overheating bad head gasket?

[ICPREY]

Burp your system with one of these or something similar Lisle 24610 Spill-Free Funnel : Amazon.com : Automotive

Rent a pressure tester from the autoparts store to make sure you don't have any leaks.

You can buy this tester to check for exhaust gases in the coolant LISLE 75500 - COMBUSTION LEAK DETECTOR CHECKS BLOCKS-HEADS-GASKET : Amazon.com : Automotive

[JDM4life]

Yeah thanx for the link .. ill try tomorrow.. napa have one for same price... any other things I can check or test first? I don't mind to change head gasket if is necessary..

[Dsmhunter]

Not any other ways I can think of. Those are all the methods I use at work. Let us know what you find out

[ICPREY]

Keep in mind if when you go to burp the system and the bubbles either never stop or they get bigger when you rev the engine then it's a HG issue.

[J. Fast]

Exhaust gas test the coolant. It's a pass or fail head gasket test. Cake.

[JDM4life]

Ok thanx guys.. ill do the test as soon I can... and of curse I'm gonna keep u guys update...

[Erron Spalsbury]

Taking your t stat out lowers the boiling point of your coolant. It actually will overheat more often without it in. Second, get a good coolant funnel, and bleed the air out of your coolant system, because air will get trapped inside and heat up, and cause your car to overheat. Sounds like you didn't get all the air bled out when you swapped radiators

Ok, this is not correct. A thermostat is a temperature device that either allows water to get to the radiator or not. (bypass enabled and open port, or vice versa)

2nd, our system is designed to self burp. The hose at the top of the t-stat housing that goes to the overflow will collect the air and if the cap pressure is exceeded will flow out into the reservoir. When the car cools it will pull the coolant back into the system.

When was the last time the system was flushed? Stock radiator?

[JDM4life]

2 weeks ago ... and is aftermarket aluminum rad ... also (fmic)

[Erron Spalsbury]

Ah, ok, that's a big clue there. Do you have the FMIC and radiator ducted together? If not, that's where I'd bet $5 your issue is at.

[ICPREY]

Don't get me wrong I feel ducting is important when the FMIC is installed, but it should not overheat after 20 minutes of driving unless it's 20 minutes of hard driving.