Here's How To KEEP YOUR CAR OR TRUCK FROM OVERHEATING!! 

Get a dual row radiator Jimmy. I got mine at Napa for my 96 GMC and it made a huge difference on cooling and the A/C still blows cold. No e-fans needed!

Next 1Road takes the seats out of his 95 and installs wood soda cases to save weight, then re-installs to notice a difference in comfort, then takes out again to notice speed increase, then returns seats once again after noticing difference in stereo. All in fun. .Jim. . .it's your truck, I'm just here for the ride and to poke fun. :-) ;-) :-D

Here's to everyone who screeched every time I suggested that the factory fans would work better over the years 🍻

Wow seriously, going back to stock!? Although I have no GM vehicles your videos are very entertaining. Keep up the good work, love the content!

I have read that the uneven spacing of the OE fan blades is to reduce noise. Something to do with a resonance frequency of sound. I have noticed uneven spacing and size on tire treads for the same reason, for a quieter ride.

Uneven spacing of fan blades is done to reduce fan noise.

Glad you went back. Now you won't have to worry about your fan. You will soon forget you even have one, trust me. If you want an aux fan for the AC put a pusher on the front, that's what I did and it works well.

Good for you Jimmy, keep it simple. I live in a way hotter climate, Texas, and own a 2wd version of your rig that I tow a small Airstream. Bone stock and never had any cooling issues ever. When I think of the money spent on the electric fans, (I think the first ones were a promo), but not the replacement fans, the larger alternator, the big 3 wiring upgrade, etc., I didn't understand the need. Gas mileage difference? Please...it's a beast, won't make a difference. Maybe a new Hayden fan clutch to replace the 25 yr old clutch is only $35. Enjoy watching your vids.

Pleased as punch to know my new fan is in the mail. My new clutch was purchased with my new water pump and serp belt. Can't wait to work on this truck some more!

Agree with you on the factory look and parts. On a different note let look at GM and the notorious 8 speed issues by many. I'm a GM man through and through but there reliably has gone down the dumper. Great video, hope clutch fan works out. Cheers from Sydney, Nova Scotia

On my 1996 diesel suburban, I put an early duramax plastic 9 blade fan and Hayden fan clutch with the same 4 bolt mount. Pulls lots more air and much lighter fan.

Jimmy, I have a small block ford 302 in my 85 grand marquis with AOD auto trans and a big block 460 in my 85 F250 4x4 with BW T-19B Manual trans both use the same fan clutch with different blade counts on the fan. My small block came with a single row radiator with a standard duty clutch and 5 blade fan, my big block came with a 2 row radiator with a heavy duty clutch and 5 blade fan. I upgraded my truck radiator to a 3 row with a severe duty clutch with same fan and added and engine old cooler the truck runs so cool it’s a dramatic difference. My car I upgraded my radiator to similar 3 row also changed the fan to a stock 351W 7 blade fan slotted the mounting holes to accept the same severe duty clutch as the truck and added a trans oil cooler which now the car runs dramatically cooler as well. Both fans and fan clutches are stock Ford parts and easy to find if something fails, the engine oil cooler and trans oil cooler are off the shelf (Hayden coolers) from O’ Reilly’s Auto Parts. Fan clutches on older vehicles are designed usually with a thermatic spring that actuated a viscous clutch to engage the clutch. The duty rating is the slip/off or on cycle, example: the engine is idling at 800 rpm then say a light duty clutch slips at 250 rpm then when engaged runs at engine speed, same goes for a standard clutch that slips at 375 rpm and a heavy duty clutch slips at 500 rpm. The severe clutch doesn’t slip it’s on or off and all of the clutches engage at a set temp similarly. The lower clutches slip to still allow some cooling even then engage to provide highest cooling. The severe clutch stays off until designed temp is reached, after cooling the engine & radiator it then goes off spinning slow enough to stop it by hand causing no drag on the engine with no cooling other than air forced through the radiator by driving. The severe clutch actually saves gas, runs only to cool the radiator & engine then goes off causing no drag on your engine. If your cruising on the highway the fan will not often come on or cycle on/off unless climbing a hill or hauling/pulling a load. The air forced through your grille and radiator should most often be enough to cool your radiator due to standard air to water cooling by force but, when in traffic or hauling/pulling a load the air forced through your radiator isn’t enough so a engine driven fan is needed to pull air through the radiator to cool it then with a thermostat that cycles the engine coolant through the system cools the engine. The fan is a parasitic draw and can be used in a slip config that still cools even when disengaged or on/off config that only cools when engaged. I work on heavy duty trucks (mostly big rigs and similar equipment) which don’t use a slip fan clutch, they all use either a fixed fan or severe duty on/off fan clutch for fuel savings, engine efficiency and emissions reduction. They all run great so I applied that to my 2 old vehicles and I save gas now with better mpg’s, they both run cooler with better thermocycling and the only drawback is when the fan does come on you surely hear it and feel slight power loss only if put putting around town. Otherwise, at any rpm above 1,800 I don’t notice any power loss and the fan isn’t that loud at speeds above 20-30 mph.

