car overheating issue

[Accord07]

So today i went to school, which is 15 miles away, and on the way back i saw my temp gauge at HOT, and going well into the RED ZONE. I got off the interstate and popped the hood. There was some steam letting off around the thermostat area, so this was not good. I drove about 4 miles more to my house, i drove on the emergency lane the whole time at 25 mph. Right when i got home, there was steam EVERYWHERE. I left the hood open for about a hour, Which cooled down the engine rather fast. I checked the hoses, which seem fine, I replaced my thermostat about 3 months ago, which did not leak. I did however not change the thermostat gasket when i did change it, Could that be it ? got any suggestions ? Plus my radiator has NONE, i filled up my reservoir, because it had none either. It has to be leaking somewhere bad, because i did see pools of water, but didnt think it would be antifreeze.

Might have to get a new thermostat...idk !?

[GearBangnAccord]

system cud need bleeding

[LouieD]

Aftermarket thermostat? Did it have the bleeder rivet in it? If it does make sure it's at the top (12'oclock). If it does not have the bleeder in it, and has no hole, drill a 1/8" hole and when installing it place the hole at the 12 o'clock position. If it's a new thermostat, and you want to make sure it works, you can put it in a pot of water and heat up the water, and make sure it opens all the way. I have seen new aftermarket thermostats open partially. Also, replace that seal.

Another often neglected part in the cap. Remember that the caps job is to keep the system pressurized. For every pound of pressure you get an extra 3 degrees to the boiling point of the coolant mix. So, at sea level, water boils a 212 degrees, but a system with a 13psi cap would keep water from boiling up to 251 degrees. So a leaky cap will allow water to boil much faster.

Refill the cooling system with 50/50 mix of Honda coolant and make sure to loosen the bleeder screw in the thermostat housing. Let coolant come out of that bleeder screw until no more air comes out. Now with that being said, I would pressure test the system to rule out other possibilities.

Good luck

[phantomcow2]

+1 for the pressure test. There's a lot of places where it could be leaking, and as another poster said, this will allow the water to boil out and cause steam. I had a similar problem and found it to be a hairline crack on the plastic radiator reservoir.

If you find yourself overheating, turning the heater and blower to the maximum acts as a sort of auxillary cooler.

[Accord07]

re

Does it have to be honda coolant ? I have a aftermarket radiator in it, and new water pump. I did add 50/50 prestone mix to the reservoir, but none to the radiator. I am probably going to stop by honda and see how much the gasket is, and prob the thermostat as well. Any clue on how much that seal is ?

The aftermarket thermostat did have the little hole in it at 12 o clock, but this thing itself looked smaller than the honda one.

[Accord07]

Well guys, I found the culprit !

The G man had told me that it could be the hose that feeds the heater core, and true it was. IT was a b#$#$ to install, but that did indeed fix it. I did buy a new thermostat from honda, but dont need it now =)

anyone want to buy it....because i opened it and cant return it =(