Thanks for the input. One peculiarity is that the idle only seems to hunt after the car has warmed up a bit (idle is still on the low side when it's cold, though). Any thoughts as to why this would be the case? Tue, 3 Dec 2002 13:15:41 -0500, LEGUENnopsamORLD.NET suggested: : Hello Andrew, : I am sorry I do not have a good answer for you ,but have two Saabs that do : the same thing. On my 89 9000 2.0 na I did every thing you did and it did : not get any better, the only thing that helped some was that on the carbon : canister is a electric valve powered from the fuel pump relay. the valve was : always ticking, which open and closes loosing vacuum from the intake. The : ground wire is tied to the ECU. It would loose or open it ground. I never : could find out why, so I cut the wire and ran it to a ground. It help the : idle some, the valve would stay closed will running and open when the fuel : pump was not running. I not telling you to do that, and maybe someone can : answer why it opens and closes so much. But on my 94 9000 cse 2.3 turbo it : started to do the same thing. But on it I found a small fuel leak, well : maybe just moisture on the joint on the return line near the firewall a foot : after the fuel pressure regulator, where it goes from rubber to plastic : there is a clamp I tighten, it seems to idle better not 100% and also : respond better. : Good Luck, : Jean Paul : "andrewunix" <agreenbunopsamnet> wrote in message : news:slrnaupkof.q0d.agreenbunopsam.nyx.net... :> This one's still got me scratching my head. :> :> The car runs fine for the most part, but the idle hunts, particularly in :> cold weather or with the A/C running. :> :> I can't find any vacuum leaks. :> :> I've tried swapping out: Idle Control valve, distributor, spark plug :> wires, oxygen sensor, and even the engine management computer (bosch :> motronic). :> :> Nothing seems to help with this particular problem. :> :> The overall idle seems a little low, which I would think would indicate a :> vacuum leak somewhere, but I've replaced all of the vacuum hose in the car :> with no results. :> :> Car is an automatic, and it surges pretty badly when first put into Drive :> or Reverse. :> :> Sometimes when I'm driving I smell fuel coming through the ventilation :> system. :> :> Gas mileage in city conditions is pretty poor (16-18 mpg). :> :> Any ideas? -- agreenbu Return to Main Index
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