If you want a better "stock" fan, look into the 9-blade fans found on the 99 and later gas GMT800 trucks with the mechanical fan There's also 2 different 11-blade fan options which will run very quiet compared to that 5-blade fan you have. One of them is the black 11-blade fans found on the 98 and later GMT400 trucks, or the white/tan 11-blade found on the newer S10, Blazer, and Astro vans (with the 4.3 V6) Each of these different options should bolt right up to your existing clutch since GM kept the same bolt measurements on many of their mechanical fans.

All good things must come to an end great video man

Awesome content and nice video editing. Thanks!

the clutch fan only works when it gets hot. so use a viscous fluid and some use a bi metallic spring. when the clutch is cold it is not fully engaged. if you need more cooling you can get a seven blade fan. it bolts onto the clutch and get a thicker radiator.

'99 Tahoe 291,000 miles....Just had to replace the radiator in it and also put in a new t-stat. Mine runs at about 160/170 even on a hot day with the ac on...you were definitely running warm on some of those trail ride vids. I watched....you are making the right decision imo.

You did the right thing Jim no worries about fan motors 👍👍

There's a spacer oldie cars use to butt up the fan as close to the radiator as possible.Purple ice by Royal Purple works & take out the thermostat bigger hole for better cooling & a better be cool radiator don't worry your truck will get warm either way. Thanks for the tips on alternators and fuse sizes wow melt downs would have never thought that would happen maybe a straight dedicated wire without the fuse.

My 95 Silverado does the same fan roar when cold , but once it’s disengaged it’s all good, engine driven fans are much better I feel, it’s good to always have air circulating around your engine

I'll take reliability over performance in a vehicle I want to go long distances in all honesty. I'll go OEM for as much as possible. If it's coming for a race engine or a engine for performance I'll go with the best name brands that builders use. As for rims though... I would replace though ugly stock ones for some nice bead locker look with a 2" offset! It will totally transform the look and make it more stable when off roading.

I like your GMC : very nice. I'd take advantage of some camping in that ride .

Hey, Mr, 1ROAD I fix my 95 GMC Suburban ABS by cleaning the sensor on the wheel hub. You should make a video of it.

From the factory, the truck is engineered to achieve the optimum compromise between a range of concerns - sales price being an important one. By replacing OEM parts with carefully selected aftermarket ones you are able to reach a different point of compromise, which may more suited to your specific requirements. This of course requires considerable understanding of the systems involved and of the characteristics of the components exchanged.

Keep an eye (ear) on the clutch for a bit. They don't always take kindly to being inoperative for a while, especially If stored improperly. Should make a dull roar at cold for just a couple of blocks, then basically go silent until it gets hot (stop n go with AC on a sunny SoCal day). That you're hearing it on these colder days right now doesn't seem right, unless you were really beating on that thing. Could be a sign that the clutch is getting 'lazy' if you're hearing it all the time. The clutch in my 01 Yukon XL 2500 did the same thing, and when I replaced it it went back to only engaging like I described. Definitely agreed on the other comments re: bigger radiator and/or fan with more blades if you can find something drop-in, especially factory. Check the later years of the GMT400 to see if GM made some upgrades you can bolt in. On my 93 Suburban 2500 (454), I was able to bolt in a fan from a 98-99 , which added a few blades and did make a good difference. Also, there was a small pusher on the 454 trucks that mounts in front of the radiator. It's meant for the oil cooler, but if you're trying to just move a bit more air, might be worth looking into.

TIGHTEN YOUR SURPENTINE BELT TENSIONER PULLY! Notice the bolt coming out and your pulley moving at the 8:25 mark.

