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Old 07-10-2011, 10:47 PM   #1
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Question Fan speed

I have a 2004, Freightliner Sprinter, 2500, 140 WB, w/2.7 engine. I have completely insulated the interior and its pretty effective. The AC blows very cold but not enough cfm's. The fan runs so quiet, I keep checking to see if its on High (#4). Does anyone know how to increase the fan speed?
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Old 07-12-2011, 09:50 AM   #2
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Default Re: Fan speed

Not sure of a way to increase the fan speed, however when I run mine on #4 I can hear it very easily. Are you sure its running? You can push in on the center control button to turn on the recirulation, which will increase the cooling effect. (It's a timed function though and will only stay on for a short time)

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Old 07-12-2011, 12:08 PM   #3
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Default Re: Fan speed

You may have a bad resistor which is used to control the fan speed?

Go to this thread for more info. Post #84

Aqua Puttana's Cheap Tricks - Nothin' Fancy Here

There is also a cabin air filter under the hood which may be dirty. A search from the blue bar above will get more info if you use "cabin filter".

DAD NAS (N. Amer. Spec) 2004 140 2500 >330,000+ mi. Arctic Whitewash Brush-tone Grey
2006 Freightliner 140 2500HC >183,000+ mi. Arctic Whitewash (Spotted Snow Leopard accents)
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