car still over heating

[aust92pearl]

i replaced the small hoses coming off the water pump put some new coolant in and took it for a drive . all seemed good until yesterday jumped in warmed her up drove about 3 miles and cel came on then went off after about 5 secs i stoped did the testy thing and got maf and pass side 02 sensor again oddly the car wont clear the codes . so driving back home again it all seems fine untill i slow back down to 30 mph coming through a town i could hear the fans running full blast stoped and had a look. the liquid (part p/s oil , part engine oil and part coolant) thats ontop of my engine was bubbling and after about 30 secs of looking under the hood i quickly turned the car off as it was just under the red temp line .
does anyone know why it would be doing that i cant figure it out
i will be giving her a rest in a few months as im going to put my ke70 sedan back on the road and start saving for refurbishment and rebuilding of my pearlie

[SVXRide]

Did you make sure that there was no air in the coolant system when you filled it back up (no more bubbles coming out of the radiator neck)?
-Bill

[sowise]

smell your coolant overflow bottle if it smells like exhaust then it could be your head gasket.

[SoCal LS-L]

This sounds like the bad news of a blown head gasket

Your initial overheating problem may have killed them. I would first replace the thermostat though.... cheapest easiest thing to eliminate..... then you should try to find a "block tester kit" to confirm there is exhaust gasses in your cooling system. It is also possible if the HG is really bad then your oil and coolant may have already mixed, which will be evident with a frothy oil coming up with your dipstick, the presence of oil spots floating on top of your coolant in the reservoir or radiator, or coolant coming from your exhaust.

But do the T-stat first, just to rule it out before worrying about the HGs'.

[aust92pearl]

yep its the HG then

coolant smells like coolant lol

nope no air i learned that trick with my old corolla just run it with the cap off til the thermo opens and fill up full again

i couldnt see any frothy stuff in the oil but there is definatly a layer of shiney stuff floating in the rad

dagnabit i guess il have to give her the rest she needs early. and start saving for her future restoration

[SoCal LS-L]

That really blows man, I feel for you

I guess you can look at it as an opportunity to do a full reseal when you have the motor out, then you will be good to go for another 150K miles