Temp light comes on then goes off. - Yamaha Rhino Forum - Rhino Forums.net
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post #1 of 5 (permalink) Old 05-17-2018, 08:40 AM Thread Starter
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Temp light comes on then goes off.

The temperature light blinks on and off. Fan is running and if I stop and turn the engine off then restart it the light is out. Does not seem like the engine is overheated. What could this be????
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post #2 of 5 (permalink) Old 05-17-2018, 11:58 AM
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The temperature light blinks on and off. Fan is running and if I stop and turn the engine off then restart it the light is out. Does not seem like the engine is overheated. What could this be????


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post #3 of 5 (permalink) Old 05-18-2018, 03:25 PM
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The temperature light blinks on and off. Fan is running and if I stop and turn the engine off then restart it the light is out. Does not seem like the engine is overheated. What could this be????
I had the same problem on my 2005 Rhino 660. You can probably find the thread on this site under "cooling" (I think that's the topic). Anyway, my temp light would come on then go off. The unit never boiled over, transferred coolant to the reservoir, or seemed hot. I ordered a new Thermal Switch from Cheap Cycle Parts and got the one labeled "Thermo Switch Assy UR FOR METER
5KM-82560-00-00". Problem has since gone away.

Also, as a precaution, and it was recommended, I flushed my radiator and refilled the entire system with Prestone 50-50 anti-freeze. BTW, I did that before I changed out the switch.

Hope that helps.

Scott
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post #4 of 5 (permalink) Old 05-18-2018, 04:00 PM Thread Starter
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Today i flushed radiator and cleaned the fins. With the engine cold I started it and after 2 or 3 minutes the light blinked on and off then never came back on. Thinking it is the switch. May hook a mechanical temp gauge up instead of the light.
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post #5 of 5 (permalink) Old 05-19-2018, 11:47 AM
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Today i flushed radiator and cleaned the fins. With the engine cold I started it and after 2 or 3 minutes the light blinked on and off then never came back on. Thinking it is the switch. May hook a mechanical temp gauge up instead of the light.

I went with an Eqqus temp gauge works great, at 190* fan comes on and cools down to 180* and goes off. No more guessing.

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