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HVAC Random Fan Speed & Temperature

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Old 10-12-2012, 06:57 PM   #1
MX71
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Default HVAC Random Fan Speed & Temperature

I'm experiencing random fan speed and temperatures on my HVAC system. The truck is a 2006 F150 SuperCrew XLT Lariat w/5.4L Auto Climate Control System.
Does this sound like a sensor gone bad? Any idea where to start?

Thanks!
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Old 10-13-2012, 10:38 PM   #2
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Subscribing... I have random fan speed sometimes. I would like to know the solution also.
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Old 10-14-2012, 08:33 AM   #3
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Run the self test...

http://www.ford-trucks.com/forums/986532-2008-eatc-self-test.html

and see if anything (code) pops up.
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Old 10-15-2012, 10:12 AM   #4
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Got a code 13 42 on mine. Trying to find out what that means exactly.
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Old 10-16-2012, 07:22 AM   #5
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http://www.supermotors.net/clubs/10t...c-heat-control

I'm not a HVAC guy...
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