hey guys this sounds like a dumb question to ask especially comeing from me but were is the thermastat on my 12v and how haRD is it to replace i think its stuck open because my truck wont get abouve 145 degrees

 

the lifting eye on the front of the engine has a housing with three bolts in it just to the passenger side of the front of the head, remove those three bolts and there it is, and you can do it all with a 10mm and about 30 min if you include draining and refilling!