polairs overheating

[Bezzola]

have a 2008 400ho sportsman that is over heating the fan works i,m thinking the temp sensor is shot how do you test it

 

[mavrick]

check your rad fins if any are bent thats probaly your problem if you wash it with a pressuer washer you will get bent fins.

 

[stowe8807]

the newer polaris have a problem with a fuse to the fan its under the front rack you can test it with a continuity tester

 

[dirtball08]

From 2005 and up, polaris has had problems with ecms. The ecm controls the fan. The fan could not being staying on long enough to cool down. The next time the fan kicks on, count how long. Call poo and see if there is a update for it. Hope this helps.

 

[OnlyPolaris]

your rad is probably full of mud and dirt causing it not to get enought air flow. it may look clean but usually its not.

 

[stowe8807]

mine did this as well and started shooting coolant out instead of putting stock coolant back in i put engine ice in it and replaced the fuse and coated it with utv grease and havent had a prob since

 

[Bezzola]

thanks for the help going to check the fuse right know.

 

[polarshell]

My machine is older but I had the same problem- every time I went even a mile, I started pissing coolant. Mine turned out to be a head gasket and a plugged rad. We thought the rad was clean but was SO full of crap. I was also told by the dealer to check the rad cap....

 

[Mongrol]

From 2005 and up, polaris has had problems with ecms. The ecm controls the fan. The fan could not being staying on long enough to cool down. The next time the fan kicks on, count how long. Call poo and see if there is a update for it. Hope this helps.

NO ECM ON THE 400HO ! If you;ve been in the mud, clean the BACKSIDE of the rad.

 

[gr8tdragon]

Mongrol,

There is an ecm on 2005 up as I had to take my 450 in for the recall on it.

 

[Mongrol]

You are probably right for that machine but the 400HO has no ECM. Its carbed and has CD ignition. Thats why I bought it, no computers.

 

[Scottishpride]

Your problem and your many future problems with your Polaris can be easily solved with some unexpensive items. Jerry can of gas and a Lighter.:d