats the difference in the thick fan clutch and the thin one that they say fits the same vehicle? Ive got an 03 Tahoe and it shows both will work its got the thick one on it now

@UFOGHOSTHUNTER

10 ай бұрын

Thick is HD version.

I have a 95 Silverado, the temperature gauge rise when im sitting idle but drops when i drive, ive changed the thermostat, waterpump and blew out the radiator, could it be the fan clutch, but the fan still spends fast with the motor and when its off it barely spins when i spin it

Great info professor 👍 how about if a friend of mine eliminates the fan shroud what would happen??? He thinks it will cool better but i told him he needs the shroud to create vortex "sweet spot" what say you professor?

@ProfessorPentane

Жыл бұрын

I agree with you Ford Henry, keeping the shroud will help cooling. Thanks for watching.

The fan cover if im missing the bottom cover for the fan would that affect or make truck feel like hella air is coming out the fan like 2 much ??? Need help

@ProfessorPentane

2 жыл бұрын

If the fan clutch is locked all the time, there will be "fan roaring". The fan will make lots of noise at idle when the vehicle is not hot. A locked up fan clutch could be your problem for to much air flow. If you can not spin your fan when the engine if off, this is your problem. Thanks for watching Professor Pentane.

I have a 2011 Dodge Ram 1500 at idle it starts to overheat but when driving it stays at proper temperature. Could this be the same thing I need to repair ? I’m at about 180k miles on it rn

@ProfessorPentane

2 жыл бұрын

This could be an air flow problem. See if a dollar bill will stick to the outside of the condenser when the vehicle is running hot. If the dollar bill does not stay attached to the condenser due to good air flow, your fan may be the problem. Thanks for watching and good luck.

My 93 dakota gets hot when stopped but while driving it cools off. Could that be a fan problem?

Is it possible the fan clutch being the reason for the motor sounding like a jet engine?. I've notice the truck takes longer to pick up speed and makes the jet engine sound even higher. It does pick up speed, but when stop at a light it's rough.

@frediedeleon6680

2 жыл бұрын

Same thing is happening to my Tahoe

@argent2020

2 жыл бұрын

@@frediedeleon6680 The only thing I've notice with the warning lights (Like yellow Icon of Engine) is the Air bag yellow light coming on. I called Autozone, the one answering didn't have a clue and told me to hold on, "let me get an expert". Dude answers, I told him and he said I need to replace the Catalytic converter...he added: "They're two" and I Added it: "NO!, they are three"....which it's true since I had replaced them and watch them doing it, besides, anything with the Catalytic converter, the check engine would come on right on.

@jasonnorth6541

Жыл бұрын

Same

@sparkyjerred419

Жыл бұрын

Fan clutch is binding . Replace it.

@ATC235

Жыл бұрын

How did you make out. I think this is the same issue I'm having

Ok Scott. How about if you have a case where the fan is roaring at highway speeds or comes and goes with noise

@ProfessorPentane

9 күн бұрын

Hello Mr. Henry! Is this still a mechanical clutch fan? If so, it is probably locking up intermittently. But, the fan should roar if extra cooling is needed on a hot day with the A/C on. Thanks for watching the videos.

Do fan clutches have bearings?

My truck blows cold on the highway but at idle or traffic starts blowing warm could it be my cooling fan clutch ?

My chevy truck is super cold on the winter and the temperature stays at 160 because the fan clutch is always on and spins faster as i speed up my truck. Is that normal? I don't remember it being so cold last winter, or listening to the fan clutch that much when cold.

@rogermerritt6470

Жыл бұрын

Roy, my 2002 Suburban is running really cold now during the winter. It's about 40f right now and the temp gauge never goes above the 1/4 mark. Computer says it reading about 56C. You think we need to replace the fan?

So will the fan clutch make the fan shake and make the car belt fly off at high speeds? Or is it the water pump?

Hi profesor Norman, My fan clutch takes almost 4 seconds to stop spinning after car turned off, sometimes AC feels like a bit lazy, but very often it works pretty cold, what is actually happening is once i run my truck uphills for lets say 20 minutes, engine temps reach up to 212-216°f, on flat run it average temp is 187-195°f, i mean, it doesn't overheat normally, got to say, i just got replaced water pump, new 182°f stat, good shape radiator, all new hoses, New radiator cap all recently, but my 97' 4runner just keeps consuming coolant from the expansion tank, Sir, can we say that my fan clutch is done? It seems consuming once it gets engine loaded,

@ProfessorPentane

Жыл бұрын

4 seconds is to long. Normally, a bad clutch will cause poor cooling in stop and go traffic. A/C will cool better in the highway with a bad clutch. I would replace the fan clutch if this is your problem. Good Luck.

Hi, what if my clutch fan,(1995 Chevy 1/2 ton) when I grab my fan blades,engine off, I can feel some play in the bearing...it doesn't wobble too much but does have some play in it. Is the clutch bad if I have this play in it???

@ProfessorPentane

Жыл бұрын

The movement you feel is the water pump bearing. A little movement is normal but if it is too much, the water pump bearing is going out. Normally the water pump weep hole will start dripping when this is an issue. Good luck and thanks for watching.

@roonbooks3227

Жыл бұрын

@@ProfessorPentane actually ,it's not the water pump. If I watch closely, I can see the movement. It's clearly the clutch fan. I suspect having my winter rad cover on, may have prematurely damaged my clutch fan

my fan is like hoping idk if it’s bracket?

👍🏾👍🏾👍🏾

I have an 2012 ram 1500 Laramie. When I take off from a dead stop. It sounds like an airplane. But when I get down the road then you'll hear my exhaust. Is my fan clutch bad

@ProfessorPentane

Жыл бұрын

Yes, it sounds like the fan clutch is locked up all the time. The fan should free wheel when the engine is cold or if the engine is not running.

What if the fan barely spins?

@ProfessorPentane

2 жыл бұрын

Hi Mike, The fan will "Roar" when the engine is cold and it will rob power, which could cause lower MPG. Not so much of a problem in the summer time when the fan needs to lock-up more often when the vehicle is hot in stop and go traffic.

I have a issue and no one can figure it out. Only when it's hot out. I start my 2016 check express van and it sounds like a loud fan blowing. When I put it in gear the van barely moves and the fan spools up when I apply the gas. After 5 mins the fan sounds normal and the truck Drives Normal. Anyone have a clue what the issue could be? 2 dealers and 3 mechanics and no answers.

@tomaskey6844

2 күн бұрын

Wow! Very unusual sounding. Did you get it resolved?

So then what would make my car sound like a bus lol

Come on bruh. Least show a faulty fan that spins, then show a clip of a fan in good working order for a visual comparison. Sheesh

how bout just showing us fan clutch is good or bad in 30 seconds? THIS IS NOT ABOUT A FAN CLUTCH EXCLUSIVELY

I seem to have the opposite problem . My clutch fan on my nissan pathfinder soulds like its l9cked on or something. Fan is always sounding like its spins as fast as the rpm all the time. Would that be a bad cluchfan aswell?

With my unqualified miscellaneous experience, your tips Norman, Greatly Help in furthering my Familiarity, Cheers 🍻 📍🦘 3:05