Very good choice going back to the factory original, and using only original ACDelco parts when available. Yes, they usually do cost more, and there's a very good reason for that. Way more reliable!

WE all ready told you get get the Heavy duty electric fans (Oem ones) from a PPV/SSV

Summer time (no freeze) run 2 bottles of Water Wetter and about 1 gallon of AF (Green here) with the rest distilled water. You also need to re-route the heater hoses to eliminate the heater. (Intake manifold barb direct to radiator barb.) Noticeable improvement. 454TBI will idle at 180F (180 stat) with AC on and 100F outside. I switch back to 2 gal green AF and no water wetter for the winter. (Good for 0F.) Hook up heater again. I did make a shut-off valve for the heater line but its very heavy Stainless and would need a support that I haven't yet made.

So are you also changing your alternator back to stock?

GM actually had a single electric fan on the outside of the rad blowing in. It mounted on the right side and was an option. I have 1 on all my GMT 400 trucks and are wired to come on when the AC compressor turns on.

There's a reason for the large gap between the fan and radiator. It allows the fan to pull air through a larger amount of condenser and radiator surface area with the shroud in place. The clutch fan will also eat less engine power once it starts to disengage. And remember pulling air through a radiator and condenser at a too high of rate doesn't always mean a cooler running engine especially in summer heat. It has to be at just the right speed for optimal heat exchange efficiency. This can be observed easily with your air conditioning. Get a digital thermometer and put it in the center dash vent and turn the ac on full blast and record the temp once it settles. Then turn the fan speed down one notch and you'll see the air temp start to drop. The slower moving air is able to exchange heat better. The same thing goes for your radiator.

Mechanical fans have worked reliably since the Model T. If you have an inline drivetrain, they’re the simplest and most reliable system.

Revisiting this video. I tried an electric fan setup for a few months. I live where it gets over 100 for 5-6 months of the year. I didn't see any real benefit. The electric fans put a huge drag on the electrical system, that wasn't designed for it. I burned fuses and noticed a vibration at idle. I went back to my clutch fan and haven't thought about it since.

I was getting ready to put electric fans on my 98 GMC Yukon it doesn’t have a heating problem at all I just thought I could get more power and it would be better now I’m watching this video as I watch all of his videos I’m not gonna do it now but my brother did in his 04 Silverado and my other brother did it in his 01 GMC Sierra. They felt they got more power out of the motor

This all comes down to what you use it for. If it was an off-road buggy or didn't have enough airflow I would agree with electric. Also have an electric on the outside or inside as a secondary is not a bad idea either but running a fleet of 94-2002 I never had an issue with the factory stuff. Some of my tow vehicles that I worried about I have either put the next size rad up or switch to a 7 blade fan. There's also something to think of, I'm no scientist but how the fans are shaped, angled and the distance also effects the outcome. The electric fans have a sharper angle but narrow bade to pull air through. I guess with 2 that makes for the 1 and draws across more evenly. With the factory fan, it blades are wider and it sits back farther but at the same time the shroud has enough distance to act like a Venturi causing more air to pull through.

i swapped from the e-fan back to the clutch fan and hated the clutch fan so i went back to the e-fan. but i used a OEM lincoln mark viii fan so i wouldn’t have any failure issues with it since after market fans tend to fail much more frequently

Good job jimmy !

When are you gonna address the ABS light Jim? Mines on also on my 96 k2500

Me an servido mucho tus vídeos a pesar de que no entiendo muy bien. El inglés saludos desde México hoy apenas cambie los pernos de la puertas y me sirvió mucho el vídeo hacer a de eso

Greetings and please forgive me for asking. I live in Zimbabwe and have a rare right hand drive 95 suburban LS and would like to know where I may find a wiring diagram for the park, head, tail, turn and number plate lights? I have a problem with all the lights. Thanking you in advance. Lloyd Searle

The OEM fan being ducted close to the engine gives you some secondary cooling forcing the air around the block.

Good job. Very interesting Stay Safe

Next , time see you put a smaller electric fan on when ac is on.

Hey Jimmy, you'll probably notice that your AC performance at idle on a hot day will suffer a bit. Maybe not. Anyway, I put a severe duty fan clutch on my 2001 Tahoe and installed a GM specific pusher fan. This helped with AC performance at idle and general cooling when it's above 95 degrees outside.

