I'd usually just replace it if I had a problem, but this is an excellent solution if you are stuck someplace or need to use the vehicle until you can buy a replacement. Thanks!
very helpful dude. of all the videos on this subject,yours was best and i really mean that. right to the point. also,my jeep has overheated for ages. that was half the problem. :-)
That's called a thermostatical fan clutch. That spring on the front like you said heats up and coils up like a thermostat in the motor and locks the fan in. The other types are centrifical which spins with the engine rpms on centrifical force, the faster the engine spins the more the fan locks in. The other type is a solid fan type that spins the same as engine rpms at all times. Then for most big trucks, they use air controlled fans and those spin up when the engine reaches a certain temp.
At low RPM and vehicle speeds the fan clutch locks up to make the fan turn to compensate for the lack of airflow through the radiator such as stop and go traffic. As the vehicle speed and RPM picks up the clutch allows the fan to freewheel as airflow coming through the grill flows through the radiator cooling the fluid (Coolant) running through it. It is a centrifugal clutch much like the one on our old mini-bikes. Mercedes and BMW do use a Thermo-static design fan clutch and others have electric fan in addition. I am ASE certified. (A. sk S. omeone E. lse)
Thanks for the video Bam. Mine was stuck in the full on position (opposite to yours) but with WD40 and a blast of air it's working perfectly again on my 96 Safari. I didn't even have to remove it from the car, just loosened the shoud and reached in. An excellent fix, thanks again.
I can’t even get my fan/clutch off so I’m stuck trying to do this with it still on the engine. Not enough room so I gave up after a while and put everything back together lol. Hopefully the penetrating oil will still be working and eventually free it up
What is the white stuff in the fins? I just bought a new old stock fan clutch and it had some grey and white stuff about 2 inches long on the edge and on 4 or 5 fins. Looked sorta like dry toothpaste. I don’t know if it’s oxidation or it leaked a little where it pressed on in the box and dried. It seems to be good still but haven’t installed yet.
Well hell you went through the trouble to take it off. Why not put a new one on instead of putting an old one back in. And one more thing fan clutches can be bad in both stuck and unstuck. Sometimes they stay stuck engaged and others stay stuck open not engaged. Cool video anyway
Not all of us are financially well off. We have to save money where ever we can to keep all the bills and food paid every month. But I understand what ur saying
Temporary fix only, these, alike most modern parts are designed to fail and usually irreparable, then when you go for parts, find the replacement is 10 times the cost of an older cars (same) unit. Auto makers used these tricks to make aging cars economically irreparable, which i see as a criminal act.
It is criminal. For one, a vast waste of energy mining and shipping minerals and materials, smelting, refining, processing and then more shipping and more processing. Then assembly, more shipping, warehousing, shipping to local depots, sale then carried home. Then, within days, weeks, months or years, depending if it is a childs toy, an appliance, whitegoods or cars, respectively these same, expensive items are consigned to the trash, to create nightmare sized landfills, with little being recovered and recycled. Brilliant! When they talk about the human race now living off the equivalent of 5 plaqnets or somesuch notion, you can see this criminal abuse by corporations is the primary reason. But, some may say that we pay for what we get. This is not true: the criminality of the corporation is that, following the lead of GMoters etc, any given item is stripped down via material quality, design standards and durability but NOT in appearance: the item you buy looks fine, but was designed to break, wear out, or fail mysteriously (modern auto electrics). In other words, the modern corporation uses millions to develop crap, to make things cheaper to manufacture and shorter lifespan. People mistakenly think most corporations use money to improve their offering, some few still do but the others are indelibly stained by the criminal malfeasance.
That is what they call in the industry predetermined obsolescence The oldest light bulb still going has been burning for over 100 years and counting. The light bulb manufacturers got together after they found out that they were not getting repeat sales ever since then they have designed light bulbs to burn 24/7 for only 40 days. Predetermined Obsolescence!
I think my fan clutch may be bad.. my fan used to run directly all the time. It's 30 degrees outside right now, that may be what is causing it to not engage. Wonder if it will go back to normal when it warms up a bit
The valve working again does you no good if all the fluid has leaked out. You can peel them apart, fill them about half way with fluid again, and then re-seal everything and it should work fine again, as long as your "valve moves/ like you said/ and the bearing isn't locked up.
How you fix one of these clutch fans is to take it off, throw it in the scrap bin, and replace it with a 4-6 blade old time solid fan and then forget about it.
