6.7 Cummins Fan Clutch Woes - New doesn't Mean Good 

Lots of questions about the air hammer tool. It's this one from Lisle: amzn.to/3bSd7SI

Way back in the day I bought a used Chevy Chevette. After a month or two the starter quit. The mechanic got a rebuilt one and put it in, It worked for about a week. This process repeated 5 times. He told me only rebuilt starters were available. Since the rebuild shop was local he called them. The original owner had sold out about six months before and the new owner was doing what is typical, cutting costs everywhere he can, which included hiring unqualified help. Anyway, my mechanic talked the old owner into overseeing the starter rebuild and lo and behold that starter was still working fine when I sold the car a year later. Shows to go ya, there is no substitute for knowing what you're doing.

Max doesn't say much but his looks and body language make up for it. Great dog.

Chrysler definitely has the worst supply issues that I've seen, had a 2021 Chrysler Pacifica come in last week, the front brake rotors were warped... the local dealer couldn't get brake rotors or pads for it, saying indefinite back order! How can a 2021 have brake parts on indefinite back order when that's one of the current vehicles they're still selling?! It's crazy, got rotors and pads from Napa, wrong size, the aftermarket doesn't even acknowledge that there is a bigger rotor with different pads available....it's crazy. The place I work at normally deals in working on Volvos, and we have yet to have many issues getting genuine parts for any of their models.

Wife-proof. Pure gold Wes. Pure gold. 😁

The electro-viscous fan clutch (yes, that's the name) basically just replaces the little bimetallic doodad that purely mechanical fan clutches have with a solenoid. Internally the clutches still work the same. Solenoid opens up, allowing the silicone fluid to enter in the "friction" area at a controlled rate. "what if we take the worst aspects of a mechanicL fan clutch, and the worst aspects of an electric fan and combine them together" - engineer, somewhere.

No matter how much experience you get, your only one thought away from putting a spanner or wrench across some battery terminals. Thanks for the great content Wes, genuinely look forward to them.

Eric O cracked me up calling the three peddles a _Millenium anti-theft device._ *Thank You* for the videos Wes. They are greatly appreciated. 👍

My dad always yelled at me when I’d put tools on the battery, so I started putting part of a mud flap on them first.. so now I’m older, let just say a few times I have put tools on them, and I was reminded why not to do that. Great content as always

Love the shorting battery shot! You keep it real!

Stick shift never would've stopped my wife. She was as good with a manual as anyone. However, the vise grip parking brake release may have thrown her for a second. Best regards from indiana.

That was some unfortunate timing, Wes. "Yeah, we're fixing the old girl up" just as Mrs Wes is climbing back aboard. 😄

Watching you set the air hammer there earlier in the video, I was thinking "i'll bet that thing doesn't have the little insulating cover on the battery terminal anymore" Always living on the wild side, Wes :D

Had to laugh when you said ‘fix old girl up’. Thought you were in dangerous territory. Nice work.

I had a pick up with a 5 speed manual when I met my wife. “I can’t drive a stick shift , you can teach me later “ she told me.. 25 years later I’m still waiting for the first lesson! Lol

Always a pleasure to watch you work

Hi Wes. There is a simple "magazine" test for fan clutch in my country. Take a magazine(not wife's favorite 😄) roll it and put it into fan when engine's run. If the fan stop or going slow, congratulations, you win a new fan clutch. We also call it viscous clutch, there is something like liquid silicone inside. Sometimes could be repeared with new silicone, but only sometimes, and is temporary. Sorry for mistakes, i didn't practice writing for years.

My favorite channel hands down hope u had a good vacation Wes

Wes, something about your optempo that just completely relaxes me. Keep up the great work! Thanks again!

Thank you for this, you are a pleasure to watch. To few like you anymore, sadly.

Hope you enjoyed your week off Wes, you definitely deserve it. Mick, Northern Ireland 👍🍻

Love the blooper reel. Always excellent content, no pretense - just a normal guy doing his job with a good dose of humor. Proud to wear the t-shirt.

Good job...your skills to diagnose an issue is amazing.

195k and rising! 200k here we come! Keep up with the excellent content and snarkiness!

Glad to have you back Wes 😎

Wes thanks for sharing 👍🏻. Always good to see what fun you're getting into . It's is hard getting parts that are oem. Cummis in are area is the worst at the moment. Have a great 4th of July weekend with the family ✌️ 🇺🇲

Thanks Wes, worth the wait, and glad you took some time off with the family. I watch all of the Ford make you loko vids, because I have fords and he’s walked me through a few shade tree fixes. Hope you have a great 4th weekend, stay safe, and best regards.

