cooling problems.

[towlie]

this was a few weeks ago...

ever since i repaired my car at a certain shop, ive been having problems. it all started with a cracked radiator. i replaced it with a mishimoto unit, and all seemed fine until i was driving home and my temp started to fluctuate. it would be normal, jump up hella high then go cold and stay, and continue. it was driving fine so i thought no big deal, its just my thermostat. after a mile or two i noticed steam coming out from under my hood. FVCK.

after some searching i saw my upper radiator hose had an half inch crack in it and it was leaking coolant all over my engine, thus causing the steam. i replaced it, and after driving a mile down the road the temp guage started freaking out again. but this time it just maxed out high and stayed. as i was replacing the thermostat, a mechanic (i was parked at a J&M body shop) tested my thermostat and it apperantly works fine. shitty.

ordered up a new temperature sensor, went for a test drive. still the same problem of the temp. fluctuating.. when i get on it it stays cool, but let the rpm's drop or shift into neutral and it shoots up to max high.

so far i have replaced:
radiator, upper rad hose (old one leaked), tempature sensor, and thermostat.

headgasket...? seems to pull like normal however.

btw its a 1991 KA24DE.

any help will be appreciated.
thanks!
-towlie aka zach

[NINJASPY]

bleed it more.
elevate front end while bleeding
use bleeder screw(where upper radiator hose meets block)
then bleed it some more.

Same thing on my car. Overheated, blew a radiator hose, replaced hose, still overheating, bleed some, still over heating, bleed some more, finally I am good.

[towlie]

did all that.. bled it 3 times now. its not overheating, like i said its pulling like normal, the guage is flucatating from max high to low

[92sxMike]

could be a water pump going bad. That would have been my first repair from the behavior of the temp climbing and dropping. Good luck though.

[zstylelowrider]

Mine was doin that and come to find out it was just not bled all the way. Try pressure testing it just to make sure that there is no leaks.