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post #1 of 10 Old 07-01-2014, 09:17 AM Thread Starter
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A/c trouble

Anyone having a/c trouble? When my AC is running the blower fan is making a high pitch noise. The higher you turn up the AC the louder it gets. Any advice before I go to the dealer?
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post #2 of 10 Old 07-01-2014, 10:26 AM
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Mine does that when one of the vents is closed and the speed is on high.
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post #3 of 10 Old 07-01-2014, 11:53 AM Thread Starter
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Mine is doing it with all the vents open. Irritating!
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post #4 of 10 Old 07-01-2014, 02:55 PM
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Anything get sucked I to the in cab intake area?

13' CCSB FX4 6.7, 17"MB wheels, Cooper oversized all terrains, Amsoil 15w40 Diesel/Marine oil with Ea Oil Filter.

2013 6.7 Powerstroke F250 XLT Crew Cab 4X4 First Owner. Amsoil OE 15W40 Diesel Motor Oil. MB Wheels and Cooper 34.5" x 12" tires.

SOLD!! 2006 F250 Lariat Crew Cab 4x2 88k miles, 4" Diamond Eye Turbo Back Exhaust, Amsoil 15W40 Synthetic Heavy Duty Diesel and Marine Motor Oil, Ea Amsoil 15k oil filter, Oil Charge Systems Amsoil Bypass Filter, SCT TSX (no custom tunes yet), Sinister Coolant Filter Kit, Zoodad Mod, Custom Diesel EGR Cooler Delete.
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post #5 of 10 Old 07-01-2014, 09:43 PM
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Does it sound like a whizzing sound? Kind of like you are putting a playing card into a fan.

2002 F250 ECLB, XLT, 7.3 PSD, 4X4, Auto, TW 6pos. Tuner, 42,000 original miles, 4" Diamond Eye Stainless Exhaust with 2 mufflers, Britebox, EZ Down tailgate assist, Rear Air Bags, 6.0 trans cooler, Wicked Wheel 2, Corey's HPX, Dieselsite Water pump w/built-in filter, 203 degree thermostat, Max A/C assist valve, Oil drain valve, Non EBV pedestal & Flange, S.S. bellowed up pipes, Dieselsite Lifetime Rad. hoses & Intercooler hoses,

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post #6 of 10 Old 07-20-2014, 06:48 PM
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my 11 does this some times but with mine i turn it up all the way and u can hear the fan on but hardly any air comes out of the vents, when its like this u can hear the fan blowing in the blowerbox but something isnt letting it come out of the vents. but i can kill it for 10-15 minutes and it works like its supposed to like it resets itself

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post #7 of 10 Old 07-21-2014, 04:19 AM
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i to have an issue , loud blower a wine sometimes and what sounds to be a hiss like its leaking but it still cools the cabin
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post #8 of 10 Old 07-21-2014, 04:34 PM
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Quote:
Originally Posted by BEAR1776 View Post
i to have an issue , loud blower a wine sometimes and what sounds to be a hiss like its leaking but it still cools the cabin
yeah my blower box is loud when it happens, so i know the fan is working correctly just something isn't staying open correctly. mine usually happens when i go down bumpy roads for a long period of time.

2011 king ranch f350 cclb 4x4, 6" lift, 20x10 fuel mavericks, 35" toyos, billet grille, ranch hand rear bumper, SCT X4 with PIP tunes, Sinister egr delete, flopro dpf delete pipe

2002 f250 ccsb 4x4
6" pro comp lift kit, 20x10 eagle 064's, 35" trail grapplers, 2007 front clip, Harley Davidson Headlights, Bull nose bumper, Ranch Hand Rear Bumper, dfuser harness, 6637 air filter, straight exhaust, foil delete
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post #9 of 10 Old 07-22-2014, 03:37 AM
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funny thing yesterday it stopped making noise
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post #10 of 10 Old 07-22-2014, 04:42 AM
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I had an issue like that with a 2008 F350 I bought used. The guy who had it before me smoked, and a cigarette wrapper got sucked into the squirrel cage fan in the blower unit. It still worked but made a lot of noise. It drove me NUTS!
I finally figured out how to open up the blower assembly (it was actually easy) and got that little jewel out of there.
Does anyone know if the new trucks are equipped with a cabin air filter? the 08 didn't have one.

2002 F250 ECLB, XLT, 7.3 PSD, 4X4, Auto, TW 6pos. Tuner, 42,000 original miles, 4" Diamond Eye Stainless Exhaust with 2 mufflers, Britebox, EZ Down tailgate assist, Rear Air Bags, 6.0 trans cooler, Wicked Wheel 2, Corey's HPX, Dieselsite Water pump w/built-in filter, 203 degree thermostat, Max A/C assist valve, Oil drain valve, Non EBV pedestal & Flange, S.S. bellowed up pipes, Dieselsite Lifetime Rad. hoses & Intercooler hoses,

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