This may be stupid to ask but how do I bleed the air out of my coolant system. Theres a little breather screw on the thermostat housing do I use that or is it simpler than that. Some one told me to just to let the car idle with the radiator cap off and top it off. Does that work to get rid of the air? I have a larger capacity radiator so I just want the system to be in top shape for the summer.

Thanks in advance

 

Helm's manual, Chapter 10, Page 5.

 

I've personally never used the bleeder screw method and have had no issues. Normally whenever I am dealing with coolant, I have the front end of the car jacked up because I'm draining coolant. I just leave the car running on stands in the front so the radiator fill neck is the highest point.

 

why are you asking. Did you recently have a coolant flush. if so then its probably just a air pocket which is semi common, also has your car overheated?

 

^

 

There's a screw on top of the thermostat, you'll know it when you see it, just loosen it and fill the radiator until a steady stream comes out with no bubbles then shut it and torque to 7 ft-lbs.

 

ok great thx. i ll try that this weekend

 

That you know of. Having air in the system does more than cause the car to overheat. It also cause's cavitation which is the number one killer in a cooling system. When people see evidence of cavitation it is often mistaken for electrolysis. Simply jacking the car up will not eliminate all the little air pockets that form through out the block. OP follow the service manual procedure and use the bleeder.

 

You should do it ASAP, it only takes a few minutes, bolt is 10mm and just have a jug of coolant ready.

 

One more piece of advice. Don't buy the 50/50 mix. Just purchase straight antifreeze and mix it yourself.

 

Hooray for adding water and saving lots of money!

and I fill the radiator all the way up and put the cap on and let it overflow into the reservoir, then after the thermostat is open just crack the bleeder screw and be done. No problems in FL on stock or aftermarket radiators, and also the procedure I use on our high HP evos at my shop with half core radiators that DD, except they don't even have a bleeder screw.

 

The 50/50 mix is a safer bet than doing it yourself. There is no water currently on the market thats meets any manufactuers specification. (Although distilled comes close) Also the safest bet is to use Honda Coolant.

 

I have a 95 Odyssey. I want to do a drain and fill. But I can't find the darn thermostat housing which has the coolant bleed screw. Can somebody tell me where I can get a diagram or layout of a 95 Odyssey engine? Thanks!