How do you test an ATV fan motor?
Locate the temp sensor on the rear cylinder head (driver side or CVT side of the bike). Unplug this sensor. Start the bike and let it idle for a few seconds. The “check engine” light will start to flash and your fan will kick on.
Does a Polaris 500 have a thermostat?
This unit drops in just like stock and actually keeps your engine running cooler as it opens approximately 10 degrees sooner than the stock thermostat. Replaces Polaris part number 3084940 for all Sportsman 500’s.
Why is the fan not working on my Polaris ATV?
Unplug the temp sensor and turn the key on without starting the engine. The fan should run because it defaults to “ON” when there is no reading from the sensor. Wiring is almost always the problem. Have you tried pulling apart the connectors and making sure they are clean and making good contact? Even under the relays (a real pain)?
Why is my Polaris 550 XP sportsman not cooling?
Our 2009 Polaris 550 xp Sportsman has started to overheat the fan doesn’t start any more. I applied 12 volts to cooling fan and it works fine. Replaced temperature sensor both old and new the red light would come on. Switched relay with one of others same result.
Where is the fan on a PRC Polaris?
If you look under the hood, remove the storage tray and then down inside to the passenger side of the radiator. There is a large brass nut on the radiator with a wire coming out of it. That wire goes up and plugs into the harness at a little higher location but still under the removable storage level.
Why is the fan not coming on on my XP?
Is yours a 500 or 700. If it’s a 700, your ECM may be bad. Several of the ’06 XP’s (and a few ’05’s) have had the ECM go bad and the fan not coming on is one of the symptoms. But first you should check to make sure the thermistor (essentially the temp’ sensor) is working.
Unplug the temp sensor and turn the key on without starting the engine. The fan should run because it defaults to “ON” when there is no reading from the sensor. Wiring is almost always the problem. Have you tried pulling apart the connectors and making sure they are clean and making good contact? Even under the relays (a real pain)?
Our 2009 Polaris 550 xp Sportsman has started to overheat the fan doesn’t start any more. I applied 12 volts to cooling fan and it works fine. Replaced temperature sensor both old and new the red light would come on. Switched relay with one of others same result.
If you look under the hood, remove the storage tray and then down inside to the passenger side of the radiator. There is a large brass nut on the radiator with a wire coming out of it. That wire goes up and plugs into the harness at a little higher location but still under the removable storage level.
Is yours a 500 or 700. If it’s a 700, your ECM may be bad. Several of the ’06 XP’s (and a few ’05’s) have had the ECM go bad and the fan not coming on is one of the symptoms. But first you should check to make sure the thermistor (essentially the temp’ sensor) is working.