986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Does the bleeder valve discharge into the tank or on the ground?

Dale_K · 08-25-2011, 09:58 AM

Thanks for the replies. A competent Porsche independent shop did the work. I'm sure he burped the system. No overheating by the temp gauge. The system is very pressurized after a drive in hot weather. It sounds like a soda bottle when I release the seal as I unscrew the cap (new style cap). It might not be pressurizing as much as a testing unit though.

Funny that it didn't smell for about 2 weeks after the tank replacement and the weather was brutally hot at the time. Most likely it's seepage on one of the concealed hose clamp connections. The coolant level seems up to the top all the time - no visually detectable loss. The smell and vapor seem to be concentrated exactly in the area where the work was done but no drips on anything I can see with a flashlight and inspection mirror and no drops on the floor. The shop also replaced the Tip coolant control valve, which had a vacuum leak so the coolant smell could be coming from there instead of the tank fittings. I can see he used new sections of rubber hose instead of reusing the 12 year old stuff. I'm pretty sure it's not simply the smell of residual coolant from previous leaks because I can feel the steam in the air.

I'll talk to the shop about a pressure test.

08-25-2011, 09:58 AM	#4
Dale_K Registered User Join Date: Dec 2010 Location: Hot Springs Village, Arkansas Posts: 245	Thanks for the replies. A competent Porsche independent shop did the work. I'm sure he burped the system. No overheating by the temp gauge. The system is very pressurized after a drive in hot weather. It sounds like a soda bottle when I release the seal as I unscrew the cap (new style cap). It might not be pressurizing as much as a testing unit though. Funny that it didn't smell for about 2 weeks after the tank replacement and the weather was brutally hot at the time. Most likely it's seepage on one of the concealed hose clamp connections. The coolant level seems up to the top all the time - no visually detectable loss. The smell and vapor seem to be concentrated exactly in the area where the work was done but no drips on anything I can see with a flashlight and inspection mirror and no drops on the floor. The shop also replaced the Tip coolant control valve, which had a vacuum leak so the coolant smell could be coming from there instead of the tank fittings. I can see he used new sections of rubber hose instead of reusing the 12 year old stuff. I'm pretty sure it's not simply the smell of residual coolant from previous leaks because I can feel the steam in the air. I'll talk to the shop about a pressure test.