smoke from passenger vent - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Lil bastard · 05-07-2008, 08:42 AM

The rear fan is just an engine bay exhaust fan - does not cool the engine at all, it prevents heat build-up in the engine bay.

Steam from the reservoir could be a bad cap, an open Bleed valve or a cracked Reservoir (not to mention hoses, clamps, spillage, etc.).

Hope you used Distilled water and not Tap water to mix the coolant.

Tool Pants · 05-07-2008, 09:43 AM

Don't forget that when you fill the system with coolant after a water pump replacement you need to bleed the air out of the system. Remove the black plastic plate under the caps and you will see the metal lever for the bleed valve.

ultimate1 · 05-07-2008, 10:17 AM

FOund the bleed valve is there any particular technique?

Tool Pants · 05-07-2008, 12:54 PM

A few years ago Porsche started using a vacum filler device, which most people are not going to have. Before then there was the old method. I assume you do not have a tiptronic.

Lift up on the lever. Warm up the car a while and keep the tank full. Put the cap on run the engine at 2,500 rpms for 10 minutes to get the thermostat opened. Make sure the tank is still filled. Run the car at 2,500 again for 5 minutes and every 30 seconds briefly rev the engine up to 5,000 rpm.

All this is for a car in a shop setting. When I bled my system at home a few years ago I filled the tank. Put the cap on and lifted the lever. Then I went for a 20 minute drive. I brought water with me in case the low level warning light came on to top off the tank, but it did not. When I got home I filled the tank to the max and closed the lever.

Don't burn yourself.

ultimate1 · 05-07-2008, 06:13 PM

Thanks ToolP. I will try that in the morning.

Tool Pants · 05-07-2008, 06:30 PM

I hope that means you are not going to try burn yourself.

Any pictures of the old and new pump? Does that ebay pump have a metal impeller?

ultimate1 · 05-07-2008, 07:10 PM

Thanks again ToolP, I will do my best not to get burned.

The new pump has the metal impeller and I did not take a picture of it before I installed it. Sorry about that. I will take a picture of the old one and post it for you in the am when I get out to the garage to work on it.