There are many reasons why your GPU fans might not be spinning. Basic operation and temperature control are often the roots of the problem and nothing to worry about. However, some issues could need to be addressed. For example: The GPU isn’t hot enough for the fans to turn on yet.
Full Answer
Why does my graphics card fan stop spinning?
A bad or faulty driver is also a possibility that can cause your graphics card fan to stop spinning or make it behave in a strange way. So, if you are facing this problem just after installing a newer driver or another version of the driver then you must roll back to the older driver.
Why won’t my brake lights turn off on my Mk4?
This is the most updated version, so if your brake lights either won’t come on, won’t turn off, or you can’t get your automatic MK4 out of park, it’s likely the culprit. A simple replacement MK4 brake light switch is all you need.
What kind of problems do Mk4s have?
Brake services, fluid services, timing belt, drive belts, filters, paint issues, interior deterioration, and all kinds of other problems are common to old cars. Just know you’re likely getting into a project of one kind or another with a MK4.
What can cause a radiator fan not to spin?
The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.
How do you fix a car fan that doesn't spin?
0:182:45How to Repair a Cooling Fan in Your Car - YouTubeYouTubeStart of suggested clipEnd of suggested clipThey'll just run backwards you won't hurt the motor. And the motors working so the fan motor is okayMoreThey'll just run backwards you won't hurt the motor. And the motors working so the fan motor is okay if the motor didn't come on it's a simple fix you just need to replace the motor.
What can cause my fan to stop working?
This could be because the circuit breaker has tripped or is off. Check your panel to confirm this. If the circuit breaker works fine, it could be a problem with loose wiring and connections. Your ceiling fan could also stop working due to internal defects namely shot ball bearings or an overheated motor.
How do you test a VW fan switch?
5:299:25vw Golf mk4 fan switch check climatronic fan check guideYouTubeStart of suggested clipEnd of suggested clipLevel one two three and what you need to do to check the low speed operation is join number one toMoreLevel one two three and what you need to do to check the low speed operation is join number one to number two or I should say the top one to the one that's on my right-hand.
How can you tell if a fan relay is bad?
Keep a lookout for the following bad cooling fan relay symptoms:The engine runs hot or overheats. ... The cooling fans don't work. ... The cooling fans keep running. ... Warning lights. ... Poor air conditioning performance. ... Swapping Relays. ... Measuring the Relay Coil's Resistance. ... Listening for Noises.More items...•
What are the symptoms of a failing thermostat?
Thermostat failure symptoms that you should knowHigh temperature readings. The main symptoms of a failing thermostat are related to engine overheating. ... Erratic changes in temperature. ... Leaking coolant. ... Increased fuel consumption. ... Unusual noises.
Why is my fan humming but not turning?
So, what causes the motor to hum? The first step in fixing a ceiling fan that hums but won't turn is to check your circuit breaker as well as the switch that controls the fan. After that, try manually rotating the blades and if they don't spin, then you know you have a problem with the ball bearings.
What sensor controls the radiator fan?
coolant temperature sensorOn most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor.
Are radiator fans supposed to spin?
Your radiator fan should kick in at about 200 degrees Fahrenheit.
How do you test a VW fan?
1:323:24volkswagen jetta fan testing - YouTubeYouTubeStart of suggested clipEnd of suggested clipThis Center one with the white line is gonna be your low speed. And the red with the black line isMoreThis Center one with the white line is gonna be your low speed. And the red with the black line is your high speed.
How do you test a radiator fan on a VW?
0:193:17VW A1 A2, A3, A4: Radiator fan(s) quick check. - YouTubeYouTubeStart of suggested clipEnd of suggested clipTake a metal paper clip. And you touch your power to one of the other plans. Let me shoot at lowMoreTake a metal paper clip. And you touch your power to one of the other plans. Let me shoot at low speed.
How do I manually turn on my radiator fan?
0:155:42Installing a Manual Fan Switch for Electric Radiator Fans - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow any car that has an electric radiator fan can be set up with a switch now the idea is to use theMoreNow any car that has an electric radiator fan can be set up with a switch now the idea is to use the switch to ground out one of the pins on the fan control relay.
