Recently, have noticed that there is white/milky substance mixed in my coolant reservoir. I remember reading before that it could be the HG...could it be anything else? My EGTs read fine and car overheats occasionally in stop and go traffic. Is this the prime suspect?

Thanks!

 

i would say prime suspect..

leakdown test would for sure tell..

mike

 

check the underside of your oil cap for a milky substance. clean your coolant tank out and clean it, then re-install it.


if there is milky substance under the oil cap its definately blown.

 

no milky substance under the oil cap

 

Ive had the milky crap under my oil cap and didnt have a blown head gasket as like you thats what I though it would be. I took off the valve cover cleaned all the crap and the oil cap and it didnt come back. (weird)!

 

IF you have milky substance and overheats and missing coolant deffinatly HG!!!!

 

check that dipstick too. You'll also hear a rushing water sound in your car. (exhaust gases entering the coolant system.) in most cases.

 

thanks guys