5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

thermostat vs fan switch temp

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Old 12-13-2011, 06:34 PM
  #11  
302darrell
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only if i was smart huh.. ill keep that in mind.
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Old 12-13-2011, 06:51 PM
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fl1a
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You might want to check the condition of your fan motor. Mine seized up early last summer. It was fairly easy to replace.
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Old 12-13-2011, 07:02 PM
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302darrell
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brand new just replaced it 2 days ago.. works great on a toggle switch.
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Old 12-13-2011, 08:44 PM
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Next time turn the air on and see if you have power going to the fan plug.
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Old 12-13-2011, 08:50 PM
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tried that too no worky... i did find a ccrm wiring diagram and im going to find what doesn't have power there.. and kick its A S S.
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Old 12-14-2011, 04:30 PM
  #16  
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ok fan works at 210'f.. but doesnt make a difference if i turn a/c on.. a/c clutch dont engauge either. already replaced ccrm so its not that. maybe a/c pressure switch?
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Old 12-14-2011, 06:23 PM
  #17  
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The a/c system may not be charged fully. If you don't have the gauges,etc you could have it checked.
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Old 12-14-2011, 06:35 PM
  #18  
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yea i was going to do that.. its still 80' here on good ol cental florida! i love these forums.
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Old 12-18-2011, 12:28 PM
  #19  
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Yep, if the freon is low, it will not trigger the compressor clutch or the fan.
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Old 12-18-2011, 01:16 PM
  #20  
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One other thing I would suggest is to look for a Ford shop manual and an ETVM manual. If you are patient, you can find used ones at a reasonable price. They are a great help in troubleshooting and repair. If you intend on keeping your car they are a good investment.
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