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I just replaced the clutch fan on my 2004 gmc envoy

I just replaced the clutch fan on my 2004 gmc envoy

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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto. It's the same part and similar process on the regular Envoys from to The items that you'll need include a new radiator from 1AAuto. Start off by loosening this hose clamp and this hose clamp, and then remove this T30 bolt up here. We'll just fast-forward as Mike does that. Now pull this hose free. Then lift that air intake hose up and out.

Next, you want to locate your serpentine belt diagram, which is located right here on the shroud. You just want to refer to this as you're trying to put the belt back in place, and make sure that you have one of these before messing with the belt. Then, using a 15mm socket and ratchet or a 15mm wrench with another wrench for extra leverage, just push down on the tensioner.

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Then pull the belt up and over that center pulley, and carefully relieve the tension on the tensioner. Now pull your serpentine belt up and out.

Using a 13mm wrench or a 13mm socket and ratchet, you want to just loosen up these four 13mm bolts on the fan. What you want to do is you want to loosen them up enough that you can manipulate them by hand.

Loosen them and then just tighten them back in by hand, so loosen them up. Again, make sure they move by hand and then just finger tighten them back into place. This is a fan clutch pulley wrench, and it just has a couple of studs at different angles. We're going to use the narrow ones and the pulley that has four holes in it.The fan clutch is a cooling system component that controls the operation of the engine cooling fans.

While many newer vehicles now use electric cooling fans to keep the engine cool, many older vehicles used a mechanical fan clutch to control the fans. The fan clutch is a thermostatic device, which means it operates based off temperature, and is usually mounted on the water pump, or another belt driven pulley.

The fan clutch will spin loosely until the temperature reaches a certain level, at which point the fan clutch will fully engage so that the fan can work at maximum efficiency. As the fan clutch is a cooling system component, any issues with it can cause overheating and other issues. Usually a bad or failing fan clutch will produce a few symptoms that can alert the driver of a potential issue.

One of the first symptoms that is commonly associated with a bad or failing fan clutch is an overheating engine. The fan clutch is responsible for controlling the operation of the cooling fans. A bad fan clutch may not engage properly or at all, and as a result, will disable the fans or prevent them from working at maximum efficiency.

This may result in the engine overheating, which will lead to more serious issues if left unattended. Another common symptom of a faulty fan clutch is excessively loud cooling fans. If the fan clutch gets stuck in the engaged position, which is not uncommon, it will cause the fans to fully engage even when it is not desirable for them to be on. This may result in an excessively loud engine from the fan blowing at full speed.

The sound may be easily audible and present at all times when the engine is cold and hot. 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 decrease in performance. A stuck fan clutch will cause excessive, unnecessary drag on the engine, which can cause a drop in poweraccelerationand fuel efficiencysometimes to a quite noticeable degree.

As the fan clutch is one of the main cooling system components, it is very important to the proper operation of the engine. When it fails, the engine can be put at risk of serious damage due to overheating.

If your vehicle is displaying any of the symptoms above, or you suspect that your fan clutch may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the car will need a fan clutch replacement. The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection.

Our certified mobile mechanics perform over services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools.

Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. Vehicle Engine Cooling Inspection Cost. Service Location. Vehicle overheating One of the first symptoms that is commonly associated with a bad or failing fan clutch is an overheating engine. Excessively loud cooling fans Another common symptom of a faulty fan clutch is excessively loud cooling fans.

Decrease in power, acceleration, and fuel efficiency A decrease in performance is another symptom of a bad or failing fan clutch.

Home Articles. The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details.What a poorly made vehicle! Soon after that the "service engine soon" lit up! As I was driving it to the dealer the fan clutch broke off damaging other parts and disabling the vehicle. Do not buy this junk! The fan began to run at all times sounding like I was about to take flight. Loud and very annoying, causes the service engine light to come on.

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It also causes the truck to run too cool. Replaced the fan clutches and it fixed the problem temporaily. I have replaced the clutches 3 times along with the water pump and it is roaring again!

