overheating st Options

[Malhar95]

i recently noticed, that my gauge reads hot sometimes and then drops quickly, first time it did that i checked the coolant, was a little low added water,

and then it does it randomly, coolants level is good. however when i turn the blower on (with temp to hot and AC button on) the needle comes down.


i also noticed the first day, that its leaking from where the bottom radiator hose connects to the engine, above the transmission area.
but yesterday when i was filling up gas, (it wasnt over heating or anything, i just checked) i saw its not leaking from there, but its quit wet under the coolant reservior and it was bubbling.

im guessing its the thermostat, but any input from you guys? how do i diagnose a thermostat, other than taking it out and puting it in a hot pan?

[99celiGT]

replace your thermostat if you havent yet, also your head gasket could be the cause. especially if the your coolant is boiling like that. if you turn on your car with the radiator cap off see if you can smell any hint of exhaust fumes coming through the filler neck.

[ILoveMySilly97]

if you turn on your car with the radiator cap off see if you can smell any hint of exhaust fumes coming through the filler neck.

OR! Try this link. The DIY $30 BLOCK tester method! I'm going to give this a try after I flush my cooling system, change to OEM rad cap, OEM upper hose, and OEM thermostat.

http://www.arrowheadradiator.com/head_gask...n_leak_test.htm