Well, Jimmy - two years ago you had an AC problem using the clutch fan. What changed?

LOL ! I told you this when you changed the fan !If you put in a new clutch fan you should replace the water pump !

The spaces in your fan blades help with noise. Fans without spacing can make a humming noise at higher rpm.

How about fuel consumption? I understand that with electric fans, the efficient use of fuel significantly improves

The random blade spacing is partly to create less of a single tone when spinning to keep it quieter.

Hey 1ROAD can you make a video on how to flush a differential on a 2007 dodge ram 1500 hemi.thanks.

Fins spacing is for a noise management (frequency inconsistency).

Lol. I know exactly what you mean because I've personally done the conversion myself. But I have to say it -when it comes to overheating and potential up-and-coming problems semicolon it's better to go with the factory blade system attached to your water pump. There's really no power loss either.

I’ve never had any overheating issues in my 98. If anything I can get it to reach temp quick enough on a cold morning. Before I got it the previous owner replaced the radiator to a HP radiator and it sucks when I’m trying to warm it up to defrost the windshield

Hey Jimmy and All, recently i bought Lexuz GX460 2022 and as you know it is clutch based cooling fans. I think they are taking alot from the engine power + they are noisy, hence i am thinking of replacing them with a good electrical based cooling fans. What do you think? Dows the clutch fans provide more cooling than the electrical as the engine ramp up more or the electrical fans would be better in all aspects? I know the clutch is more reliable in some points as you are not relying in alternator and so on but i really hate them despite my car is really new, any advice please.

On another note, keep the wiring upgrade.I found that it helps radio noise suppression. Specifically a.m. wine like a bad bridge rectifier makes.

I installed an electric fan on my Sonoma (s-10). It provides a huge power and gas mileage boost in the summer, but when it was a 100 degrees plus with the AC on the water temp would creep above 210 when setting at a drive thru. The voltage would also drop to 13v. I did the big 3 up-grade (correctly) and never had another problem. I was going to go alternator next followed by giving up just like him. I think most people who have problems should have spent more for a better aftermarket fan or found an oversized one from a junkyard. If I was going somewhere remote I would bring the mechanical fan as backup, it only requires one adjustable wrench to install it and the shroud.

I just have my stock electric fans wired to a switch and relay that way I have control of when they come on

The most important part is the fan shroud!! It increases the air flow and speed!

Nice alternator 👌🇺🇸

I love that truck.

you also have space for the Diesel Radiator, that is thicker so more coolent to cool, but if you want more cooling? a higher capasity waterpump, lower rating on the thermostat Higher capasity is no issue Lower rating on the thermotat may cause engine do not get up to operating temperature. causing higer fuel consumtion, but on heavy loads it may recomending but there is room for a single electric fan in front of radiator,,,, Bigger cooler for the transmission...

You should install a pusher fan in front of the condenser

with my 3/4 ton burb for best cooling I replaced the 5 blade to a 9 blade

Just curious, what made you put electric fans on in the first place? My '99 K2500 7.4L has never overheated under any condition so far...knock on wood!

Plasti coating the red GMC emblems in black would look awesome on that truck.

There's a reason why oem parts are usually more expensive than aftermarket parts. Overall, they generally performs better and is more efficient than aftermarkets.

Why is the ABS light on?

Mechanical fans are great, but the space you had without them is something nice to have. I'm sure those electric fans are efficient, but they still draw probably a few horsepower from the alternator to function, mechanical fans are just simple! Really like your idea of a slim electric fan in between the radiator and mechanical fan.

It's hard to beat a properly functioning clutch fan. You'll know when the clutch itself is getting weak because your air conditioning will suffer. You will think the fan clutch is working just fine because the fan is still turning but trust me, if your air conditioning starts to lag, and there's no other problems with the AC system, change the fan clutch. It will make a big difference. Mechanical fan clutches do not last forever.

The best

8:00 Mark. Got em.... You'll thank me.

Sometimes Factory works other times they do not work . My 2009 Chevy Silverado 1500 with 4.3 v6 has dual E fans but they work went the ac is turned on or the temp goes over 230 temp .

Damn, brother, fix your ABS !That would be a useful video !

Keep the fans and upgrade to the two core big block radiator...

