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Old 10-20-2002, 01:19 PM   #1
90lxracer
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Default Loud fan...

The fan in my car is really loud. The more throttle the more loud fan noise. Does anyone know what causes this or how i can fix it?
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1990 lx 5.0L 5 spd.
BBk Lt's/BBK o/r x-pipe/2 chamber flows/holley systemax upper intake/holley systemax lower intake/holley systemax heads/Lunati cam/timing chain/fms 1.6 rr's/
pro-m 80mm mass air/ 24# injectors/ 190lbh./fuel pressure regulator/BBK 70mm tb/BBK 70mm egr spcr/fms 3.73 gear/Fluidyne Aluminum Radiator/Ford Racing Water pump/Underdrive pulleys

1997 Chevy Silverado Z71 4x4
6'' Pro-comp triple shock lift / 35x12.5 Pro-comp x-terrains on 15x10 welds / 4.56 gear / hypertech power programmer / Flowmaster 40 series exhaust / 2 12'' Audiobahn subs powered by houston acoustic 900 watt amp / white face gauges
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Old 10-20-2002, 02:08 PM   #2
lx5091
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The clutch inside the fan has seized. Don't drive it and if you do try and keep the RPM's as low as possible or you will seize the bearing in your water pump and need a new water pump too! The clutch is very very simple to fix and at your local parts store. You need a thermal fan clutch, not a single speed clutch.

Simply take off the belt and unbolt the fan at the post. Unbolt the clutch from inside the fan, bolt the new one in and viola!
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Old 10-20-2002, 07:18 PM   #3
90lxracer
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Alright, thanks man.
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1990 lx 5.0L 5 spd.
BBk Lt's/BBK o/r x-pipe/2 chamber flows/holley systemax upper intake/holley systemax lower intake/holley systemax heads/Lunati cam/timing chain/fms 1.6 rr's/
pro-m 80mm mass air/ 24# injectors/ 190lbh./fuel pressure regulator/BBK 70mm tb/BBK 70mm egr spcr/fms 3.73 gear/Fluidyne Aluminum Radiator/Ford Racing Water pump/Underdrive pulleys

1997 Chevy Silverado Z71 4x4
6'' Pro-comp triple shock lift / 35x12.5 Pro-comp x-terrains on 15x10 welds / 4.56 gear / hypertech power programmer / Flowmaster 40 series exhaust / 2 12'' Audiobahn subs powered by houston acoustic 900 watt amp / white face gauges
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Old 10-22-2002, 08:49 AM   #4
mpj76
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Make sure you tighten those bolts on the fan really good. I had them loosen up once. The engine vibration felt in the steering wheel was unbelievable! It destroyed my water pump in one 5 mile trip.
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Old 10-22-2002, 08:59 AM   #5
MattwantsSpeed
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It could be a good time to convert to an electric fan! It's pretty simple.

Matt
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Best to date: 14.331@97.46mph with 14*/stock fan/short belt and a 2.222 60' in 90 degree weather

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