Mazda MPV This minivan was among the class leaders with its roomy interior and efficient powertrain.

2003 LX Fan Issue

  #1  
Old 06-08-2019, 05:29 PM
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Location: Hickory
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Default 2003 LX Fan Issue

I just recently bought a 2003 LX that seems to have a fan issue. I have already replaced the fan control module and the problem persists. The fans will come on for a few seconds and then go off for a few seconds then come back on for a few seconds and then off again constantly. I also unplugged the engine coolant temp sensor to see if it would trick it into running the fans full blast but nope, same issue. It is causing the van to run a little warm after driving it around for a while. It usually only gets a little above halfway but never once has it gone more than 3/4s of the way.
 
  #2  
Old 06-08-2019, 10:19 PM
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You are in the wrong section, this the mpv section..
 
  #3  
Old 06-09-2019, 02:17 AM
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Originally Posted by ykkrs View Post
You are in the wrong section, this the mpv section..
Which is exactly why I posted here. Common sense told me that this is where I should ask about issues with my MPV....
 
  #4  
Old 06-13-2019, 02:23 PM
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I have noticed something else with the fans now. The radiator fan actually does come on as intended when the A/C is OFF. If I turn the A/C on then that is when BOTH fans do that constant on and off for a couple seconds at a time. Could the new fan controller already be a dud? Both fans worked right the first day it was installed.

Another thing I noticed is I always seem to lose a little bit of coolant but only to a certain point. Every couple of days I have to top off the overflow tank but it never goes below the bottom of the tank even if I go longer without topping it off. Is it safe to assume the tank has a crack in it? It seems to be a somewhat common issue from my googling. I have already replaced the cap just in case and it still does it.
 
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