Can I drive my car if the fan is not working?
Yes, you can drive your car without a radiator fan, but you never should. Your vehicle's cooling system is crucial to its performance, and every time your engine overheats, you cause damage.
What are the common problems of an electric fan?
From non-spinning blades, poor lubrication, and to a noisy fan, electric fans have very common problems that you can fix yourself. Repairing an electric fan may be hard at first look especially if the problem is rooted from the motor or if any cleaning does not do the job.
Collie Forum Junkie
This is a brief summary i have put together after 15 mins of doing searches. Hope its useful to all other mk4 owners and prospective owners.. Rear beam bushes, they fail regularly at relativley low miles replace with new ones. Funny noise on start up.
DCDUB616 New Member
Hi there, Could u elaborate abit about the dodgy window operation please. My drivers side window is abit dodgy, goes down fine but dont go up properly without some HELP.
ben-sears89 New Member
hi there, im new to the site, and i was hoping someone could help me with my problem.
Mrrwest New Member
Hi, i have 1999 mk 4 golf 1.8t, when i put my foot down it doesnt pick up, really struggles, like theres a blockage or something. But if i feather the accelerater the speed does pick up. Any ideas before the local garage rapes me of the money i dont have? Cheers
ljtennet New Member
My golf seems to be gudering with little throttle (crawling) and idea what this could be? It's a 1.8t aum
Danallkins Forum Member
Hi, i have 1999 mk 4 golf 1.8t, when i put my foot down it doesnt pick up, really struggles, like theres a blockage or something. But if i feather the accelerater the speed does pick up. Any ideas before the local garage rapes me of the money i dont have? Cheers
Danallkins Forum Member
My golf seems to be gudering with little throttle (crawling) and idea what this could be? It's a 1.8t aum
What does a P0420 code mean on a MK4?
Generally, you’ll see that P0420 code and a CEL illuminated that indicates your catalyst efficiency is below the threshold. Basically, that means your catalytic converter isn’t converting enough of the harmful gasses in your exhaust to less harmful ones and your post-cat o2 sensor is picking up higher than normal readings. Since these cars were equipped with catalytic converters, it is illegal to just straight pipe it. You’ll have to fork over the money to replace it, which isn’t cheap. If you are looking at a MK4 and it has the dreaded CEL and P0420 code, you’re looking at a big chunk of the purchase price to replace it. We advise replacing it with an OEM MK4 catalytic converter, which makes this repair quite expensive, but you won’t have to do it twice. Aftermarket and universal versions generally don’t do their job well enough to clear that CEL or require a software remap, so you should save yourself the headache and just do it right the first time.
What is the brake light switch on a MK4?
The brake light switch is another inconvenience, as this switch tells your brake lights when to illuminate once you’ve hit that middle pedal. There were so many instances of brake light switch failures from an early point in the MK4’s introduction that multiple recalls were issued. The original switch was exchanged for a purple switch, which also failed, and then finally with a green colored switch. This is the most updated version, so if your brake lights either won’t come on, won’t turn off, or you can’t get your automatic MK4 out of park, it’s likely the culprit. A simple replacement MK4 brake light switch is all you need.
What are the problems with the MK4 window regulators?
This issue was generally fixed under warranty, but that doesn’t mean it’s fixed forever. Common problems were the plastic clips that hold the window glass on its track, which would break or crack, and cause the window to not function properly. They are easily replaced, but you should check all your windows if you have some fail. If some go, the others aren’t far behind.
What are the issues with the MK4?
There are all kinds of other issues that aren’t specific to the MK4 platform you should prepare for and address, but it won’t be anything out of the ordinary. Brake services, fluid services, timing belt, drive belts, filters, paint issues, interior deterioration, and all kinds of other problems are common to old cars.
What is the MK4?
Volkswagen MK4 Common Problems. The MK4 platform is one of the best-selling VW models of all time, especially if you include all the possible variants. The Jetta, Beetle, and Golf all shared the MK4 platform from 1998-2005 (give or take, some versions started later, others ended later). With several engine options, layouts, ...
Does the MK4 have gremlins?
