Losing a bit of Anti-Freeze

[Lew]

I still have coolant condensation on my deck lid after replacing the old cap with the newer (04 part #) and the two O rings in the relief valve. I plan on rubber banding a zip lock bag over the coolant cap, and on over the relief valve. Maybe that will tell me where the leakage is coming from.....My coolant cap is very tight!

[Burg Boxster]

Originally Posted by Lew

I still have coolant condensation on my deck lid after replacing the old cap with the newer (04 part #) and the two O rings in the relief valve. I plan on rubber banding a zip lock bag over the coolant cap, and on over the relief valve. Maybe that will tell me where the leakage is coming from.....My coolant cap is very tight!

A very simple pressure test which pretty much ANY qualified mechanic/repair shop can perform will pinpoint where your problem lies. Cost minimal and time less than 30min.

Good luck