Not true. There are blind plugs under the ones that hold it to the fan. You have to drill them out. Then you can replace the fluid in them. After you flush it the old stuff out. If it leaks around the outer seal. Just reseal it. The inner seal can be pressed out. Once you press out the threaded holder with a puller. Just replace with the same part number on the seal.. As these things cost $100.00 new for a factory one.
I thought the fan is supposed to free wheel when its cold and lock up when its hot? Isn't this how it works, so less air is drawn in when cold and more air drawn in when hot?
YES! that's exactly how it works. but when its cold and you free wheel it by hand its supposed to have at least some resistance. like with one good spin it will travel about one and a half turns before it stops is a good estimate. a little after that is good. but if it turns like 5 turns before it stops then its time for a new fan clutch....
bam6972 Ok, thanks for that. In fact, when mine is stone cold with the engine off and I try to spin the fan, I can barely get a quarter of a turn out of it. I guess this explains the constant loud fan noise. Hence why I have been searching TH-cam for an answer and a fix. Thanks for the help and great TH-cam clip.
aussikiwi same with mine...very stiff to turn, and lots of fan noise at cruise rpm...i can stop the fan with a towel protecting my hand when engine is running, but it has lots of resistance...i was suspecting failure of the bearing..
ok, i think this may be my problem on my 04 4x4 suburban. when im driving at any speed if I "remove my foot from pedal" when coasting there is a spinning whirring sound from engine, but when I "press pedal with gas" the sound goes away? I tried something when I was coasting at any speed, I put the car in neutral and the sound is still there, it only goes away when I press on the pedal, WEIRD!? Gonna try this fix. Thank you and let me know what you think on my engine issue.
+m00nchildblues it sounds like the fan is doing its job actually. idling when hot it turns the most and when you hit the gas it will actually kinda free wheel. so you might here a roaring sound at a stop and not when you get going again. that's normal. but if the roaring gets louder when you hit the gas then the valve is stuck in the open position and locking the fan up permanently.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
can you epoxy the clutch to the shaft and get bad fuel mileage but it wont overheat, and then sell the car and make a profit? not buying a ton of parts ..
possibly yea, if you get enough epoxy on it. it might break free though after a bit. but if it stays it will make one hell of a blowing noise. just take the thermostat out.
dont have to pull intake. just take the top sensor off and look inside with flashlight. if you see gold spots then its leaking fuel inside. should be all black carbon build up.
+Lady Sylvia R. Richardson yes as long as it sprung back from where you turned it. if it didn't spring back then put some pb blaster on it and soak it for a few hours then try turning it. if it doesn't free up then time for a new one.
do the same thing. loosen that middle pin and put some pb blaster in there and work it back and forth with a pair of needle nose pliers. that pin is just stuck in the locked positions. just need to free it up.
All fans make noise at start up. As that is normal when you are stopped and have the AC on..Till it gets warmed up or you start moving.. It tells you it's working. As it takes time for the fluid to disengage the fan. It works just like a transmission. The thermo coil is what controls the opening and closing of the valve.
1600 what? between 50 and 100 euros(~~dollars) is the price for a Heavy Duty one,for a 3.1 TD trooper/Monterey for instance; LOTS of aftermarket brands,near 20 or more!!!!
@@moemuny89 oh,those!! still,i think there are some: my first google hit was this one: 06-206 Clutch Kit: UD Truck (Nissan Diesel) 1400 L6 4.2L Turbo-Diesel 11.8 in. In Stock E-mail this product to a friend MSRP: $414.59 Price: $311.79 Sale Price: $296.19 You Save: $118.40 (28.6%) $296 is already double what it should be,i know exactly what it takes to make the components that make up the clutch,but i've also seen one for another UD engine for 800!!!!
Your supose to be able to stop it with you hand 😂😂there not supose to spin on a cold engine they only engage wen rad is hot it work then stop wen rad cools simple the design is so that the fan never spins at same speed of engine other wise you get a big roar first thing on a cold engine you should be able to free wheel it after 2 minits
Ok, it will brake later on so, i think sometimes if you do this work its better do it right and that's replacing with a new one and don't have a engine replacement later on when this fan clutch fails again
Not everyone can just throw new parts at vehicles. Many people are not that financially well off. We have to save any where we can just to make bills food every month.
I'd usually just replace it if I had a problem, but this is an excellent solution if you are stuck someplace or need to use the vehicle until you can buy a replacement. Thanks!
very helpful dude. of all the videos on this subject,yours was best and i really mean that. right to the point. also,my jeep has overheated for ages. that was half the problem. :-)
thanks Bam for making & posting the vid, excellent info and demonstration.
