My KA (SOHC) runs cold 24/7?

[doomviillain]

I bought another 240sx hatch. when i bought it the guy says the motor was rebuilt 8000 miles ago and showed paper work. its all stock wit advanced ignition timing. I drove from north hollywood to lancaster and back (75 miles). the whole time my engine runs cold, maybe a little above the C, bear in mind it only has water in the radiator! I know its not the gauge because i turn on the heater and it really doesnt blow hot. Im thinking i probably dont have a therostat, I would go to a mechanic and check it out but I figured id ask first. any advice on what it could be?

[redpanda87]

Its def your thermostat, its probably stuck open. easy fix.

[doomviillain]

wouldnt that be bad for the motor

[buentellomma]

thats your thermostat , my hard body pickup does the same thing

[I LUV MY S13]

not bad, but running too cold isnt always good, you always want your motor running at the right temp...just replace with a nismo thermo, they're only like $40 and easy to install

[doomviillain]

will do, tnx guys

[Slammed Assassin]

agreed, its bad if you daily your car and dont reach proper running temps.

after you change it make sure you bleed out all the air.

[rwtf]

sorry to bump a old thread but i'm having the same problem.
I'm running a Koyo Rad with just a 12inch Efan in a remote switch.

I replaced the Tstat with a BRAND NEW one today and it still runs cold.

Any ideas?

[Mishkin_707]

@rwtf, where did you get your new thermostat? Could be bad if you got it from autozone, that or you just need to bleed the system a bit more

[Pro ViZIon]

Well if he had air in the system he would probably overheating.