Rep Power: 0

ok every must hear this all the time but whaever am a girl and i dont really know to much.

i have a 2003 honda civic (EM)
it has been on boost for 3 years
only problem it has its over heating

MY car was over heating prior and i had changed everything possible it stop over heating then i had changed my motor and redid everything again.

stuff i changed:
head gasket to a cosmetic gasket
got head cleaned
placed a block gaurd
changed radiator
changed thermastat
changed hoses

after all of this i thought my problem had been solved but when i drive for like 40 min straight (to work) the temp starts going up (80mph). if i slow down it goes down. if i drive with the ac on the temp goes up but i try to open the radiator it does not over flow. am starting to think its my computer thats mest up. i cant take it no more. living in florida is to hot not to have ac and especailly to drive and look at the temp gauge while you drive.


Please help
Thanks in Advance
email me if anything thanks
leemeedee@hotmail.com

 
Rep Power: 424

How is it tuned?
Just because you blew it and changed it doesnt stop it from blowing again.
I also hope you measured the deck of the head and the block, and used new head bolts or switched to ARP studs the first time. Stock head bolts are one time use only "stretch bolts".

You can try putting an after market water temp gauge in to see if its consistent, you can also try pressure checking the system, and all that crap.
The block guard certainly wont help the cooling situation as it blocks water flow.

 
Rep Power: 231

its the block gaurd... it limits the amount of coolant to get to ur head. an easy fix is to take it out and make the holes larger for the coolant to flow through. heres an example of someone doin this. http://https://www.civicforums.com/f...july-06-a.html

 
Rep Power: 271

if everything was installed correctly (head and block flat, headgasket correct and new headstuds) then it will most likely be the blockguard. as supafil25 said the holes in the blockguard restrict coolant flow because the holes are too small. drill more holes that match up with the headgasket and you should be good.

 
Rep Power: 379

It can also be a pocket of air behind the thermostat. Happened to me twice when changing heads...

 
Rep Power: 271

^^ if thats the case you need to bleed out your cooling system. turn on the engine with the heater on full blast with the radiator cap OFF. let all the air bubbles come out. max sure your coolant resovoir is between min and max. i did this for about 30 minutes just to be sure. if your temp needle gets all the way to the H and you dont hear the coolant boiling, it would probably be an air pocket, because if your coolant temp was really at the H then the coolant should be boiling. when you are done refill the radiator to its maximum level (right at the brim so you can see the coolant from the radiators neck) and see if it overheats. if it still overheats the best bet is the block guard is retricting flow.

 
Rep Power: 0

Wait a minute. Are you running a stock 75mm bore? If so, I was 99% certain that you can only get Cometic HGs in 76mm bore and up. They don't make a 75mm HG to fit stock-bore D17 engine. Am I right here folks? If so, that may be the cause of your overheating. Unless you you got them to make a custom HG on the stock bore.

 
Rep Power: 379

d00d it's WAY easier than that. Take the sensor off behind the thermostat and put a funnel in the hole and fill with antifreeze. Turn the car back on, the thermostat now has hot water to make it open and bubbles go bye bye. I've done it twice.

 
Rep Power: 227

Not on the one car I hope!

 
Rep Power: 379

I pulled the head twice and it happened both times.

 
Rep Power: 271

sounds like an idea rufus. never heard of that method but i next time i will know better ..