That's called a thermostatical fan clutch. That spring on the front like you said heats up and coils up like a thermostat in the motor and locks the fan in. The other types are centrifical which spins with the engine rpms on centrifical force, the faster the engine spins the more the fan locks in. The other type is a solid fan type that spins the same as engine rpms at all times. Then for most big trucks, they use air controlled fans and those spin up when the engine reaches a certain temp.
At low RPM and vehicle speeds the fan clutch locks up to make the fan turn to compensate for the lack of airflow through the radiator such as stop and go traffic. As the vehicle speed and RPM picks up the clutch allows the fan to freewheel as airflow coming through the grill flows through the radiator cooling the fluid (Coolant) running through it. It is a centrifugal clutch much like the one on our old mini-bikes. Mercedes and BMW do use a Thermo-static design fan clutch and others have electric fan in addition. I am ASE certified. (A. sk S. omeone E. lse)
Michael Ferreira yea this is a thermo static fan. (coil on front) thanks for the info
Your voice sounds exactly like Nicolas Cage bro. Good stuff. Thanks.
Hah yeah, exactly!Fixing Eleanor :) Great tip btw, I am gonna try it now on my hummer! Thanks a lot!
😂
I was thinking the same thing
Don't want to mess up the syncro mesh, clutch master cylinder
It probably IS Nick Cage. This is his day job. 😎
thanks for all your help.
THANKS! Its worth a shot. ive tried EVERYTHING else! if not, ill replace it. fingers crossed!
Thank you for sharing your knowledge
Saw your fan clutch hack worked perfectly thanks !!!!.
Thanks for the video Bam.
Mine was stuck in the full on position (opposite to yours) but with WD40 and a blast of air it's working perfectly again on my 96 Safari.
I didn't even have to remove it from the car, just loosened the shoud and reached in.
An excellent fix, thanks again.
cool. glad it worked out for ya.
And did it stay functioning properly 3 years later?
I am wanting to put electric fans you used. How did you run them and did you use a different water pump?
I can’t even get my fan/clutch off so I’m stuck trying to do this with it still on the engine. Not enough room so I gave up after a while and put everything back together lol. Hopefully the penetrating oil will still be working and eventually free it up
What is the white stuff in the fins? I just bought a new old stock fan clutch and it had some grey and white stuff about 2 inches long on the edge and on 4 or 5 fins. Looked sorta like dry toothpaste. I don’t know if it’s oxidation or it leaked a little where it pressed on in the box and dried. It seems to be good still but haven’t installed yet.
will a stiff fan or maybe stuck fan which spins at engine speed all time cause a starting issue like it strugles
Good information. Thanks for posting...
My spring is very rusty. I think the spring is binding up. Is this only a temporary fix? How can I clean/smooth the spring for proper operation?
Well hell you went through the trouble to take it off. Why not put a new one on instead of putting an old one back in. And one more thing fan clutches can be bad in both stuck and unstuck. Sometimes they stay stuck engaged and others stay stuck open not engaged. Cool video anyway
Not all of us are financially well off. We have to save money where ever we can to keep all the bills and food paid every month. But I understand what ur saying
not a bad quick fix to help you save up to replace it.
Thanks for the info.
Temporary fix only, these, alike most modern parts are designed to fail and usually irreparable, then when you go for parts, find the replacement is 10 times the cost of an older cars (same) unit. Auto makers used these tricks to make aging cars economically irreparable, which i see as a criminal act.
ToxicHolocaust2050 yea that's how the world is now. its a shame isn't it.
It is criminal. For one, a vast waste of energy mining and shipping minerals and materials, smelting, refining, processing and then more shipping and more processing. Then assembly, more shipping, warehousing, shipping to local depots, sale then carried home. Then, within days, weeks, months or years, depending if it is a childs toy, an appliance, whitegoods or cars, respectively these same, expensive items are consigned to the trash, to create nightmare sized landfills, with little being recovered and recycled.
