Question about Polaris ATV
I know that there are 3 sensors that control the coolant system. Symptoms: the temperature reading on the dash keeps fluxing between 170 ish and 214 and everywhere in between. It overheated and boiled the antifreeze and blew out the weep hole on the radiator cap. The fan only kicks on for literally 1-2 seconds before shutting off. I need to find and replace the sensor that controls that. Any help on finding that sensor would be aweosome
It's not about the sensor. Overheating of the engine and the formation of gas bubbles during operation of the engine in the expansion tank must be replaced with a gasket of the cylinder block
Posted on Nov 20, 2017
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Posted on Jan 02, 2017
Hi and welcome to FixYa,
Offhand, your described condition indicates a sticking thermostat, that is there is considerable delay before the thermostat opens. It is also possible that there is some restriction wherein the thermostat is not opening completely when the triggering temperature has been reached. As a test and to confirm, you could try temporarily removing the thermostat and operate the engine without one; observe temperature. The side effect of this test is that it would take some time to warm-up the engine, but operationally should not cause anything untoward. Of course, care has to be exercised that the gasket would still be intact.
Good luck and thank you for using FixYa.
Posted on Feb 11, 2009
1997 Plymouth Neon, have replaced radiator, radiation cap, thermostate and hoses, still run hot. Fans do not seem to come on, where is the temperature sensor on this vehicle?
Posted on Sep 03, 2009
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