jmporsche944

Heres a picture of my engine when it was together. When I was replacing the vacume lines I snapped the line and plastic connector off this thing by mistake. I have no idea what it is or where I can get it. Any help is appreciated. (I drew a red arrow to the part. Its a blue cap thing with a small line that connects to the center of it.

944_S_TYPE

I think it is a vaccum sys check valve... Anyone ?

FletchDM

That's the brake booster check valve. Mine was broken when I got the car, resulting in an unstable idle (vacuum leaks can do that). You can get one from Pelican, Paragon, etc. for about $15. THe black & blue thing above it is also a chack valve, I think, but I'm not sure of the part #.

-David

hosrom_951

On the 951, that check valve is used for the climate control vacuum system

jmporsche944

Will the car run without this? I plan on replacing it but I just want to start the car up and see if the timing belt/balance belt job I just did went smoothly.

FletchDM

It'll run... but the idle will be a little rough and will probably hunt a bit up and down (mine did, anyway).

-David

Gator_86_951

hosrom didn't you buy one of those from the dealer. that is what i remember.

michaelathome

Anyone have a write up on replacing this piece? Nothing found in threads or at clarks-garage.

I haven't checked Haynes yet.

Michael

camelot

I've been having good luck with 9440nline.com. They are very good and know their parts. Check out their web site, you'll probably see the part. Oh btw I got that na running I was talking about at the gtg in nj. It was good to meet you.

hosrom_951

Sorry for the late response; Yes, i did purchase 3 from the dealer. one failed (original) and casued a humming noise from the engine bay. The other two i got for a replacement and one extra as a spare.

Dilberto

I have an extra one if you want it. Reply with mailing address.

Always willing to help out another Porsche owner-
Zach