on engine block.
mine is right between where the alt and AC pump
follow the top radiator hose back to the engine.
should be two 9/16 bolts holding it on.
there is also a heater hose next to it but it is not attached to the t-stat housing

Be careful when you take it off that nothing falls into the hole.
before you take it off. you should drain some coolant from the radiator.
there is a drain valve on the right side of the radiator next to the bottom.
catch as much coolant as you can for recycling. anti-freeze is poison.

killer

 

@ tattoodbrute

changed the t-stat and used air on mine over the weekend.
it did help.

have you got your trk putting out better heat. what did you do?

killer

 

no better heat yet decided to take out the RZR last weekend instead, will change the t stat this weekend and blow out heater core, will let you guys know the outcome thanks for all the pointers

 

Rzr is more fun anyway lol Our rhino hasnt been out in forever.

 

ok guys i changed the t stat and flushed heater core with water as well as air still not 100% but way better than before at least theres heat when idling not cold air, we'll see when it gets -40 c with the windchill here in manitoba

 

I just tested my heat tonight its ok when on low but as soon as you turn the blower on high it cools off so it looks like ill be flushing it this week.

 

ya flushing is the easiest way to get cheap heat and honestly try the vinegar it's worked great for me!

 

Yeaht thats what im going to do I did the easy off method on my woods jeep and it worked awesome but I dont want to do it on my truck cause ill prob have it everywhere in the engine bay

 

@ tattoodbrute


UPDATE:

OK
outside temp 50 F
speed 55mph
windows down
temp set all the way to right, on hot, vents set to feet, fan on 2
FEET SWEATING

the FIX

flushed heater core both ways with water and air.
THEN...
poured straight white vinegar and let it sit for 1 hr.
flushed both ways for about 3-4 minutes with water then air.
THEN....
poured core full of CLR. bottle said not to use an brass or aluminum so use at your own risk.
let it sit for about 5 minutes and flushed it out with water
THEN...
took rest of CLR and mixed it with about 1 gal of water and let it set for about 5 minutes and flushed it with water and then air. then repeated it and flushed other direction with water and air. the repeat until all water and CLR mixture is gone.
THEN..
final flush with water for 10 minutes both ways.
reconnect hoses, top off anti-freeze.
THEN.......
HEAT

hope this helps.

Killer