Brilliant! When they talk about the human race now living off the equivalent of 5 plaqnets or somesuch notion, you can see this criminal abuse by corporations is the primary reason. But, some may say that we pay for what we get. This is not true: the criminality of the corporation is that, following the lead of GMoters etc, any given item is stripped down via material quality, design standards and durability but NOT in appearance: the item you buy looks fine, but was designed to break, wear out, or fail mysteriously (modern auto electrics). In other words, the modern corporation uses millions to develop crap, to make things cheaper to manufacture and shorter lifespan. People mistakenly think most corporations use money to improve their offering, some few still do but the others are indelibly stained by the criminal malfeasance.
well said
M
That is what they call in the industry predetermined obsolescence The oldest light bulb still going has been burning for over 100 years and counting. The light bulb manufacturers got together after they found out that they were not getting repeat sales ever since then they have designed light bulbs to burn 24/7 for only 40 days. Predetermined Obsolescence!
Oh okay I see and how does that little sensor come off. I've tried to take it off before but it didn't come off and I don't want to brake it
Mine always flopped around. You just replace the part while its off. If it flies apart there goes everything under your hood.
I think my fan clutch may be bad.. my fan used to run directly all the time. It's 30 degrees outside right now, that may be what is causing it to not engage. Wonder if it will go back to normal when it warms up a bit
The valve working again does you no good if all the fluid has leaked out. You can peel them apart, fill them about half way with fluid again, and then re-seal everything and it should work fine again, as long as your "valve moves/ like you said/ and the bearing isn't locked up.
Thanks man, will give it a try and hope it works!.
Edited Ohh yeahhhh , could feel the resistance right away.
Thanks.
My fan seems to not be spinning as hard as it should. I wonder if this would help🤔
How you fix one of these clutch fans is to take it off, throw it in the scrap bin, and replace it with a 4-6 blade old time solid fan and then forget about it.
Thank you so much ❤️❤️❤️❤️❤️
Does the fan clutch have a bearing inside it?
Good tip thank you!!!
Not true. There are blind plugs under the ones that hold it to the fan. You have to drill them out. Then you can replace the fluid in them. After you flush it the old stuff out. If it leaks around the outer seal. Just reseal it. The inner seal can be pressed out. Once you press out the threaded holder with a puller. Just replace with the same part number on the seal..
As these things cost $100.00 new for a factory one.
I'm gonna try this
you are great man....thanks this issue is very common in most trailblazers
Wow !!! Unless it is leaking, this should fix most fan clutches. Thank you for saving me $70
My issue is the fan spins regardless of temp. At cold temps it shouldn't spin 100%
2000 f150- fan clutch is stuck closed. I wish I had Your problem!
Thank you
what clutch is that from? specs I have the same one and am trying to figure out what it came from
94 chevy s10 blazer with the 4.3l vortec
Thanks
I thought the fan is supposed to free wheel when its cold and lock up when its hot? Isn't this how it works, so less air is drawn in when cold and more air drawn in when hot?
YES! that's exactly how it works. but when its cold and you free wheel it by hand its supposed to have at least some resistance. like with one good spin it will travel about one and a half turns before it stops is a good estimate. a little after that is good. but if it turns like 5 turns before it stops then its time for a new fan clutch....
bam6972 Ok, thanks for that. In fact, when mine is stone cold with the engine off and I try to spin the fan, I can barely get a quarter of a turn out of it. I guess this explains the constant loud fan noise. Hence why I have been searching TH-cam for an answer and a fix. Thanks for the help and great TH-cam clip.
aussikiwi same with mine...very stiff to turn, and lots of fan noise at cruise rpm...i can stop the fan with a towel protecting my hand when engine is running, but it has lots of resistance...i was suspecting failure of the bearing..
Even oil ones have clutch plates
ok, i think this may be my problem on my 04 4x4 suburban. when im driving at any speed if I "remove my foot from pedal" when coasting there is a spinning whirring sound from engine, but when I "press pedal with gas" the sound goes away? I tried something when I was coasting at any speed, I put the car in neutral and the sound is still there, it only goes away when I press on the pedal, WEIRD!? Gonna try this fix. Thank you and let me know what you think on my engine issue.
+m00nchildblues it sounds like the fan is doing its job actually. idling when hot it turns the most and when you hit the gas it will actually kinda free wheel. so you might here a roaring sound at a stop and not when you get going again. that's normal. but if the roaring gets louder when you hit the gas then the valve is stuck in the open position and locking the fan up permanently.
Going out on a limb here but could you possibly have a vacuum leak?
tech fixed it, it was the rear dif bearings shot. 1k later..
my father was so interested with this video
marichelle aporado
;)
very good, video
Gonna try it !
how did that go?
