So I've been making posts for about two weeks regarding over heating issues with my 05 Monte Carlo SS Supercharged and just the other day my coworkers and I found out I had a combustion leak. There's no white smoke, nothing wrong with the oil, but after burping the air out multiple times and it still overheating and doing the exact same thing regardless, we checked it out. We ran it with the cap off and my coworkers noticed how it spewed out coolant instead of circling it thru. I added k seal which did nothing so I wanted to know what is a better gasket sealant to hold me for atleast a month until I can get a new car ? If it help at all, once I turn on the heat the temperature doesn't reach the red mark on the end of the gauge it actually sustains for a while

 

I would assume it's the head gasket at that point, nothing in a bottle is going to help.

 

Well that sucks. Thank you!

 

I've never been much of a believer in additives or stop leaks, but in your case all you have to loose in the money spent on the product as long as it doesn't mess up the cooling system (Radiator, heater core, etc...).
I saw Zippy boosting this K-seal stuff on a thread the other day:

 

Yeah I gave it a shot but to no avail. I was thinking bars stop leak

 

That sucks, I've never used any of them. I heard K-seal is better than bars stop.

 

I used Bar's on my firebird and I was able to drive it for a year without it over heating but for some reason the same don't go for my Monte Carlo. I've aready started looking into gettin another car which sucks

 

Hope it's another Monte, good luck man.

 

Them gsket sealers in a bottle can do more harm than good. Either replace the gaskets or retire the car is the only real options here. Sounds like retirement is the choice and im sorry to hear

 

A lot cheaper to replace the head gasket than getting a new car! If everything else is good changing the head gasket and LIM can make it last another 100k miles.