Originally Posted by scottagher

i have a nissan sentra gxe - 2001 - my dealer has soaked me enough with repair charges i thought shouldve been warranteed, so I'd like to handle this myself. the car seems to overheat after about 15 mins of driving (needle goes up pretty close to the H)- if I blast the heat, it comes back down to where it should be.

Could it be as simple as a thermostat? if so, where would i find it in my car.

Any help is much appreciated.