Overheating problems

[Bryan86]

My 86 honda accord is boiling over into the expansion tank. Is it because the cap is not seating properly?

 

[Reckone]

If it is boiling out of the overflow tank, it could be signs of a bad headgasket.

 

[801CRX]

Or try your thermostat.

Take the easiest approach first.

 

[welfare]

or just try a new radiator cap, even easier than a thermostat.

 

[jjrjdm85]

head gasket for sure