Is this gone in 60 seconds?🤔
If it's gonna give you a hard time to just remove it, there's no reason to put the same back on. Work hard but get it new.
when the car is cold is the fan supposed spin fast as well? or only when warm?
its supposed to freewheel to some extent when cold. and fully engage when hot.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
+bam6972 ok thanks. I am thinking the clutch fan is engaged at all times even when cold. I live in bakersfield and it's been hot and I just don't see the clutch kick in and out. I have a 04 jeep wrangler with 4.0 engine.
can you epoxy the clutch to the shaft and get bad fuel mileage but it wont overheat, and then sell the car and make a profit? not buying a ton of parts ..
possibly yea, if you get enough epoxy on it. it might break free though after a bit. but if it stays it will make one hell of a blowing noise. just take the thermostat out.
there`s isn`t much to fix inside a viscous clutch, as long as there`s no silicone leaks and the valve is free, there`s no need to change it...
Can fan clutch affect the speed of the gearbox
No
So you don't think it could be that I am just trying not to have to pull intake
dont have to pull intake. just take the top sensor off and look inside with flashlight. if you see gold spots then its leaking fuel inside. should be all black carbon build up.
Are you Nicolas Cage? Asking for a friend.
What does the knock sensor do I didn't get that message
it detects spark knock and adjusts timing so that it runs optimal.
Dude you should contact an agent and to voice overs for cartoons...easy money playing a Nicholas Cage character voice
No shit . He does sound like Nicholas Cage..
Con-Fan... LoL
ok i turn the little pin in the middle of the fan clutch was that ok
+Lady Sylvia R. Richardson yes as long as it sprung back from where you turned it. if it didn't spring back then put some pb blaster on it and soak it for a few hours then try turning it. if it doesn't free up then time for a new one.
I like your video but i'm having the opposite problem..Mine is stuck so the fan is turning hard all the time..Any idea's..
do the same thing. loosen that middle pin and put some pb blaster in there and work it back and forth with a pair of needle nose pliers. that pin is just stuck in the locked positions. just need to free it up.
Next video say, "My name is HI Mcdunna."
great way to save 58 bucks... troubleshooting kudos
pronunciation is vis-cuss ... viscous
vicious man viscous!!
Sounds like Nicholas Cage…?!
So mine sounds like its good when i first start the truck and then it quiets down and i dont hear it again till the next morning
does it overheat?
bam6972 no not at all but i never hear it kick on
All fans make noise at start up. As that is normal when you are stopped and have the AC on..Till it gets warmed up or you start moving.. It tells you it's working. As it takes time for the fluid to disengage the fan. It works just like a transmission. The thermo coil is what controls the opening and closing of the valve.
عمل جيد ..نريد الاستمرار يا اخي
Just shitcan it, replace with OEM and continue living your life.
For the sake of £50 id buy a new one anyway cage
yea. this was a bad one. but yea i can eat a peach for hours...... lol
My fan clutch costed 1600.00
1600 what? between 50 and 100 euros(~~dollars) is the price for a Heavy Duty one,for a 3.1 TD trooper/Monterey for instance; LOTS of aftermarket brands,near 20 or more!!!!
Jose Peixoto I got a UD I couldn’t find an aftermarket
@@moemuny89 oh,those!! still,i think there are some: my first google hit was this one:
06-206 Clutch Kit: UD Truck (Nissan Diesel) 1400 L6 4.2L Turbo-Diesel 11.8 in.
In Stock
E-mail this product to a friend
MSRP: $414.59
Price: $311.79
Sale Price: $296.19
You Save: $118.40 (28.6%)
$296 is already double what it should be,i know exactly what it takes to make the components that make up the clutch,but i've also seen one for another UD engine for 800!!!!
It's this fan clutch off ELEANOR!?!?
Your supose to be able to stop it with you hand 😂😂there not supose to spin on a cold engine they only engage wen rad is hot it work then stop wen rad cools simple the design is so that the fan never spins at same speed of engine other wise you get a big roar first thing on a cold engine you should be able to free wheel it after 2 minits
Really! y just buy a new one
some are really expensive and just lubing it up will fix most of them sometimes
Ok, it will brake later on so, i think sometimes if you do this work its better do it right and that's replacing with a new one and don't have a engine replacement later on when this fan clutch fails again
true
Not everyone can just throw new parts at vehicles. Many people are not that financially well off. We have to save any where we can just to make bills food every month.
Yeah after radiator, water pump and thermostat replacement my dumbass mechanic checks the fan clutch it’s bad
dam that sucks
No
Good info. Never knew about this. Thank you bam6972
thanks for all your help.
Thanks for the info.