Hot!Polaris Overheating

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jkruchten
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2019/08/25 21:41:19 (permalink)

Polaris Overheating

Alright here is the deal. I have a 2016 Polaris 850 SP. I use my machine for trail riding and snow plowing. I took it mudding through a bunch a big holes 1 time and now I am having over heating issues. I took it apart cleaned it up, that didn't fix it. I took it to the shop and they didn't fix it. I rode 3 miles and it over heated, took it apart again cleaned it up some more and rode 7 miles this time and it over heated. Everytime it goes into limp mode. Took it out the next day and got 50 miles before it started acting up. After that trip, I took it to the Dealer again. They had it for 2 weeks, I told them to put some miles on it and everything. They did, it didn't over heat. They put it on the computer and no error goes came up and nothing was in the history for errors. Water pump was working right. Temp was good after letting the machine run. Nobody seems to know whats going on with it. When I run it and it goes into limp mode. I play with the throttle and run it a little and its like hitting a NOS button and just takes off. Over temp light goes off and goes out of limp mode. I can feel it heating up through the seat on my ****, but again Dealer says not error codes come up. Please  help me! I am frustrated
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    00_NUTT
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    Re: Polaris Overheating 2019/08/26 18:12:40 (permalink)
    Probably a faulty thermistor/temp sensor. You didn't say if the fan was running. So it could be a relay or thermostat or temp sensor. I believe you can unplug the temp sensor and the fans should come right one. Probably will throw and error but it will clear up when you plug it back. Also make sure you can freely wash water through the radiator fins all over cause even a little plugged up area will cause issues.

    00_NUTT
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    johngolds43
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    Re: Polaris Overheating 2019/09/08 11:20:23 (permalink)
    clean the radiator.  if you have a winch it may really be hard to get at.  I just picked an 07 that had the same problem.  I soaked the radiator with 3 kcans of carb cleaner, and then gentle used a preasure washer to blow the junk out. It looked like mississippi river water coming out.  now it cools good.
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