Date: Sun, 20 Aug 2006 21:39:49 +0000 (UTC) From: Craig's Saab C900 Site <c900nospam.apana.org.au> Subject: Re: Last Chance for My '85 900
"darthpup" <amchitkanospamexcite.com> writes: >Sounds like you need a warm up valve and an auxiliary air valve. Check >the wiring to them and remove the aux air valve, place in freezer and >see if it opens up. It's easy to check the operation of these components - use the methods described in the Bentley manual. In my 1985 900i there is a break in the +12 v wire coming from the fuse/relay panel going to the warm-up reg and auxilliary air valve resulting in the at-start idle speed being really low (around 500 rpm), but as soon as the engine starts to warm up the idle speed comes up to the standard 850 to 900 rpm. One of my future repairs is to fix that broken wire. Apparently the 1985 cars are particularly prone to failed wiring which is something to do with the manufacturing of the wiring harnesses by a contract supplier to Saab. I'm not sure if it's a quality-control thing or simply using sub-standard wire. Regards, Craig. -- Craig's Saab C900 Page at | Craig's Classic Saab Workshop - Sydney .au http://nospam/~c900 | http://www.classicsaab.net and other URL's Email: c900nospam.apana.org.au | For Saab 99/C900/9000 Enthusiasts World-Wide! Alternate: saabonautnospaml.com | Web-forums, galleries, library, links, etc.
