How do i fix the fans that don't work, and cause it to overheat?

Is the fan working? You will need to replace your fan if it's not functioning. And don't use it in that condition, you risk damaging it everytime it overheats

Thermostat stuck take it out. leave it out .. try it ...then
put in a new one...or water pump weak. Also try wiring the auxiliary fan and any other fans so that anytime the vehicles motor is ON the fans are ON don't depend on a sensor on a Mitsubishi of that age...fans that don't come on soon enough, or stay on long enough, or turn on at all without letting you know until the motor overheats..... , are the leading cause of death for vehicles~!! lol

I would look at the owners manual and make sure that it calls for a 40 amp fuse. Maybe it's not the right size. But you don't want to go too big because if it is shorting out in the wiring it could cause a fire. Make sure you have the right size fuse if not, there is a short in the wiring or in the fan motor itself.

• Clogged fan

The main device responsible for maintaining a constant temperature of your video card is the fan present in the processor. If this isn't functioning efficiently it's quite obvious that it would result in your video card overheating. If you don't regularly clean your computer, it could be highly likely that your fan is clogged with dust.

This is one of the simplest causes of your video card overheating which can be fixed by simply cleaning your fan, preferably using a blower.

• Broken fan

A follow up of the previous point, in some cases your fan maybe malfunctioning or stopped working altogether. This could simply be diagnosed by switching on your computer with its cover open and checking if the fan is functioning. If it doesn't happen to be working, you have your answer.

• Overclocking

Pushing your CPU to its limits by overclocking can cause your video card to overheat. This can seem fairly obvious too as if you find your video card overheating and if you've recently overclocked your CPU, it would explain it.

• Faulty Drivers

This is a rare cause, but depending on your video card's brand a badly developed driver could also cause your video card to overheat. If you use an unusual video card with questionable reputation this could be the issue.

• Inefficient Airflow

While your fan maybe perfectly in tact and working, the location of your fan also matters. If there isn't sufficient air flow to your video card it can also cause it to overheat.

Those are typically the 5 main reasons to your video card overheating. If you have any other points in your mind, feel free to share them below.

OK, you have addressed the first possibility. There are a few more, each progressively more expensive to fix. First, are the radiator electric cooling fans operating? If you find the vehicle runs ok on the highway, but overheats around town in stop-and-go traffic, it could be that the fans are not running. Quick check for the fans - with the ignition on (the engine doesn't need to be running), move the cooling control to the A/C position. If the fans come on, they are good, but you could still have a fan-related cooling problem. If the fans don't work, you have a problem. If the fans worked, the car runs fine at highway speed but not in town, then suspect the coolant sensor that engages the fans. If the fans work and the car overheats in all conditions, then a system blockage is possible. Blockages occur usually one of two ways: Radiator rust/corrosion, and collapsed radiator hoses. Radiator corrosion will require radiator replacement; if it is blocked badly enough to overheat, flushing it is a waste of effort, and could cause more problems with all the **** you circulate into the engine. If the system is low on water (air in system) it can rise to the top radiator hose and cause it to collapse partially or fully, restricting flow. Some engines have water jackets that extend higher than the radiator cap, so they can trap air. These cars have bleeder ports at these locations to remove to trapped air. Check to see if that is the problem.

It may be your thermostat, if it's not opening up to allow coolant

to circulate, that would cause the engine to overheat. good luck!

no , a faulty thermostat will not cause the engine to stall as such, but if the aux. fan is not working it will cause the engine to overheat if idling for long period, you don't need the fan to be working if you are traveling more than 40-50 MPH.....cheers .....hope this helps

Hey Marsh2Man,


It's not your fans that's causing the problem. It's the XBOX itself. The Xboxes generally overheat and this has been a big problem for Microsoft. Alot of companies are actually reflowing these system, reheating the solder under the chips allowing them to connect back down to the points on the board.


You will need your system reflowed. Contact a repair shop.

I opened my receiver up and found the fan not working. So I took the front of the unit off so that I could access the fan. It looked brand new so I don't think it ever worked. I checked the fan connection with a volt meter and found 12 v only the fan still would not run. I took the red wire coming from the fan and put it to ground. Cut the yellow wire off the fan. and the black wire to the middle of the connector on board. there the fan worked. now I have a working fan. maybe this could be your fix just don't lose the screws and remember how this comes apart. I know the fan works not so sure it fixes problem but at least the fan is working so thats a start. At least it won't overheat. hope this helps