Like many European cars from this period, the MK4 platform suffers from electrical gremlins. While not every MK4 will have them , the ones that do can become diagnostic nightmares. Electrical issues stem from the soy-based insulation casing around wiring, which is a favorite snack for rodents.
Is the MK4 still relevant?
Even today, the MK4 is still considered relevant among enthusiasts, especially in the GTI trim or R32 trim. Those offered significant performance increases, but all models suffer some common problems buyers’ should know before they set out to grab one for themselves. Today, we’re going to address the common Volkswagen MK4 problems and failures.
How do MKIV fans work?
The mkiv fans have two speeds.... low and high. Both fans always work in tandem. The resistor pack inside the fans will burn out and the fans will stop working on low speed but will still work on high speed when the engine gets too warm. The a/c button turns the fans on LOW only, and the fans will still work on high if the engine temperature gets too hot, above 107C actually, or 224F. The only way to fix this is to replace the defective fan. Many times both are defective but the driver won't know until both fans stop working or only one fan is working and it starts to overheat in summer traffic.
Do MKIV fans work on high or low speed?
nitroscope8 said: The mkiv fans have two speeds.... low and high. Both fans always work in tandem. The resistor pack inside the fans will burn out and the fans will stop working on low speed but will still work on high speed when the engine gets too warm.
Why Are My GPU Fans Not Spinning?
There are many reasons why your GPU fans might not be spinning. Basic operation and temperature control are often the roots of the problem and nothing to worry about. However, some issues could need to be addressed. For example:
Is it Actually Your Fans that need fixes?
Before you go out and start the fixes, we need to make sure if it’s actually your fans that’s the culprit. Or, see if there are any other underlying problems. There are a few different ways that you may notice a problem with your GPU fans.
Basic GPU Checkup Steps
It’s a good idea to keep up with the maintenance on your GPU, even when it’s working correctly. Doing so will help you avoid problems with your graphics card. Stopping them before they start is preferable to having to fix issues when they arise.
Troubleshooting
Here are few troubleshooting ideas for you to try when your GPU fans don’t seem to be functioning correctly. Knowing where the problem started can help you decide where to begin your troubleshooting.
Solutions for Fan Malfunction
If your fans aren’t working at all, there are a few steps you can take to get them going again. You don’t always need a new GPU when the fans fail.
What is the power connector on a GPU?
The power connector can be 2-pin, 3-pin or even 4-pin, depending on the graphics card manufacturer . On the connector, the red or yellow wire is positive and the black is negative. Now take a normal 12V DC adapter and connect its positive and negative wire to the positive and negative ones of the GPU fan connector.
Why is my GPU not showing?
Also, try using another display cable in another port. If then also, the display is not showing then you might have a faulty GPU with some component damage (resistor, capacitor, VRM, etc.) or it could be due to a faulty GPU BIOS. In case of component damage, you have to get it repaired from the service center or from a good third-party repair shop. If the card is under warranty, the get it replaced. On the other hand, if the problem is with the VGA BIOS, then try re-flashing it or updating it to a newer one.
What is the problem with a 6 pin/8 pin PCIe connector?
Sometimes, a loose or bad 6-pin/8-pin PCIe power connector can also be the cause of this problem.
Why is my GPU fan not spinning?
The most common cause of GPU fan not spinning problem is because of the faulty fan or fan failure. Here, the fan has gone kaput and the only solution to fix it is by replacing with another similar fan. You have to buy the fan that has the same dimensions, voltage rating, mounting holes, and connector, otherwise, ...
How to clean a fan that is spinning slowly?
Here, the first thing to do is to clean the fan using an electric air duster and then by using a brush. If the fan is making loud annoying noises, then you can lubricate its bearing slightly with light motor oil or sewing machine oil. Do not use WD-40 for lubrication because it will not do any good. However, my personal recommendation would be to replace the noisy fan that is spinning slow or making noise because of its worn-out bearing.
Why is my graphics card fan not spinning?
Some of them are related to hardware or software fault, and some of them can be due to some misunderstanding by the users.
Can you use 12V to power a GPU fan?
Note: You can find the fan voltage written on the fan itself. Most of the GPU fans work with 12V only. Also, you can use any 12V DC source to power the fan for checking purposes.