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400 04 sportsman overheated

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Old Dec 9, 2008 | 12:31 PM
  #1  
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Default 400 04 sportsman overheated

so...it overheated while plowing yesterday.....didnt [i origianly posted did ] hear the fan going.....where should i start?
thanks
p
 
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Old Dec 9, 2008 | 12:45 PM
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Default 400 04 sportsman overheated

check ALL fluid levels.

Ensure the radiator is clean (if liquid cooled or with an oil cooler) and free of debris.
 
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Old Dec 9, 2008 | 02:03 PM
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Default 400 04 sportsman overheated

fluid levels were fine before it over heated......but i made mistake in the original post as i ment to say that i could not hear the fan going.....maybe it has ice or snow in it?
anyone no where to start testing to see if the fan works?
 
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Old Dec 10, 2008 | 01:09 PM
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Default 400 04 sportsman overheated

bump!
 
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Old Dec 10, 2008 | 07:05 PM
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Default 400 04 sportsman overheated

Non ECM model

The fan switch is on the bottom right rear of the radiator. The wires run straight up the side to the top. It's a 2 pin connector. jump those two wires. Fan should turn on(key on of course) If not, spin it by hand-is it smooth during rotation? Locked up?
Check the switch too, they were known to break wires.

ECM model

Fan is turned on by the thermal sensor on the left side of the cylinder head sending a signal to the ecm. It's a 2 wire connector on a sensor threaded into the head. It's an ohm test to diagnose it. This info is out of a 2005 manual, but i BELIEVE it's the same. Ask Old Polaris Tech maybe he could look it up for you, he's still at a dealership.

I believe this 2nd part is correct, but i quit the dealership before we saw to many heating issues(other than ECM's) Someone correct me if I'm wrong.
 
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Old Dec 10, 2008 | 08:35 PM
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Default 400 04 sportsman overheated

k....Im going to try and pull it apart tomorrow after it stops snowing. Thanks alot for the info.
 
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