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this fan noise may be the coolant fan doing the job of cooling the radiator when there is no air flow through the radiator as in standing in a line or at lights. IN a drive through line you would have the window down and so the noise came to your attention when the fan cut in. However have it checked out by an accredited repair shop to put your mind at rest.
I doubt the cooling problem is either. The most common reason for running hot at slow speeds is not enough air coming thru the radiator. Either the cooling fan is not coming on, or there is a blockage in the radiator. And the loud noise could be a mount. You may want to get a second opinion before having the repair done.
1. Could be a caught foreign object between A/C (air conditioning) fan and cooling radiator, producing this loud noise. 2. Could be a damaged fan blade, mowing the cooling radiator. 3. Could be a loud noise comming from the fan's electrical motor. 4. Could be a broken off fin (small wing) of the cooling radiator, striking the A/C fan, producing this loud noise.
Electric cooling fan bearing failed and the cooling fan needs to be replaced. Start with inspecting the cooling fan behind the radiator and determine if that is where the noise is coming from. Replace any worn or damaged parts.
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you could change the fan to an electric one and take off the old fan off why bother.....alternatively try soundproofing the bonnet/hood works for me(cheaper)
It may be the thermo fans that are on the car.They cut in and out especially if the air/con is on.The car will have a belt driven fan but the electric thermo fan,will cut in and out as it is needed creating a highspeed fan noise.Hope this is the problem and helps you.
the a/c when running creates a lot of extra heat and needs second fan, if second fan is not working right this will cause overheating, if fan is creating a load noise it is likely bearing is bad and will not spin as fast as it should not cooling. also check that fan it not hitting anything if you describe loud noise i can give better idea
Sonds like the fan to me. Yes, those are available separately. Water pump is internal inside of the timing cover and those are pretty bullet proof. Fan is most likely NG. Not that common. I have replaced only 1 in 12 years with Nissan.
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