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?

[rm240sx]

It could be your hoses that are collapsing are weak and need replaced. that would also cause overheating. I think you should still check that thermostat also.

The green oily residue is refrigerant leaking from your a/c compressor. and those lines are a/c lines.

[Malhar95]

It could be your hoses that are collapsing are weak and need replaced. that would also cause overheating. I think you should still check that thermostat also.

The green oily residue is refrigerant leaking from your a/c compressor. and those lines are a/c lines.

Yea I was thinking I should just replace the thermostat anyways. But the thing is, a few weeks ago my buddy's camry ( 5sfe) did the same thing. We replaced hoses thermostat and the radiator, did the radiator burp thing and he still has the problem from time to time. I worry it won't solve the problem and just waste money.

what's going to make a car heat only when the heater is off. needle stays at half when the heater is on, but as soon as I turn it off, a few seconds later it starts to rise. Then it back in it drops immediately