hellozaizai

2004 Honda Civic, 1.7L 4 Cylinder,
the car runs at the right temp. the only thing i see wrong is that the coolant is going in to my radiator overflow tank and not going anywhere. After a long drive the coolant will spray out of the cap on the overflow tank. i also see that i have small bubbles when the cars warm and on but also after i turned the car off for about 5 mins. i have changed my radiator cap and the thermostat.My friend tell me the tool autel maxidas will be my good assistant if I want to solve it by myself, what do you think? Thanks in advance!

chris_v2

I have seen this problem several dozen times when I worked at honda... Your problem is your headgasket. It's allowing exhaust gas into your cooling system causing the bubbles and the coolant to spray out of your resevoir. You need to replace your headgasket, head bolts and re-surface your cylinder head. Goodluck.