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Date: Thu, 14 Apr 2005 02:38:39 +0000 (UTC)
From: Craig's Saab C900 Site <c900nospam.apana.org.au>
Subject: Re: Where is PCV on '86 900 8v?


"MH" <nomailnospamere.no> writes: >> I re-seated the oil filler cap and valve cover nipple of >> above dscribed vacuum lines and the stalling problem went away. >Yes, that's what cured it, not replacing the check valve. A non turbo should >run fine with or without it. Furtunately it's not a E200 part... >> I remember reading soem where is there was a vacuum/air leak in this >> system that stalling/rough idling occurs. I guess that's correct. >Obviously, if there is an air leak somewhere behind the throttle body, the >mixture gets too lean and the engine will starve, specially at low rpm. This might somehow relate to the problem I've been having with my 8V NA 1985 900i which idles very slow when cold, and is fine once the engine warms up. I already have replaced almost all the small-bore vacuum hoses with silicone ones (testing the old ones as I go to see if they're cracked or blocked, but none have been), and I have found that the +12 volt feed from the fuse panel coming from the fuel-pump relay to the warm-up regulator and auxilliary air valve is broken, but jumpering around that with a new piece of wire made those devices work, but the engine idle is still far too low (around 500 rpm) when cold. Some of you would have been following the thread I started at Saabscene about it which can be found at: http://www.nospam.com/ubb/ultimatebb.php?/topic/3/1285.html Note that there isn't a PCV in the cylinder cover breather line of the car that I'm trying to solve this problem on. Regards, Craig. -- Craig's Saab C900 Page --> http://nospam/~c900 Sydney, NSW Australia Craig's Saab C900 Workshop -- For all Saab C900 Enthusiasts world-wide! http://www.nospam.net http://www.nospam c900nospam.apana.org.au Come and explore our site, and check out our web-forums, mailing list, etc.

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