alright so today started out pretty normal til i got to work. i noticed my car was starting to overheat. i shut it off before it got to the red, popped the hood and heard a loud hissing coming from the rubber hose that sits in the back of the engine. so i pulled it off cut it back put it back on and no more hissing or leaking at all. car starts to get hot again while im driving. so i pull over at work park it go buy a thermostat and swap it in there. the old one looked like **** and the rubber seal was shot to hell. turn it on let it sit for 15 minutes no crazy hotness jsuit right......so i take it for a drive and wala im frickin going hot as hell again!!!!! any suggestions. fan is spinning but im starting to wonder if maybe its not spinning fast enough. ya know how it has 2 speeds....hmmm car is a 95 sc300 159k new timing belt and fairly certain pump was done also looks new.

 

You probably just have a little air in the system, just bleed it and see what happen.

 

by bleeding it you mean empty it out all the way and top it off?

 

Jack the front end up remove the radiaotor cap make sure all the hose clamps are tight and then turn the heat on full blast.
Then try to add coolant in the radiaor will you rev the engine to 2500 rpm every couple of minutes if you have a funell you will see the air pockets lol.
these are the stuff i use they work great

 

This happen to me on my sc400 I dont kno.if this will help but mine was due to the fact that the fan pump pulley was seized up so I changed that and it fixed everything

 

time for engine swap = )

 

LOOL....

Bleeding your coolant system or engine swap....hrmm....


I love how people love to use an engine swap as a remedy no matter how small the problem is. You got a flat? Loose lug nut? Need an oil change? F THAT, Engine Swap!

 

LOL im speaking that damn truth bro

 

lol 510sc your an *** hahaha engine swap...ppshh its already na-t although it would be nice to afford it...

so i kept it simple and did a quick combustion leak test just to see if i had a damaged or blown headgasket.......and yeah......IT WAS GOOD! lol......so i got in my car and turned on my heater...........no friggin heat colder than ive ever felt it......so now im like wtf...maybe i put the thermostat in backwards.....nope it was in the right way........so i said screw it i dont need no stinkin thermostat.....car runs fine now....NAPA gave me a bad friggin THERMOSTAT!!!!!! ARGHHHH!! i was so pissed but het ish happens live and learn.....just cause they say its new doesnt mean it works....

 

get the proper one from the dealership.. cuz its not good to run it threw with no thermo stat

 

y???????????

 

It wouldnt be bad to run without a tstat, just that u dump more fuel cuz ur car thinks its cold all the time

 

this totally worked took foreeeeeeeeeever but it worked. good looking out bro.

 

A thermostat is a must...if anything run a fail safe thermo that opens sooner. If you run no tstat when your driving and it get a lil cold out your temp gauge will read cold causing your car to not perform optimally. If you really want to stay cool and you DONT do lot of stop and go driving nor are in an area that gets below freezing 0c or 32F run some distilled/de-ionized water as is cools better 4.184 g/deg c to be exact!