Date: Sat, 20 Feb 1999 18:47:34 -0500 From: "Trollhattan Auto Parts, Inc." <bobnopsamrtroll.com> Subject: Re: Gas Caps & Idle
Correction to previous e-mail. Would not cause over pressurization, but a vacuum... Cheers, Bob "Trollhattan Auto Parts, Inc." wrote: > Hip82; > > Hip82 wrote: > > > Today, I flunked NJ emissions for the gas cap. Not wanting to disgrace my > > '87 900T with a rejected sticker, I ran to Walmart and picked up a Stant gas > > cap. I passed the test, but... > > > > Now it idles sometimes at 1200, sometimes at 1000, and sometimes at 800. It > > doesn't surge, it just picks one of those values and stays there. Then at > > the next time to idle (i.e., next stoplight), it will idle at a different > > one of the 3 values, but constantly. > > > > Obviously, the gas cap has something to do with it, so I'll replace it with > > a Saab OEM, or whatever's recommended. > > I don't believe the cap is at fault, however, I would always > recommend OEM parts. More than likely the old cap was > not sealing properly and this was hiding the fact that your > charcoal can is restricted and is causing an over pressurization > of the fuel tank... > > > > > > > But I'm curious why this happened. Does it have something to do with the > > pressurized gas tank and the AIC? > > Yes... Although you could just have a coincidental problem > with the AIC valve. Try removing the cap and seeing if the > problem goes away, if so Charcoal Can is most likely the > culprit... > > > > > > > Could it be a symptom of some other component needing replacement or > > adjustment? > > Yes see above... > > If you need -any- parts pricing, please do not hesitate to call on > us either bobnopsamrtroll.com, or visit us on the web directnopsamrtroll.com > ONLINE ORDER FORM: > http://www.cybertroll.com/saabfrm.htm > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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