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Joined: Nov 2015
Posts: 19,204
Campfire Ranger
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OP
Campfire Ranger
Joined: Nov 2015
Posts: 19,204 |
I have a 2013 Polaris Ranger 500 EFI UTV. A while back I happened to notice that the electric cooling fan had kicked on and was running constantly. I checked my radiator, and it was low on anti-freeze. I topped it off and checked it again a few days later and it was low again. I have checked the radiator and hoses for leaks, and have found nothing. I checked the oil and it's showing some foam in the oil reservoir, but the oil does not seem to be milky. I can't figure this one out, and am wondering if any of you have an idea as to what the problem is.
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Joined: Apr 2011
Posts: 69,194
Campfire Kahuna
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Campfire Kahuna
Joined: Apr 2011
Posts: 69,194 |
Mine did that once. I had been running through a CRP field looking for a deer my nephew had wounded and lost. The front of the radiator was full of Johnson Grass seeds. Cleaned it good with a pressure washer, problem solved.
"Allways speak the truth and you will never have to remember what you said before..." Sam Houston Texans, "We say Grace, We Say Mam, If You Don't Like it, We Don't Give a Damn!"
~Molɔ̀ːn Labé Skýla~
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Joined: Nov 2015
Posts: 19,204
Campfire Ranger
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OP
Campfire Ranger
Joined: Nov 2015
Posts: 19,204 |
Mine did that once. I had been running through a CRP field looking for a deer my nephew had wounded and lost. The front of the radiator was full of Johnson Grass seeds. Cleaned it good with a pressure washer, problem solved. Mine is clean. The problem is elsewhere. I believe it's engine related. Maybe the head gasket.
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Joined: Jan 2006
Posts: 69,319
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,319 |
Get out your manual and read up on how to bleed the cooling system. There'll be a little valve screw to turn. You have to get the front up on blocks. Mine's an 800 so it's not quite the same but it'll likely still have some air in it. If that doesn't fix it, disconnect a fan wire and get it good and hot, maybe 220 or so. Then shut it off and start sniffing and listening for antifreeze leaks.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Aug 2003
Posts: 38,975
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2003
Posts: 38,975 |
How old?
I'd replace the rad cap as it may be allowing boil off? Otherwise with no obvious leak, headgasket would be my first thought as well.
Me
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Joined: Jan 2006
Posts: 69,319
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,319 |
follow along all the hoses and look for dried antifreeze at each connection.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Jan 2001
Posts: 7,478
Campfire Tracker
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Campfire Tracker
Joined: Jan 2001
Posts: 7,478 |
Get out your manual and read up on how to bleed the cooling system. There'll be a little valve screw to turn. You have to get the front up on blocks. Mine's an 800 so it's not quite the same but it'll likely still have some air in it. If that doesn't fix it, disconnect a fan wire and get it good and hot, maybe 220 or so. Then shut it off and start sniffing and listening for antifreeze leaks. Well, if he doesn't have a blown head gasket now, he probably will have after doing a test like that....................................
To anger a conservative, lie to him. To annoy a liberal, tell him the truth.
Promoted to Turdlike status 03/17/12
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Joined: Jan 2006
Posts: 69,319
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,319 |
220F isn't going to blow anything that's not in danger of blowing anyway. The fan on mine doesn't kick in until just under that, then it cycles between there and 195. You don't want it any hotter than that, though.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Jan 2007
Posts: 20,809
Campfire Ranger
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Campfire Ranger
Joined: Jan 2007
Posts: 20,809 |
Had the same issue on a Rhino...bad thermostat. Antifreeze was blowing out of an overflow tube. Trashed the fan before we figured it out.
Last edited by battue; 09/12/22.
laissez les bons temps rouler
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