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#1 |
Registered Member
Join Date: Apr 2002
Location: Kingston, Ontario
Posts: 351
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![]() this is kinda strange and I feel silly asking about it here but I have no idea.
So, the under hood noise started getting louder. Sounds like an industrial fan blowing alot of air. It is the cooling fan. The clutch was seized so I figured this was my problem so I replaced that and it is still doing it. I have taken the fan off and ran the engine with all other accessories running and the noise goes away so definatly has something to do with the fan. The actual fan blades look good, no cracks, chips, nothing. Why would it be making so much noise? At idle it's not too loud but anything over 2500 RPM and it sounds like I'm in a wind tunnel thanks guys
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![]() '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care. |
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#2 |
Registered Member
Join Date: Apr 2002
Location: Kingston, Ontario
Posts: 351
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![]() I've had the car for about 2 years and just yesterday it started doing this. I have not done or changed anything lately.
__________________
![]() '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care. |
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#3 |
Registered Member
Join Date: Oct 1999
Location: New Mexico
Posts: 488
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![]() Is the new clutch a heavy duty clutch? I know I bought the heavy duty fan and heavy duty clutch, and the first day I drove it, you KNEW air was being moved through the radiator. That had to be the loudest fan setup I have ever heard. I don't even notice it now, but I know its still loud. Just a thought.
Chris
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1987 LX, Best times: 13.47 @ 102.49, 1.80 60ft 6900' DA |
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#4 |
Registered Member
Join Date: Apr 2002
Location: Kingston, Ontario
Posts: 351
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![]() nope, it is the regular one. They had the heavy duty one but I didn't think I needed it.
I don't think it is hurting anything but it is kinda annoying. It is now in competition with the offroad H-pipe and dynomax catback for the noise heard in the cockpit. Personally I would rather hear exhaust over engine noise Thanks for the reply, anyone else have any ideas for something I could do?
__________________
![]() '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care. |
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#5 |
Registered Member
Join Date: Jan 2002
Location: Mt. Prospect,IL
Posts: 474
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![]() mine was really loud then turned quiet, took awhile i think they kinda need to break in....
later
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87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113 |
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#6 |
Registered Member
Join Date: Apr 2002
Location: Kingston, Ontario
Posts: 351
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![]() alright, I guess I'll leave it for a while and see what happens
I was expecting more of a difference between the seized one and the new one
__________________
![]() '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care. |
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#7 |
Registered Member
Join Date: Feb 2000
Location: Flemington, NJ USA
Posts: 166
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![]() Once the thermostat in the clutch senses the temp increasing, the viscous fluid in your fan clutch starts to drive the fan faster, similarly to the way a torque converter drives a transmission as it approaches lockup. The hotter it gets, the more significant the fan speed becomes and the main purpose the clutch holds on a very hot day is to limit fan speed by slipping as RPMs increase. When moving that much air, as the factory mech. fan and shroud is no slouch, you will have noise. I am running the flex a lite 175, but @ 2300 CFM of air capacity, that is clearly audible when running as well. Get a blower with straight cut gears and that should help your exhaust drown out the noise!
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