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Fan Algorithm Question

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Old Dec 7, 2004 | 12:50 PM
  #1  
fmvette9's Avatar
fmvette9
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Joined: Mar 2003
Posts: 203
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From: Baltimore MD
Default Fan Algorithm Question

From my shop manual I see there are two fan speeds for an 02. Can someone tell me the specific temps the computer turns on and off the fans for each speed. (without the AC on).

Using the stock thermostat, is there a better algorithm?

Thanks
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Old Dec 7, 2004 | 01:31 PM
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shurite44's Avatar
shurite44
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Joined: Sep 2004
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From: Shiloh Ohio
Default here is my info

Hey this comes out of my hypertech book, it says stock C5 settings are:
Fan 1 on/off 227 F/218 F
Fan 2 on/off 235 F/228 F

Edit: oh and it does not say anything about A/C on or off
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Old Dec 7, 2004 | 02:40 PM
  #3  
66ImpalaLT1's Avatar
66ImpalaLT1
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Joined: Apr 2001
Posts: 1,763
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From: Austin TX
Default

The pcm has two fan controls, but they're wired so that both fans run in either low speed or high speed.

When the A/C is on, they are always high speed.
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