Thumbs up for FordTechMechloco, always learning and for our sporadic parts availability networks.

Welcome back! You needed the break I think. You look a lot less stressed and back to your old self. Always great content. Thank You.

Your sense of humor just seems so natural. Keep smiling and you'll make it through. Thanks for your "slice of life" !

It was nice having the mower noise in the background. It felt like I was watching an Eric O video. ;-) Thanks for taking us along through your process Wes. It's greatly appreciated.

I love this channel and Ford Tech Makuloco’s channel-i’ve learned so much from you guys!

Hope you all had a great vacation! You're the best mechanic this side of the Mississippi. Sending love from the Hawkeye state.

Nice work with the repairs Wes! 🙂👍 It's sad to hear how many places just can't get parts in. Hope you're doing well 🔧🔩

Great work Wes, always enjoy your videos

Awesome work Wes. Six speed manual transmission, Wife proof. Priceless

Great work Wes,always enjoy your videos…

Wes is THE MAN!

Hey Wes, loved the blooper at the end with the extension shorting out across the battery terminals. Too funny

My favorite part is Mrs. Wes's face when he is videoing her on the mower... That expression is priceless!!!

Good job Wes. Bad new parts are a serious problem for mechanics. Some manufacturers substitute higher production for quality control.

so im not the only one that checks the battery amperage with a ratchet? another great video! I've been having issue with my own 3500 cummins 6.7 fan clutch so this video was fortuitous ! Happy fourth !

Like the airhammer fan clutch tool, been meaning to buy one, wife looked super enthuased about mowing the grass, lol! Take care

Nice work as usual. I’ve replaced a few of these on tractors. I’ve always heard them referred to as vistronic.

The last clip of the video seems like a normal day for me, sparks and some adult language. Great Video as always. Part Availability and Quality today are not great, even more frustrating is the cost. Appreciate your videos and sharing your time. Thanks

Hi Wes and families welcome back love you’re video very educational how you explain it and always you and your families be safe 🇺🇸🇺🇸

That seat cover on your mower is "pretty" special as well. But seriously, you have a very nice family. Thanks for the vids.

I replaced the whole pulley / fan clutch system on my 5.9L pre-emptively at 225k miles. The replacement clutch quit working in a week. The original clutch is still going strong at 20 years old and 320k miles. Luckily the old 5.9s didnt need fan clutchs, it never got hot unless towing heavy, just no airplane noise.

Battery sparky sparky!! Happy fourth of July Wes!

Nice work Wes - I always learn something g from your videos. Pete

Great diagnostics Wes

Your are so awesome mate! Love what you do and love your family. Good luck bud!

Thanks for the vid Wes and the fireworks show just in time for July 4th. LOL ! Great tip about the A/C and fan clutch though.

I really appreciate your approach. You try not to assume things, though I guess we all do that sometimes. But you are very thorough and try to verify the problem. You also don't load up the parts cannon to fix the problem. That's the sign of a good mechanic. My stepson bought an Ebay starter ,chinesium type. It is a 3 hour job to replace. The starter worked once. That was a very expensive cheap starter.

Nice fix Wes. Exactly right, new doesn't mean good. I just had my transmission rebuilt 3x due to bad parts that were new. 6 hours just to get the tranny out and over 4 just to put it back in. All done 3x.

Good morning Wes. Wow I watch you before musti1 great job like always 👏

Never lay Tools across the Battery! Wes.Thanks for another Great Vidio!

The battery thing... been there, done that. More than once.😆

Thanks for the great content Wes!

The enthusiastic look on the boss lady's face when you said we'll have a new mower soon. 😄😄

Nice work as always Wes

As always great video, and happy 4th of July!

Great bonus footage. A shocking experience!

Great info, experience is the key, awesome repair.

Great work Wes!

Excellent video! Show’s exactly what people have been saying for years: “Dealer Quality” doesn’t mean it’s going to be any better than OEM.

Watching that fan slowly disappear into the the front of the truck! Satisfying!!!

Hey Wes, I worked at "a place" in Morrison that made the electronics for those fan clutches... Our customer was so hard up that they sent us pallets of defective parts so we could destructively disassemble and salvage one sensor to make more... So yeah, the supply chain is rough!

