celica overheated., Fan/Fan switch/Thermostat? Options

[Badkarma]

my gf's celica overheated today and by the time she realized the temp guage topped out, she was home and the car was steaming. when i got home from work i checked the coolant, it was low so i filled it and it isn't leaking. (not enough to notice) so i had her start the car and the fans didnt turn on at all while the temp guage topped out again after about 5 min.

i figure its probably the thermostat, Fan Switch/Relay, or the Fan itself. am i on the right track? how hard is it to pull the thermostat or fan switch/relay?

Thanks, Erich

[dliverance]

man this is scary...all this head gasket talk. my car is starting to do the same thing. but its wierd. i have pressure in both hoses right when i start the car, but i haven't checked with a cold start. i have a new rad. fresh coolant, but i keep having to add coolant/water even tho i don't see a leak. and also when i turn on the heater at mid temp i get no heat. just cold air. like a/c air. i'm praying this isn't going to be my head gasket.i think i'm going to try the rad cap, then thermostat next. even tho the girl i just bought the car from says she just changed it last month. Nothing like a hot car in florida in the middle of the summer.

[nics]

man this is scary...all this head gasket talk. my car is starting to do the same thing. but its wierd. i have pressure in both hoses right when i start the car, but i haven't checked with a cold start. i have a new rad. fresh coolant, but i keep having to add coolant/water even tho i don't see a leak. and also when i turn on the heater at mid temp i get no heat. just cold air. like a/c air. i'm praying this isn't going to be my head gasket.i think i'm going to try the rad cap, then thermostat next. even tho the girl i just bought the car from says she just changed it last month. Nothing like a hot car in florida in the middle of the summer.

sound like a clogged heater core.. did you ever use stop leak products?