I need help finding the real solution to the problem. If you have a for-profit service, contact us.

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Ask your GMC dealer. Most Common Solutions: replaced electronic fan clutch 2 reports not sure 1 reports. Find something helpful? Spread the word. Share on Facebook Retweet this page Email this page.

Helpful websites No one has added a helpful site for this Envoy problem yet. Be the first! Find a good GMC mechanic Read reviews of repair shops in your area. Enter your zip code: A free service from CarTalk. Send Comment Add Complaint. Search CarComplaints. Not what you are looking for? Search for something else:.A fan clutch is designed to cool the engine when it becomes too hot and on the verge of overheating.

These clutches are featured on forward facing engine's only and are used in place of an electric fan though they do the same job.

Attached to the engine's water pump a fan clutch can go bad in one of two ways. First the and most common way a fan clutch can fail is the clutch shoe inside the unit can get stuck and not disengage causing the fan to lock up on the input shaft which will permanently engage the cooling fan which will be accompanied by a noticeable roaring sound.

When this happens people like to describe this problem as "it sounds like a jet airplane is taking off next me". This condition will not make your engine overheat but it will decrease your gas mileage and reduce engine power.

To check for this problem open your hood with the engine off. Grasp the fan blade and try to move it. If the fan blade will not move the fan clutch is locked up and replacement is required. The second problem a fan clutch can have is the opposite problem.

The clutch fails to engage no matter how hot the engine becomes. This condition will cause the engine to overheat because the fan fails to pull the necessary air through the radiator that cools the engine by the use of the systems coolant. This problem can be detected by listening to the fan while the engine is running and hot, you should be able to hear the fan engage. If you do not hear the fan start working shut the engine off and open the hood. Try to spin the fan clutch it should give a fair amount of resistance.

If the fan just freewheels the clutch inside the fan has gone bad and should be replaced to prevent engine damage due to overheating. This problem will also degrade the operation of the air conditioner as well due to the lack of air being pulled through the condenser of the system. If you have any fan clutch questions? Please visit our forum. If you need car repair adviceplease ask our community of mechanics who are happy to help. Home Articles Fan Clutch Symptoms. Symptoms of a Bad Fan Clutch.Forums New posts Search forums.

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Good vs Locked Fan Clutch

Members Registered members Current visitors. Site Rules. Log in Register. Search titles only. Search Advanced search…. New posts. Search forums. Log in. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Overheating when AC is on. Thread starter Vonhendon Start date Jun 28, Vonhendon Well-Known Member. Envoy run's one tick below deg. Had a shop look at it more then once last year and they changed my T Stat to one that I didn't want.

They said it could be my Rad. At highway speed's it does come down a little but in traffic I get very nerve's so I plan on changing the Rad. RayVoy Well-Known Member. The AC blows cold in the cabin, but produces heat under the hood. The condenser is mounted in front of the radiator and is cooled by the same air flowing through the radiator. When AC is off, the air hitting the rad is outside air temp, when the AC is on, the air hitting the rad has been warmed by the condenser and is now much hotter than the outside air.

This is not usually a problem, if you have good air flow. You may be able to blow the debris out of the rad by blowing compressed air from the engine side. The fan clutch may be shot, or the temp sensor that locks the fan clutch may not be working correctly. Sparky Moderator.

Fan Running At All Times

Unless it springs a leak it doesn't need replaced, but you might have some blocked passages. Run some radiator flush through it.APA style: 10 Failed Doomsday Predictions. While every effort has been made to follow citation style rules, there may be some discrepancies. If you've recently changed to a new device, your 'SwiftKey Stats' will be empty. These don't transfer across devices, and could cause you to wrongly assume your predictions have disappeared.

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i just replaced the clutch fan on my 2004 gmc envoy

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i just replaced the clutch fan on my 2004 gmc envoy

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i just replaced the clutch fan on my 2004 gmc envoy

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