Author Topic: Legit Vacuum Diagrams? (Read 4551 times)

Sophia69IS · « **on:** March 18, 2010, 04:44:42 PM »

Hey all, I have searched this site for original vacuum hose diagrams, and so far all I can find is what people think is right, I can not decipher the hose diagram on the shock tower either because the sticker is mostly ruined.

Basically my ideling is terrible, my car idles way to high usually, but sometimes it idles fine. When I come to a stop the idle will be at 1500 and then very slowly and gradually back down to around 850 where it should be. First I thought idle control valve, so I cleaned mine, nothing happened, so I got another one, I've seafoamed, I've put lucas injector cleaner through it, my next best idea is shitty vauum lines, they seem kind of old, but I do not even know the proper routing.

Does anyone have any ideas for me? Any help would be awesome!

dinu.negrean · « **Reply #1 on:** March 18, 2010, 08:38:17 PM »

RealOem.com -> Select your car -> Browse parts -> Engine -> Vacuum control

If searching for vacuum leaks, you should go get some brakecleaner and start spraying each rubber line and seal one by one. If your engine revs you know you've found it. It helped solve my problem.

AtlBMW · « **Reply #2 on:** March 30, 2010, 05:12:10 AM »

Quote from: dinu.negrean;89697

RealOem.com -> Select your car -> Browse parts -> Engine -> Vacuum control

If searching for vacuum leaks, you should go get some brakecleaner and start spraying each rubber line and seal one by one. If your engine revs you know you've found it. It helped solve my problem.

realoem doesn't give the option of Vacuum Control under Engine for my VIN :confused:

RED IS 91 · « **Reply #3 on:** March 30, 2010, 10:38:46 AM »

this may help

Sophia69IS · « **Reply #4 on:** April 06, 2010, 09:40:55 AM »

thanks red is 91!

dinu.degrean...realoem.com only has vacuum diagrams for e36 models...thanks though!

BlueBMW · « **Reply #5 on:** April 06, 2010, 09:19:10 PM »

Quote from: Sophia69IS;90522

thanks red is 91!

dinu.degrean...realoem.com only has vacuum diagrams for e36 models...thanks though!

You have to click archive on the first page at realoem.com and then you can pick E30.

bmwman91 · « **Reply #6 on:** April 07, 2010, 12:20:45 PM »

Uugh, the vacuum system is such a pain in the ass! Rebuilding it took forever.

BlueBMW · « **Reply #7 on:** April 07, 2010, 07:16:53 PM »

Vacuum sucks.... sorry couldn't hold back the pun.

blalor · « **Reply #8 on:** April 12, 2010, 06:28:36 PM »

Quote from: BlueBMW;90537

You have to click archive on the first page at realoem.com and then you can pick E30.

No, it's just not there. For my VIN: http://www.realoem.com/bmw/select.do?vin=EE69769

Quote from: BlueBMW;90564

Vacuum sucks.... sorry couldn't hold back the pun.

*groan*

RED IS 91, that's a great diagram. There's no significance to the colors, is there?

edit: cleaning up the mess under the intake: http://www.m42club.com/forums/showthread.php?p=74524#post74524

tonywonder · « **Reply #9 on:** April 15, 2010, 07:00:33 PM »

its under fuel prep system