Your little meeting with sparky came to mind prior to showing the blooper.

Really enjoyed your video I miss seeing you on RU-vid

Nice diagnostic job, love the detail, hope you have a good 4th July👍🇮🇪

I’ve done 5 water pumps in the last 2 months. I used Carquest new water pumps on all 5. I’ve had 2 come back leaking. I’ll no longer use aftermarket water pumps if I don’t have to. Luckily enough, neither of them were driven from the timing belt.

Even years ago I fixed a lot of a/c problems with a new fan clutch that did not show up until a/c was used. Now you get the ones like this but also cars with 2 electric cooling fans that one doesn't work but no overheat, but shows up in poor a/c and higher pressures on both low and high sides. Also had one with a near perfectly shaped pyramid of grass, insulation, and twigs with a rat condo on top between the condenser and radiator. Showed up at the start of a/c season, yet this thing blocked 1/3 of the cooling area, extending almost to the top of the radiator from both sides of the bottom.

Just did one on my 07 Express lasted like a month at least I was warmed up when I switched to a hopefully HD one definitely feeling the struggle 👍happy 4th

Wifey’s enthusiasm for her Cub Cadet was palpable. Hahahaha. Good stuff Wes.

Glad to see Pup isnt' limping anymore. The sparking ending was the best.

Wes you are Gem THANKS for the video !!!

Happy 4th of July Wes!

Always very interesting Wes thanks for sharing 🦘👍

Mrs Wes is a good girl, best you keep her. Good job fixing the truck. Many years ago I owned a cab over International with a 8v92GM, it had 4 x 6volt batteries and I did the same thing, it went off with a bang. Hahaha, scared the you know what out of me.

Such interesting videos Wes!

To you and your family have a safe and Happy 4th of July.

You are a life saver! I’m chasing after the same issue.. brand new ac system with ac cycle switch and brand new cooling system. Yet, fan is not in the 0000 range for rpm speed. I’m interested in doing a mechanical swap

Good video. Thank you. Love your wife's pony tail.

Hello from the Netherlands and thanks for the video. Sincerely, Hollandduck

Good job Wes.

Thanks for the video Wes. Give it a decade and half the world will look at you like you have four heads when you ask them where the key is start the vehicle.

Great job Wes, after 10 years, manufacturers don't have to support their products, though I hear after 3 years or so, some claim its old technology 😉. Plenty youngsters can drive a manual here in the UK 🇬🇧, historically fuel has always been expensive, so smaller engine capacity, small engines were not compatible with the old slush 3 speed autoboxes. Newer design of transmissions allow much smaller engines. Team WES landscaping doing a great job, good maintenance contract.

Freaking hate those fans, we have em on a few of our forklifts with volvo engines, the ones we have with fans driven by hydraulic motors however are excellent, they sometimes last over 10k hrs of operation plus they can be reversed to decrease the buildup of crap in the rad. Nice vid as always Wes, hang in there.

Yaaay 🙌🙌 been looking forward to your upload

I just went through the same thing with bad new parts. Replaced a compressor and then it would not take freon when I tried to charge it. Clutch was engaged but it would not pump. Replaced the txv and condenser and blew the lines. No restrictions. Finally ordered a second compressor and it worked like it should have the first time.

The wife looked thrilled when she was waiting for you to finish talking so she could get back to mowing. haha🤣

Just what I needed for my 3rd of July

Sometimes ya just gotta beat the crap outta the Struggle Bus Gremlins and out think them. That's a Wes video in one. Definitely a nice vid to finish off my Sunday evening RU-vid viewing. Thanks Wes and a happy 4th of July to you and your family. It's my Bebita Wife Maria's and I 19th wedding anniversary on the 4th. Fireworks with our anniversary not related to me forgetting it and ending with a know on my head because I forgot. Gee, ya might think I arranged it that way.

Great videos thank you, really appreciate 🙏 👍 your time

Great video!! Thanks Wes!!!

Yay! Now I can 'Watch Wes Work' instead of putting in my truck's water pump! Wes - you've saved me from sweaty toil and now I can drink beer instead of oil!

In my experience anything Chrysler simply loses it's mind throwing codes if the battery voltage drops below 11.9 New doesn't mean good?! Thought this was South Main Auto for a sec

That thing is mint for a 2007, loving owner,especially for a work truck.

I liked that trick with sparks at the end. You should do it more often