05 sportsman 700 overheating???
#1
05 sportsman 700 overheating???
Ok guys this is an update to my other thread (05 sportsman 700 efi) so far we have checked all the fuses the relays the relay connections, the thermastar sensor, the plug going to the sensor, the thermostat, we installed a new filler neck a new 13-psi radiator cap we tested the fan that all checked out good, we pulled all the hoses and drained the system we even checked to see if the water pump was good which seems to be fine, we just cant crack this one what gives any other suggestions??? when we drained the system we purged it for air then did a new refill as the machine was warming up we were filling the radiator as needed as it got hotter the fluid would rise in the filler neck and boil over or go into the overflow we have confirmed circulation from the radiator to the water pump through the engine to the thermostat back to the radiator like the service manual shows However the only 2 things that we could possibly think it might be is either the ecu unit or could it possibly be the upper inlet of the radiator is clogged somewhere and not allowing the fluid to circulate back through the radiator?
#2
#5
I have a 05 Polaris Sportsman 500 HO and i had the same problem u have. I tested the thermostat and it worked purged air changed coolant cleaned radiator REALLY good. Then i got a recall notice for the ecu or ecm. Took it in for the ecu or ecm. The recall also fixed my overheating problem Old Polaris Tech might know about this?
~Polaris man with issues
~Polaris man with issues
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#9
Just curious but what hole? is there a diagram of this shown like in a service manual or something?
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