03 GT over heated 5 days ago! - Mustang Evolution

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Old 07-23-2013, 08:59 AM   #1
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03 GT over heated 5 days ago!

First the weather was 100 degrees. First time it ever over heated. I had the ac at full blast, stuck in traffic. Coolant was leaking out the cap. I touched the cap and it burst open giving me 2nd and 3rd degree burns in my arm.I bought a radiator cap and that is not the problem. I removed the thermostat and did the boiling pot thing and it expanded. So that works. I noticed my radiator fan making a loud noise like its scraping something but the fan only turns on when the AC is on. Im not driving the car so i'm good. The fan is very loud. I checked the fuse its ok. I checked wiring connectors around the radiator to see if they are burnt. They are ok. Need help! Thanks in advance.

---------- Post added at 08:59 AM ---------- Previous post was at 08:57 AM ----------

The fan moves freely when I touch it( of course with the car off! So nothing is touching it.
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Old 07-23-2013, 10:38 AM   #2
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Sounds like the bearings on the fan are going out. You may need a new fan if its making a scraping noise. Another over looked item that causes overheating is the lower radiator hose. It can collapse on itself and not allow flow therefore overheating. Had it happen once and i installed a spring inside the new rad hose. Besides that radiator could be a cause however sounds like the fan is the culprit in this case
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1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.
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Old 07-23-2013, 12:05 PM   #3
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Quote:
Originally Posted by 1996mustang View Post
Sounds like the bearings on the fan are going out. You may need a new fan if its making a scraping noise. Another over looked item that causes overheating is the lower radiator hose. It can collapse on itself and not allow flow therefore overheating. Had it happen once and i installed a spring inside the new rad hose. Besides that radiator could be a cause however sounds like the fan is the culprit in this case
Now that I'm reading your post......... I forgot to mention yesterday when I was checking out the car..... I warmed it up to see if the fan would turn on and I noticed a smell if antifreeze and smoke coming out from around the radiator fan. Around the bottom like you said....hmmmmm I'm going to check it out after work. The car have been siting in the same spot for 5 days with nothing leaking underneath. Lets see!
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