If you want better reliability from electric fans get OEM Lincoln Mark viii fans I got dual 18” mark viii and that move F**K ton of air and I mean A LOT!!! One of them alone moves more than TWO high output 16” fans combined! I uploaded a video on my channel showing when I did the clutch fan delete and installed dual 14’s since then I’ve made big changes, soon I’ll install a video of the Dual 18” mark viii fans!

Hola amigo tengo una camioneta y le adapte unos electroventiladores de Silverado la verdad que es muy rentable por la temperatura y creo que se siente más suave el MOTOR Aveces pienso poner la taraba mecánica original que trae por ahorro de consumo eléctrico quisiera saber si habrá una taraba que ayude más que la taraba original para El enfriamiento del motor gracias saludos desde Venezuela

There are wind power testers why didn't you use those to test which one pulls more air

How many miles do you have on your suburban

Also he could put into count Which fan weighs more the less weight he as on and in the car the more power he can get that's what I think about when I have Emergency stuff in my truck

Welcome everyone I have done many experiments and projects to install an additional fan to increase the cooling of the air conditioner and the engine together, but after many experiments a wonderful way has been reached so that the clutch fan is not canceled and an electric fan was installed between the clutch fan and the water cooler and a variable speed control unit was used from FlexLight my car Trailblazer 2009 I hope to share the installation photos, given that the atmosphere in Saudi Arabia exceeds 50 degrees Celsius

So Jimbo, is that PowerMaster alternator coming off now that your took the fans out?? It’s not stock man.

Wow can't believe they can double park in them narrow road

I did the same thing to my 02 2500 hd 6.0 silverado. It got very warm with the aftermarket electric fans i installed. I put the oem clutch fan back on, ran perfectly cool again. I will never put electric fans on a engine designed for a clutch fan again. I remember watching your video when you installed those electric fans. I recall laughing to my self saying he will regret it... well here we are. But hey we live and learn. A note on your factory knows best.. 100% for sure. GM knows best.

You need to get the abs fixed. When the abs light is on it disables it. That caused me to be in a car accident 3 years ago with my 95 2 door yukon

Interesting about the space between the fan blades. What about a pusher fans?

water pump bushings love electric fans. Mechanical fans vibrate and transfer that vibration to the water pump shaft. Properly deployed electric fans are the go-to solution. Ask yourself how many Mercedes or BMW's are running fan clutches these days...

Are you going to sale that Electric fan setup if so please contact me

I done the same thing to my H2 Hummer 04 years back and I had all kan a issues like you did , overheating I put high amp alternator I day I was upset about it and I took everything off and it all factory back and still running good

Why you take it back the electric fan don't work good

Recommend doing some research on how a fan clutch works. There is more to it than just RPM and more air. Just saying.

Well,those electric fans were just blowing air in the whole engine space.While the orinal fan has a shrowd that direct the air on to the engine!Give the electric fans also a shrowd and they are the master in cooling!

If you ever even THINK about putting those electric fans back on: Go to a car show (if you're ever allowed to again), and find someone with a Spal fan and feel the air it pulls. Then go find another with the same size 'brand X' (like yours) fan and feel the airflow. You will never want those 'cheap' fans again.

Surprised you haven't replaced the instrument cluster

Perfect example, 2003-2006 Silverado's. 03-04 clutch fan 05-06 electric fan. They switched for a reason, electric fans cool better. All the same truck E fans > Clutch fan.

Could have gone with a circuit breaker to replace the fuses for no fuse failure

I had a 1978 Ford Granada that some stupid engineers designed. The two cylinders under the carb got a rich mixture and the 4 outside cylinders got a lean mixture. At 60,000 miles, the head was so warped it needed to be ground down. So keeping things to factory are not the best. Those factory guys don't care what is best, just what is cheapest. My 2015 RAM has such thin steel on the roof that pecans dropping from trees dent it! With two electric fans, one going out would not be a problem unless you were going up a good size hill. Also, you don't need the either fan at 50 mph or higher.

Turn the air cleaner lid upside-down and you will get your 🐎power back. That's how I ran my 1993 c1500 pickup.

Fan clutches are good for gas mileage. But when they fall, it can damage the radiator. Electrics OK, but nothing compared to direct drive. Less parts less breakage. But then we’re back to fuel economy.

What you can do to make it better is buying a fan with more blades to draw more air through therefore making the engine work less to cool things down.